Jack helps you find life-changing roles at breakout companies.

Founding AE - New Markets at Borderless

Join Borderless as the Founding AE for New Markets in London, a Backed.VC-funded startup redefining global borders. You’ll lead international expansion into the US, UAE, and Canada and own the full sales cycle from zero to one. Reporting to the co-founders, you’ll help build a global category leader from the ground up with a mission-driven team that sponsors 25% of its own workforce.

Software Engineer (Computer Vision, C++) at Bolt6 Ltd

Software Engineer (Computer Vision, C++) in London, UK, you will own CV products end-to-end—from 3D geometry research to GPU optimization—for real-time live broadcast graphics. Bolt6 Ltd is a sports technology company delivering real-time computer vision for tennis, motorsport, and golf, with a politics-free culture. This role offers the chance to work on AR and tracking for professional sports.

Founding Product Engineer at Expedite

Founding Product Engineer role at Expedite, an AI-native law firm based in London. You’ll be the second engineer, owning the product end-to-end and building agentic AI systems to automate complex legal workflows. The position offers meaningful equity and the opportunity to ship real-world AI utility beyond prototype work.

Forward Deployed Engineer at Paddington Robotics Limited

Forward Deployed Engineer at Paddington Robotics Limited in London, focused on deploying robotics in UK supermarkets. Join a seed-stage startup led by a Magic Pony co-founder, with a London team drawn from Amazon and DeepMind. The role offers equity and the chance to own the entire deployment lifecycle from ground up in real-world retail.

Solutions Engineer at inploi

As the founding Solutions Engineer at inploi in London, you will bridge product and customers and own the technical delivery of talent agents. You will work directly with the CTPO and product leadership to move beyond standard support, debugging complex integrations and shaping the product roadmap. This is an opportunity to build a function from the ground up in a newly funded, scaling team at a.

Staff Engineer at Nory

Staff Engineer at Nory in Dublin, Ireland, with a backend-leaning focus and high autonomy in a remote-first role. The position offers ownership of architecture and product direction with meaningful equity as the company scales.

Staff Software Engineer at Truewind

Staff Software Engineer at Truewind in San Francisco, joining a YC W23 startup building AI-native accounting workflows to automate financial reporting. Backed by Scrum Ventures and Soma Capital, Truewind aims to reshape back-office software and offers ownership of the technical architecture and the chance to shape the culture from the ground up. The role provides a competitive salary up to 250K.

Senior Full-Stack Engineer at blok

As a Senior Full-Stack Engineer at blok in San Francisco, you’ll own the platform from Python-based agentic simulations to React frontends. blok is a 15-person startup backed by a16z scouts and MaC VC, with a team of exited founders and MIT/Stanford researchers. The role offers high ownership and the opportunity to translate science-driven work into real-world product impact.

Machine Learning Engineer at CTGT, Inc.

Machine Learning Engineer at CTGT, Inc. in San Francisco, CA. CTGT is a Stanford-born AI governance startup backed by Gradient Ventures and General Catalyst. The role focuses on mechanistic interpretability to build a deterministic control plane for deploying reliable and auditable LLMs.

Head of Forward Deployed Engineering at CommodityAI

You will serve as the Head of Forward Deployed Engineering at CommodityAI in San Francisco. You will design technical playbooks at the intersection of customers, product, and engineering to automate physical trade. This role offers the opportunity to build a critical function from the ground up at a fast-growing AI startup.

Senior Product Engineer at GrowthFactor AI

As a Senior Product Engineer at GrowthFactor AI, you will help shape the architecture of an AI-powered operating system. GrowthFactor AI is a high-growth PropTech startup founded by MIT alumni that already generates $1M ARR and manages billions in assets. You will own the product from vision to execution on a lean, elite team in Cambridge or NYC.

Head of Forward Deployed Engineering at CommodityAI

Head of Forward Deployed Engineering at CommodityAI leads the post-sale function. Based in San Francisco, CA, CommodityAI is an AI startup focused on global commodity logistics. The role involves building the department from the ground up, owning the deployment lifecycle, and applying AI to automate industrial trade operations.

Legal Counsel at Scarlet

Join Scarlet as the first Legal Counsel in London. Scarlet is a high-growth startup and the pre-eminent authority on AI medical devices, backed by top-tier European venture funds. Lead M&A, international expansion across nine jurisdictions, and strategic regulatory operations to drive the commercial agenda for a mission-driven healthcare innovator.

Founding Engineer at Fortalis

Join Fortalis as the Founding Engineer in London, UK. As the first technical hire, you’ll architect a data-intensive platform with Node.js, Python, and React and collaborate with the founders. This role offers the chance to own the technical foundation from day one and gain a meaningful stake in a mission-critical platform.

Content Engineer at Adamo

Content Engineer at Adamo in London, UK, blends hardware coding with cinematic tech content production. Join a fast-growing robotics startup building teleoperation technology and work directly with the founders as an early hire. The role offers a hands-on opportunity to program robots and demonstrate their real-world capabilities.

Solutions Engineer at Kyra

Solutions Engineer at Kyra in London, UK. Build live software prototypes in client rooms for brands like Coach and H&M using Claude Code, Cursor, and custom AI agents. Turn messy social data into working platform versions quickly to help win deals.

Founding Full-Stack Engineer at Kiki Club

Founding Full-Stack Engineer at Kiki Club in London, UK. Backed by Blackbird and former executives from Airbnb and Uber, the startup is building an invite-only, AI-enabled global subletting marketplace. You will own a TypeScript/Next.js stack and receive meaningful early equity as part of a growth-focused team and culture.

Developer Evangelist at LlamaIndex

Developer Evangelist at LlamaIndex in San Francisco, CA, represents the company as the public face of its document parsing engine. The role offers the opportunity to shape how developers solve document ingestion at scale through technical storytelling and live demos.

Agentic Engineer at Snapp Stats

Snapp Stats, an a16z-backed startup led by the co-founder of Caviar, seeks an Agentic Engineer in San Francisco. You will own the orchestration layer, tool design, and eval harnesses for production-grade agents that deliver real-time insights to bettors and fantasy players. With 5+ years of experience, this role offers the opportunity to shape the frontier of agentic systems in a highly charged.

Senior Software Engineer at CTGT, Inc.

As a Senior Software Engineer at CTGT, Inc. in San Francisco, you will own architectural decisions for high-performance, auditable systems. CTGT is a Stanford-born team backed by Gradient Ventures and General Catalyst, building a deterministic governance layer for AI used by Fortune 500 companies. The role offers real ownership to tackle hard distributed systems problems in a demanding AI.

Software Engineer, iOS/Mobile at Beacon AI Inc.

Software Engineer, iOS/Mobile at Beacon AI Inc. in San Mateo will build mobile platforms for aviation safety. Beacon AI is an aviation AI startup focused on safety for the DoD and major airlines. The role offers the chance to ship practical iOS software as part of a collaborative, mission-driven team.

Senior Software Engineer at CommodityAI

Senior Software Engineer at CommodityAI in San Francisco. You will work with the founders to architect agentic AI systems and data pipelines that manage billions in transaction value for the global commodities industry.

Senior Software Engineer at Borderless

Senior Software Engineer at Borderless in London, building AI-powered tools to streamline the UK immigration process for over 600 businesses. Backed by Backed.VC and Entrepreneur First, Borderless offers a fast-paced environment where you ship code multiple times a day using TypeScript. Visa sponsorship, private health insurance, and annual offsites highlight a mission-driven role with.

Technical Delivery Engineer at FITFILE Group Limited

As a Technical Delivery Engineer at FITFILE Group Limited in London, you will own the end-to-end implementation of decentralized data environments for NHS Trusts and major pharma players. FITFILE Group Limited is a well-resourced health data technology scale-up transforming a £7bn market with internationally patented privacy-preserving linkage technology. The role offers a flat, engineering-led,.

Founding ML/Data Engineer at My Data Value

Join My Data Value as the founding ML/Data Engineer and own a large, untapped dataset. The role sits in a high-growth hospitality tech startup using private Booking.com data and Airbnb signals. Remote-first in the UK with up to 1% founder equity and the opportunity to build a data-driven automation platform from the ground up.

Founding AI Engineer at Bead AI

Founding AI Engineer at Bead AI in London leads the development of an AI-first platform that automates complex enterprise audits. Bead AI is an early-stage company with an ambitious founding team building agentic workflows and deploying LLMs to solve real-world problems in legacy industries. The role includes up to 1.5% equity and a path to San Francisco in 2026.

AI Engineer at StackOne

AI Engineer role at StackOne in London, UK. StackOne is a fast-growing European startup backed by GV and Workday Ventures, building an AI R&D lab for high-precision tool calling. The role offers the opportunity to ship production-grade AI features and help shape the infrastructure for agentic integrations.

Senior UI Engineer at StackOne

StackOne is seeking a Senior UI Engineer in London, UK. As the first dedicated UI/UX Engineer, you will own the design system and the micro-frontend architecture for a platform used by top-tier SaaS companies. Backed by $24M from GV and Workday Ventures and supported by a veteran team from Google and Microsoft, the role offers the chance to shape a category-defining product with pixel-perfect UI.

Full Stack Product Engineer at infact

Full Stack Product Engineer at infact.io in London, UK, building the B2B SaaS experience end-to-end with Svelte UIs and Go services. You will work directly with the CTO on a real-time credit bureau initiative at a fintech scale-up. The role offers the opportunity to ship features that improve financial inclusion at scale, leveraging modern AI-assisted workflows.

Founding AI Engineer at Tyle

Founding AI Engineer at Tyle in San Francisco, an a16z-backed stealth startup. Tyle is building the visual biomarker layer for human health, combining proprietary hardware with multimodal models. The role offers the chance to own the full stack—from raw sensor data to longitudinal health insights—and contribute to shaping preventative medicine.

Technical Co-Founder (CTO) at Antler

Join Antler as Technical Co-Founder (CTO) to lead the technical direction of a new AI venture in London. You'll design Physics-Informed Neural Networks that plug into factory PLCs to optimize manufacturing setpoints in real time. This founding role seeks a builder with ML or Mechatronics expertise to move models from the laptop to the factory floor, targeting a £2M pre-seed.

Product Engineer at Safi

Join Safi as a Product Engineer in London. Safi is a high-growth climate-tech startup backed by LowerCarbon Capital and Nosara Capital, building AI-powered tools for massive recycling plants. The role offers a clear path toward CTO responsibilities and a chance to solve real-world problems that matter.

Product + Automation Engineer at IQ Capital

Take on the role of Product + Automation Engineer at IQ Capital in London, the first such role at this premier VC with $1bn AUM. You'll build the firm's core data foundations and deploy AI/ML systems from scratch at the heart of the investment platform, collaborating with partners to shape deal sourcing and support 60+ deep tech companies in AI and quantum. With 2-4 years of data engineering.

Founding Engineer (Infrastructure & Platform) at Helmguard

Founding Engineer (Infrastructure & Platform) at Helmguard.ai in London, building secure, multi-tenant risk infrastructure for AI agents in regulated finance and healthcare. The role offers ownership of the core platform on.

Senior Product Engineer at infact

Senior Product Engineer at infact.io in London, reporting to the CTO, you’ll architect high-performance Go microservices on AWS to build the UK’s first real-time credit bureau. infact.io is a fintech scale-up backed by £4m from AlbionVC and is reshaping the UK credit data market. This seed-stage opportunity offers significant equity and total technical ownership in a hybrid London-based role for.

AI Engineer at Withshepherd

As an AI Engineer at Withshepherd.com, you'll work with the CTO to architect RAG pipelines and LLM agents. The role offers the opportunity to own zero-to-one product development in a $700B+ commercial insurance market.

Medical Director at Ollyinsurance

As Medical Director at Ollyinsurance.com in London, you will shape the clinical backbone of the UK's first AI-native digital health insurer. This is a founding role where you own clinical governance, help design the AI architecture, and lead MHRA medical device classification. Join a YC-backed startup with a $3M raise and a team drawn from Lemonade and AXA Health to build a clinical model from.

Senior Data Engineer at Stint Ltd

We are hiring a Senior Data Engineer at Stint Ltd in Central London. Stint Ltd is a high-growth London scale-up building a workforce management platform used by thousands of restaurant partners. The role progresses from ETL toward MLOps, deploying AI-enabled pipelines on AWS and shaping the future of hospitality data.

Junior Product Engineer at StudyStash

Join StudyStash as a Junior Product Engineer and ship production code in a Next.js and TypeScript stack. Based in London, this 16-person B2B AI startup builds AI-powered study tools used by students and universities. The role offers real ownership, an AI tokens budget, and a clear path for growth.

Software Engineer at Electric Twin

Software Engineer at Electric Twin in Central London, joining a Soho-based engineering team building a behavioral simulation platform. Backed by Atomico, LocalGlobe, and Marc Andreessen, Electric Twin is building a platform used by organizations across 155 countries. As an early engineer at Mid, Senior, or Principal levels, you’ll own complex systems end-to-end and work directly with the.

Product Engineer at Ollyinsurance

Product Engineer at Ollyinsurance.com in London, UK, focusing on the intelligence layer of an AI health companion. You will work with founders to integrate wearable data from Oura and Garmin into LLM-driven insights, owning the data model and fast iteration. This venture-backed, high-growth role offers the chance to ship practical features that improve lives without the friction of traditional.

AI Engineer at Gradient Labs

As an AI Engineer, you will design autonomous agents for real-time financial interactions. Gradient Labs, led by ex-Monzo leadership in a high-growth London startup, is reinventing customer support for regulated industries. This ground-floor opportunity offers significant equity and the chance to help build the next generation of fintech infrastructure in a hybrid London environment.

Senior Founding Technical Lead at Venmark

Senior Founding Technical Lead at Venmark in London, the first technical hire building an AI-powered operating system for the European certification sector. Venmark is an AI-native startup backed by £12m from Creandum and Cherry Ventures, automating mission-critical workflows from route planning to compliance reporting. This role offers a high-impact opportunity to shape a platform from scratch,.

Founding Technical Lead at Venmark

Founding Technical Lead at Venmark, based in London, UK. Venmark is an AI-native startup disrupting a $67B physical certification market, backed by $12M from Creandum and Cherry Ventures, building an automated compliance operating system. The role offers significant equity and high autonomy to work with a serial exited founder on transforming mission-critical asset certification across Europe,.

Product Engineer at inploi

Product Engineer focused on the agentic stack at inploi in London, UK. inploi is a leading independent candidate engagement platform. You will help scale autonomous Talent Agents already deployed with major enterprise customers and own the infrastructure that sources, scores, and interviews millions of candidates.

Founding Platform & Security Engineer at Gradient Labs

You will be the first Platform & Security Engineer at Gradient Labs, based in London. In this greenfield role, you will architect and secure the unified AI operations agent built for high-stakes financial services. You will own scaling a multi-cloud infrastructure and help define the security framework as part of Gradient Labs' founding team.

Staff Software Engineer at Flawless

Staff Software Engineer at Flawless in London, UK, writing TypeScript and Python. Anchor a 15-person product engineering team and shape the architecture for AI-powered performance-editing tools. Flawless is a London-based AI company serving Hollywood studios, offering a high-growth opportunity at the intersection of generative AI and filmmaking.

Senior iOS Engineer at Early

Senior iOS Engineer (+ Equity) at Early in London, UK. Join a London startup reinventing preventative healthcare through hardware, sensing tech, and AI-driven insights. Lead SwiftUI work and use modern AI tooling to ship practical features that support early detection and better health outcomes.

Senior Full-stack Engineer at Limbic

Senior Full-stack Engineer at Limbic in the UK. You will build end-to-end features using TypeScript and React to support clinical-grade AI for mental health care. This role offers the chance to help Limbic scale into the US market within a regulated environment while shipping impactful software.

Founding Engineer, Agent Systems at Helmguard

As a Founding Engineer, Agent Systems at Helmguard.ai in London, you will own the agent orchestration platform and build the reliability and evaluation infrastructure for AI agents. The role offers outsized equity upside as part of a London-based team.

Forward Deployed Engineer at Helmguard

Join a Forward Deployed Engineer role at Helmguard.ai in London, based in King's Cross. Helmguard.ai is an elite team of ex-Palantir and Stanford founders building agent-native risk infrastructure, and the startup has already reached seven-figure revenue. You will own enterprise accounts and partner with the CTO to ship code using advanced AI tooling for large financial and healthcare.

Founding AI Engineer at Alcor Labs

As Founding AI Engineer at Alcor Labs in San Francisco, you will be the first AI hire. Alcor Labs is building AI-powered smart glasses to assist industrial technicians in the US and Europe, backed by legendary investors including a former Founders Fund GP. You will own the multimodal reasoning pipelines and edge inference that turn real-time video into actionable guidance, with substantial.

Full Stack Engineer at Caplight

Caplight is seeking a founding-level Full Stack Engineer to build real-time data and trading infrastructure for its San Francisco team. This in-person role offers autonomy to own product areas from conception to launch and to apply AI-driven automation in the private markets. The position includes meaningful equity and the chance to shape the pricing layer of the private economy.

Clinical Evaluation Specialist - Radiology at Scarlet

The Clinical Evaluation Specialist - Radiology role is based in London at Scarlet. Scarlet is an AI medical devices startup working with clinicians and ML engineers to navigate regulatory pathways. This position offers the chance to assess imaging software and help bring innovative medical technology to patients.

Senior Full Stack Engineer at ScienceMachine

As a Senior Full Stack Engineer at ScienceMachine in London, you will own the full stack—from React and Python to Kubernetes on GCP—to automate bioanalysis workflows. ScienceMachine is a London-based startup building software to automate complex bioanalysis and support researchers. This role offers high ownership and the chance to scale a platform used by scientists to accelerate discovery.

Founding Software Engineer at Alcor Labs

Founding Software Engineer at Alcor Labs in San Francisco, building AI-powered smart glasses for the industrial workforce. The startup is a $5M seed-stage company backed by A* and SpaceX veterans, and it is already generating revenue through pilots with enterprises like Equans. This is a founding seat with the opportunity to own the computer vision pipelines and agentic reasoning loops that.

Director of Enterprise Sales at Nexus FrontierTech Ltd (also registered as NEXUS FRONTIER TECH LIMITED)

Director of Enterprise Sales at Nexus FrontierTech Ltd, London, UK. Nexus FrontierTech is a fast-growing UK company applying AI to transform financial operations for Tier-1 banks, with HSBC and UBS as reference logos. The role leads enterprise sales to close sizable ACV deals and contribute to a path toward $100M ARR with meaningful equity.

Founding AI Engineer at Satorus Group Limited

Founding AI Engineer at Satorus Group Limited in London, you will help build a mission-critical platform from the ground up. You'll work directly with the CTO, applying Python, React, and Agentic AI to design scalable automated intelligence workflows. This early role offers the chance to shape how organizations automate analysis instead of simply aggregating data.

Head of Conversion at Viktor

You will serve as Head of Conversion at Viktor.com, based in New York. You will own the conversion funnel from paid click to signup, manage significant spend, run high-velocity CRO experiments, and have direct access to founders on a small, autonomous team.

Growth Analytics Engineer at Viktor

Growth Analytics Engineer at Viktor.com. Own the entire data stack from ClickHouse and Python pipelines to Hex dashboards, and report directly to the co-founders in Europe.

Full Stack Software Engineer at Stint Ltd

Full Stack Software Engineer role at Stint Ltd in London, building the core systems behind the UK’s largest flexible workforce platform. Stint Ltd is a hospitality AI startup that has grown to over £1m ARR in 10 months and is preparing a major US expansion. You’ll work with Go, Python, and Flutter on products used by brands like PizzaExpress and Gail's, directly affecting thousands of users.

Founding Engineer - Research at Prior Foundry

Founding Engineer - Research at Prior Foundry will bridge AI research and real-world impact by building LLM-driven simulations for policy problems. The role is with Prior Foundry, a stealth-mode startup with a London and NYC footprint, giving you ownership of the full ML stack and a product for the public sector. With 2+ years of production ML experience, you’ll join a founding team at the.

Security Engineer, Detection & Response at Doxy.me

Doxy.me is hiring a Security Engineer, Detection & Response in London, UK. This greenfield role involves building a modern security operations function, implementing detection-as-code and automated response across a large AWS environment. You would own the detection roadmap for a HIPAA-regulated platform serving 180+ countries, making a tangible impact on global healthcare security.

Forward Deployed Software Engineer at Stint Ltd

As a Forward Deployed Software Engineer, you’ll build systems powering a flexible workforce for Gail's and Pret a Manger in London. Stint Ltd is an AI hospitality startup that reached £1m ARR in ten months and is launching in the US. This role offers a clear path to contribute to scalable infrastructure during international expansion.

Applied AI Solutions Architect at LlamaIndex

The Applied AI Solutions Architect role at LlamaIndex is based in San Francisco, CA. Lead technical strategy for AI teams and architect production-grade RAG systems to advance knowledge work. A deep engineering background and passion for solving infrastructure challenges at the edge of Generative AI will help you shape the platform’s future.

Lead Backend Software Engineer at Beacon AI Inc.

Lead Backend Software Engineer at Beacon AI Inc. in Redwood City will architect mission-critical aviation AI systems. Beacon AI is a well-funded startup with DoD contracts and airline partnerships, offering a hybrid San Carlos role and meaningful equity. Bring 5+ years of Python or Node.js to build scalable distributed systems, with 100% medical premiums and equity.

Senior Software Engineer at Formulary Financial, Inc.

Join the founding team as a Senior Software Engineer at Formulary Financial, Inc., a Khosla Ventures-backed startup rebuilding the trillion-dollar fund administration industry in New York. You will ship AI-native products for the world's largest asset managers. The role offers meaningful equity and the chance to shape a category-defining company alongside veterans from Ramp and Square.

Software Engineer (AI Agents) at Pylon Labs, Inc.

We are hiring a Software Engineer (AI Agents) in San Francisco, CA. Pylon Labs, Inc. is backed by a16z and General Catalyst and is building a platform used by Linear and Cognition for B2B post-sales. The role offers hands-on coding with a senior SF team to advance enterprise AI through agent development.

Member of Technical Staff, Full-Stack Product at LlamaIndex

You will join LlamaIndex as a Member of Technical Staff, Full-Stack Product in San Francisco, CA. You will build core SaaS infrastructure and open-source tools powering document understanding for LLMs. You will ship AI-native apps at scale and influence the product roadmap through direct customer collaboration.

Senior AI Solutions Engineer at Plentific Ltd

Senior AI Solutions Engineer at Plentific Ltd in Central London. Plentific is a London-based PropTech scale-up backed by Highland Europe and Brookfield. You will lead real-world AI projects, including RAG architectures and LLM-driven automation, at a platform serving hundreds of thousands of homes.

Senior Engineering Manager at Plentific Ltd

The Senior Engineering Manager at Plentific Ltd will lead multiple engineering squads and set technical strategy. The role offers the opportunity to shape the PropTech platform while developing teams in a fast-growing environment.

Senior Engineering Recruiter at Omnea

Senior Engineering Recruiter at Omnea in London, UK. The role lets you own the technical hiring playbook and gain meaningful equity as the company grows.

Founding Engineer at The Nimble Memory Company

Founding Engineer at The Nimble Memory Company in London. You will work directly with the CTO to design AI systems that turn personal knowledge into actionable instincts. This high-ownership role offers meaningful equity and a chance to shape the stack, product, and engineering culture from day one.

Staff Software Engineer at Definely

In this hands-on IC role, you will architect AI-powered document review tools used by clients like Barclays and Slaughter and May. You will shape technical strategy across a modern full-stack and mentor engineers in London.

Senior Mechanical Engineer at Mytos Bio Limited

As a Senior Mechanical Engineer at Mytos Bio Limited in London, UK, you will lead the design of complex electro-mechanical systems that interface with optics and fluidics. Mytos Bio Limited is a Y Combinator-backed startup developing automated cell production at the Imperial College Innovation Hub, with machines already deployed in multibillion-dollar biotechs. The role offers the opportunity to.

Full-Stack Engineer at Letty

Full-Stack Engineer at Letty, a London-based company building an AI agent layer for the real estate industry. Own the entire tech stack—from Python LLM orchestration to real-time voice infrastructure—in a fast-paced, six-day-a-week environment. This is a founding-level opportunity with meaningful equity, backed by Entrepreneurs First and top-tier VCs in Hoxton.

Product Engineer at Seamflow

Product Engineer at Seamflow.com in London, UK. Seamflow is a 14x oversubscribed seed-stage startup backed by the founders of Coinbase, Spotify, and Reddit. You will build AI-integrated systems to automate complex workflows in aerospace, healthcare, and energy, owning features end-to-end with React, Python, and LLMs.

Senior Electrical Engineer at etch Associates

This is a Senior Electrical Engineer role at etch Associates in London, UK. etch Associates is a design-led London consultancy focused on sustainable, high-performance projects. You will lead electrical design from RIBA Stage 2 through site delivery on projects that include heritage sites, healthcare facilities, and science labs.

Software Engineer at Nomio

Software Engineer at Nomio in London. Nomio is a profitable, independent London legaltech company that turns messy contracts into verified data. You will own features end-to-end, lead user research and system design, and ship high-stakes code on a stable Python, Django, and HTMX stack.

The Last Patient Coordinator at Doctours

The Last Patient Coordinator at Doctours oversees patient logistics for a tech-enabled medical travel startup. You will design AI-powered systems to automate patient coordination and handle high-stakes conversations when failures occur. Based in New York, the role offers a path to advance global healthcare access through technology.

Software Engineer at Conduct

Software Engineer at Conduct in London, UK. The role offers the opportunity to own the full lifecycle of agentic systems and mission-critical infrastructure from inception to production.

Forward-Deployed Engineer at SysGroup PLC

As a Forward-Deployed Engineer at SysGroup PLC in London, you will join a high-velocity internal AI transformation program. The role leverages the scale of a publicly listed tech firm to build production-grade AI agents, RAG systems, and an organizational 'second brain'. This opportunity enables rapid development and deployment across functions from sales to M&A with backing from an established.

Forward Deployed Engineer at Strala

As a Forward Deployed Engineer at Strala, you deploy agentic AI systems into production for major enterprises. Strala is backed by Peter Thiel’s Founders Fund and an early investor in OpenAI and Scale AI. The role provides ownership of the full client lifecycle for enterprise customers in a fast-paced San Francisco environment alongside former Palantir and Optiver engineers.

Medical Device Quality Engineer at Scarlet

As a Medical Device Quality Engineer at Scarlet in London, you will work on AI and software medical device certification. Scarlet is Europe's only Notified Body dedicated to AI and software medical devices, backed by Creandum. With 4+ years in medical devices and a focus on ISO 13485 and IEC 62304, this is an opportunity to lead certification as healthcare becomes more accessible.

Full-Stack Engineer at Drafter Inc.

Full-Stack Engineer at Drafter Inc. in San Francisco, CA, focusing on 3D visualization and CAD integration with Python, React, and Three.js. Drafter Inc. is building an AI Manufacturing Engineer to automate manual documentation and CAD work, accelerating the production of rockets, robots, and medical devices. As an early member of the founding team, you’ll have high autonomy and significant.

Applied AI Engineer at Seamflow

Applied AI Engineer at Seamflow.com in London, UK. You'll ship end-to-end agents and document intelligence systems from day one.

Forward Deployed Engineer at Seamflow

The role is Forward Deployed Engineer at Seamflow.com in London, UK. You will embed with customers, design AI-powered workflows, and ship production code from day one in a high-ownership, London-based environment.

Staff Software Engineer at UnlikelyAI

Staff Software Engineer in Central London at UnlikelyAI will lead the architecture of the company's new public API platform. UnlikelyAI is a neurosymbolic AI startup founded by the creator of the technology behind Amazon Alexa. The role offers the chance to shape a foundational AI platform for tier-1 banks, with a base salary of £130k–£150k plus meaningful equity.

Backend Engineer at Shareback

Shareback.com is hiring a Backend Engineer in London to own production services built with Node.js and Postgres. This London-based fintech startup emphasizes reliable, high-performance APIs and a scalable technical architecture. With 4+ years of experience, you will help drive the product forward as part of a high-growth team.

Product Infrastructure Engineer at Truewind

As a Product Infrastructure Engineer at Truewind in San Francisco, you will own the data foundation and execution systems powering autonomous agents that handle critical financial workflows. Truewind is a YC-backed startup moving beyond AI copilots to build durable production substrates and serves hundreds of firms. With 4+ years of experience, you will architect durable domain models and.

Product Implementation Associate at Worldover

This Product Implementation Associate role is at Worldover in London, UK. You will bridge Sales and Engineering, owning the end-to-end customer journey from technical configuration to long-term relationship management. As an early hire at a high-growth SaaS startup serving regulated industries, you'll help scale the platform and shape how global enterprises manage complex supply chain data.

Founding AI Engineer at Fleetcraft

Join Fleetcraft as the Founding AI Engineer. Fleetcraft is a seed-stage startup backed by Susa Ventures and Liquid 2 VC, with a Fitzrovia office and deployments across three continents. You will ship production LLM systems for aircraft maintenance and help build the aerospace infrastructure with a high-trust team.

Senior Front-end Engineer at Levels Tech

As a Senior Front-end Engineer at Levels Tech in London, you will own complex React architectures. You will join Levels Tech's high-performance engineering team building next-generation digital experiences. The role offers an opportunity to drive technical excellence and make a meaningful impact as the company scales.

Software Engineer at Valon Technologies, Inc.

Software Engineer role at Valon Technologies, Inc. building an AI-native operating system for the mortgage industry. The a16z-backed company draws on engineers from Stripe and Jane Street to reshape regulated finance at scale. This high-autonomy role in NYC, SF, or remote offers engineers with 4+ years of experience the chance to tackle complex architectural challenges.

Founding Solutions Engineer at Restate

Join Restate as the Founding Solutions Engineer on the US East Coast. Restate is a well-funded startup founded by the creators of Apache Flink with Meta engineering leads. You will own the production-readiness lifecycle for a durable Rust- or Go-based execution runtime and define deployment playbooks that enable meaningful customer-facing impact.

Founding Software Engineer at Clubb

Founding Software Engineer at Clubb in London. Clubb is a profitable, bootstrapped startup and this is its first engineering hire to work with the founders. You will own the technical roadmap and build AI-powered tools for creators, with no VC oversight.

Full Stack Engineer at WEXLER AI LTD

Full Stack Engineer role at WEXLER AI LTD in London, building across Node.js, Python and AI services to architect systems for complex litigation. WEXLER AI LTD is an Oxbridge-founded, fast-growing legal tech startup backed by Tier 1 investors and serving elite law firms. This early position offers significant equity and the opportunity to own meaningful impact as the platform scales.

Product Engineer at Conduct

Product Engineer at Conduct in London, building the AI operating system for enterprise customers. You will own features from inception to ship and tackle large-scale legacy software problems using Kotlin and specialized LLM harnesses.

Full Stack Software Engineer at Faculty

Join Faculty as a Full Stack Software Engineer in London, UK, to build production-ready AI solutions with Python, FastAPI, TypeScript, and React. Work on AI systems that support NHS and government decisions, with cloud experience in AWS or Azure. This autonomous, fast-paced role offers ownership of high-impact software at a market-leading AI consultancy.

Product Engineer at Clove

Join Clove as a Product Engineer in London, owning features from database schema to polished UI. Work with a small senior team led by ex-Netlify and incident.io leadership on a fintech platform backed by Accel and Kindred. As one of the first hires with no PMs, you’ll shape the engineering foundations and tackle 0→1 challenges with full ownership.

Engineering Manager, Voice AI Agents Platform at HOAi

Engineering Manager for the Voice AI Agents Platform at HOAi leads a team of 4-8 engineers in Redwood City, California. HOAi is an Inc. 5000-ranked startup building production-grade voice AI agents that manage complex business workflows beyond chatbots. The role offers hands-on leadership with direct collaboration with the CTO to scale a platform recognized for its innovation and culture.

Technical Co-Founder at Modern Collections

Technical Co-Founder role (25-50% equity) at Modern Collections in New York. We are building an AI-native operating system to replace legacy debt-collection software and automated workflows in a massive, stagnant market. Own the full technical surface area and drive the transformation of a $20B+ industry from NYC.

Engineering Manager / Architecture Delivery Lead at worx-ai

Engineering Manager / Architecture Delivery Lead at worx-ai guides distributed engineering teams and owns the technical direction for Gen AI and predictive analytics projects. In a boutique AI consultancy for Fortune 50 clients, you will define system standards and work with enterprise stakeholders to deliver AI systems. This remote US role offers autonomy and impact for someone with 7+ years in.

Senior Full Stack Developer at Consultant Connect Ltd

Senior Full Stack Developer at Consultant Connect Ltd, an NHS-backed telemedicine startup in the UK. You will lead front-end development on a high-impact platform in a remote-first, autonomous environment using Angular, Django and Flutter. With 6+ years of experience, you will own features end-to-end on an Oxford-based team building scalable, real-world solutions that reduce patient wait times.

Founding Full Stack Engineer / SRE at Asymmetric Security

Founding Full Stack Engineer / SRE at Asymmetric Security in London, UK. Asymmetric Security is building the first AI-native Digital Forensics platform to automate incident response for the AGI era. This role offers the opportunity to scale a production SaaS and lead the development of agentic AI systems at a mission-driven startup protecting the next generation of AI labs.

Full Stack Engineer at Dragonfly

Join Dragonfly as a Full Stack Engineer in London, building and owning the full stack of a cloud and GenAI product. Dragonfly is a high-growth startup backed by Tier 1 investors with over 20 world-renowned brands on board. This is a rare opportunity to own the full-stack development from its earliest stages, using TypeScript, Python, and agentic frameworks.

Forward Deployed Engineer at Console

Join as a Forward Deployed Engineer in San Francisco to architect AI-powered workflows and automate IT, HR, and Ops. Console, a Thrive Capital-backed startup, brings together a world-class team from Discord and Palantir. You’ll own the full customer arc—from initial engagement to delivering high-stakes executive demos.

Founding AI Engineer at Marble AI

Founding AI Engineer at Marble AI in Munich, Germany. As the first engineering hire, you’ll help build infrastructure to run production agents and enable AI to understand complex knowledge work. This is a founding-equity opportunity to shape a generational technology from the ground floor.

Lead Software Engineer at Faculty

Lead Software Engineer at Faculty in London, designing production-grade ML systems. Faculty is a premier AI transformation firm working with global energy operators on the clean energy transition. You will lead technical strategy, mentor engineers, and build scalable backend infrastructure to support net-zero initiatives.

Founding Engineer at Asymmetric Security

Founding Engineer at Asymmetric Security in London, UK. You will help build the first AI-native platform for digital forensics and incident response alongside a team of cybersecurity experts. This early-stage role offers end-to-end feature ownership and the chance to contribute at the earliest stage.

Senior Software Engineer at Multiverse

Senior Software Engineer at Multiverse.io in London, UK. The role focuses on mission-critical backend work, from SSO to release systems, for a global learning platform used by 1,500+ companies. You’ll join an AI-first environment that emphasizes building foundational services with meaningful impact.

Analytics Engineer at Multiverse

Analytics Engineer at Multiverse.io, based in London. Own end-to-end dbt pipelines on Snowflake to transform raw data into trusted insights in a high-growth, mission-driven role with hybrid flexibility in London.

Backend Engineer at Volumetree

Backend Engineer at Volumetree will design, build, and run production services end-to-end using FastAPI, Postgres, and AWS. Volumetree is launching its London engineering hub as an AI-first product studio serving 80+ enterprise clients. As an early UK hire, you’ll work directly with founders in a high-autonomy role to ship AI-driven products and shape the team’s foundation.

Staff DSP Software Engineer at Tarana Wireless

As a Staff DSP Software Engineer at Tarana Wireless in San Jose, you will own RF calibration algorithms and Layer 1 work on a proprietary 5G protocol. Tarana Wireless builds fixed wireless access to deliver fiber-class internet and expand connectivity. This role offers the opportunity to work at the hardware-software edge and contribute to next-generation wireless development.

Integration Test Engineer at Tarana Wireless

Integration Test Engineer at Tarana Wireless in San Jose. You will validate fiber-class wireless hardware using Python-driven automation in advanced labs, with work spanning 24 countries. This role offers the opportunity to contribute to global connectivity at Tarana Wireless, from bring-up to deployment, with an equity component.

AI Product Engineer at Brain Co

As an AI Product Engineer at Brain Co in San Francisco, you’ll help deploy frontier AI alongside government and healthcare leaders. Brain Co is an elite AI startup backed by Patrick Collison and Andrej Karpathy, with a team from DeepMind and Tesla. The position emphasizes end-to-end ownership and the opportunity to deliver real-world impact at a fast-growing company.

Lead Software Engineer at Circuitmind

Lead Software Engineer (+ Equity) at Circuitmind.io, based in London, UK. Join a Python-powered EDA platform that automates hardware design for space travel and medical robotics. Enjoy 5 weeks of work-from-anywhere flexibility and meaningful equity in a high-growth startup for engineers with 5+ years of deep-tech experience.

AI Technologist / Engineer at Cubitts

AI Technologist / Engineer at Cubitts in London, you will join a high-impact Skunk Works team building AI agents and automation tools that interface with the real world. Cubitts is a London-based eyewear innovator with over 350,000 customers. The role offers a rare opportunity to deploy LLMs and internal apps across eye tests, glazing labs, and global supply chains, at the intersection of retail.

Senior Software Engineer at Omen AI

Senior Software Engineer at Omen AI in San Francisco will own the backend architecture and security for edge systems processing real-time sensor data. Omen AI is a CRV-backed company building the diagnostic AI layer for critical industrial infrastructure. The role offers up to $370K total compensation as you work on scalable edge and predictive AI workloads.

Senior Research & Development Engineer at Omen AI

Senior Research & Development Engineer at Omen AI in San Francisco leads concept-to-prototype work on field-deployed spectroscopy sensors. Omen AI miniaturizes lab-grade spectroscopy into embedded sensors to protect critical infrastructure. Join a 20-person, seed-funded startup to take ideas from whiteboards to benchtop prototypes and grow with the team.

Full-Stack Product Engineer at Infilla

Join Infilla as an early Full-Stack Product Engineer on a TypeScript/Remix stack in a hybrid San Francisco role. You’ll have ownership of product decisions and ship fast, seeing your code used by government staff within days.

Product Engineer at Adaptyv Bio

Join Adaptyv Bio in Lausanne, Switzerland, as a Product Engineer building the software orchestration layer that lets AI agents control physical lab hardware. This is a chance to bridge software and biology at a company accelerating drug discovery for Microsoft.

Senior Full-Stack Engineer at Age Bold, Inc.

Senior Full-Stack Engineer at Age Bold, Inc. in Los Angeles, owning architecture and end-to-end features on a React/Python/AWS platform. Age Bold is backed by a16z and Khosla Ventures and works to help older adults stay active and independent. The role offers a base salary of $150k–$200k plus equity and the chance to shape the technical foundation of a healthcare-focused product.

Senior Product Owner / Engineer at DQC

As Senior Product Owner/Engineer at DQC in Munich, Germany, you will own the roadmap and design the spec-to-code workflows for autonomous data quality. DQC is a Munich-based startup with SOC 2 compliance and enterprise customers, focused on agentic AI development. This role offers a high-growth environment with meaningful ownership and above-market equity.

Full Stack Product Engineer at Metrisenergy

Full Stack Product Engineer at Metrisenergy.com, based in London, UK. Metrisenergy.com is a high-growth climate tech startup backed by Octopus Ventures and Aenu VC, building the market’s first AI-native solar asset management platform with 5,350+ projects. With 5+ years of product-minded engineering experience, you’ll have the opportunity to ship impactful features from day one that touch real.

Senior Power Systems Electrical Engineer at Omen AI

Senior Power Systems Electrical Engineer at Omen AI in San Francisco, CA. Own the high-voltage architecture and plasma generation systems that enable real-time predictive failure modeling. Join a San Francisco startup building miniaturized lab-grade spectroscopy for industrial-scale use and protecting critical infrastructure.

Senior Machine Learning Engineer at Omen AI

Join Omen AI as a Senior Machine Learning Engineer to build the diagnostic layer for critical industrial infrastructure in San Francisco. You will own an end-to-end ML pipeline and develop physics-based models that detect threats in real time, with a founding team that has previously exited and six major enterprise customers signed. This SF role offers meaningful equity upside and the.

Senior Manufacturing Engineer at Omen AI

As a Senior Manufacturing Engineer, you will own the transition from validated prototypes to high-volume production. Omen AI is a San Francisco-based company building embedded sensors that miniaturize lab-grade spectroscopy to protect critical infrastructure. This role offers the opportunity to design the supply chain and production architecture from the ground up and receive meaningful equity.

Senior Test Engineer at Omen AI

Join Omen AI in San Francisco as the company's first Senior Test Engineer, helping a CRV-backed startup build its test function from scratch. You will design custom automated rigs, write Python-based DAQ scripts, and stress-test hardware for mission-critical datacenters and industrial hydraulics. Work alongside ex-Anduril engineers to shape testing from day one and own the high-impact scope of.

Engineering Manager at Assort Health

Engineering Manager at Assort Health leads an elite engineering team to shape AI-powered patient access solutions. Assort Health is a high-growth startup building AI voice agents for healthcare, with roles in San Francisco or New York. The position offers the chance to scale high-performing teams while staying hands-on with cutting-edge AI tech and making a meaningful impact on the healthcare.

Machine Learning Engineer at Terranox AI

Machine Learning Engineer at Terranox AI in San Francisco, as the first dedicated ML engineer, will build computer vision models from scratch. Terranox AI, backed by General Catalyst and Y Combinator, is a high-growth startup applying AI to address the uranium shortage and advance clean nuclear power. The role offers the opportunity to lead ML strategy from zero to one and ship models with.

Head of Engineering at Infilla

As Head of Engineering at Infilla in San Francisco, you will lead a distributed team building agentic AI systems for local governments, including NYC and SF. The role offers a hands-on, player-coach path with a potential technical co-founder partnership to modernize permitting and address housing.

Software Engineer, Backend (Rust) at amo

Software Engineer, Backend (Rust) at amo in Europe. Join an international team in Paris, building high-performance Rust for backend infrastructure and cross-platform mobile logic. This role offers a tangible opportunity to contribute to a fast-moving social platform, with relocation support and nine weeks of vacation.

Founding Engineer at Super44

As a Founding Engineer at Super44, you'll join two exited founders at a pre-seed AI startup in Bonn, Germany. You'll build a multi-modal AI copilot for local businesses, tackling browser automation and multi-agent orchestration. Ship live features daily, earn meaningful founding equity, and help architect the single interface for the local economy.

Software Engineering Manager at Oneiro Solutions

Software Engineering Manager at Oneiro Solutions leads a high-performing team in Edinburgh, UK. You’ll build cloud-native infrastructure to replace legacy banking systems for a fintech platform used by global lenders and borrowers. This role offers a chance to shape technical strategy and scale a critical piece of global financial infrastructure.

Software Engineer, Product at Drillbit

As a Software Engineer, Product at Drillbit, you will lead the deployment of production-grade LLMs and voice AI. Drillbit is a YC-backed startup in Austin transforming the residential contracting market with an AI-driven platform. You will own critical AI infrastructure from day one and contribute to scalable growth.

Founding Platform Engineer at Gozauber

We are seeking a Founding Platform Engineer at Gozauber.com in Berlin. Gozauber.com is an AI-powered startup built by ETH and TUM alumni, creating the production infrastructure for global freight forwarding and founded by the former CTO of a $2.1B digital forwarder. You will own the stack and help shape the digital foundation of a large industry from day one.

Senior Fullstack Engineer at Papayadash

Senior Fullstack Engineer at Papayadash.com in Spain, tackling AI-driven orchestration for global vehicle fleets. This is a rare 0→1 opportunity to own product decisions end-to-end and deploy agents solving high-stakes operational problems for.

Full-Stack Engineer at Juryo

Join Juryo.ai as a Full-Stack Engineer and be the second engineer on the founding team. Based in Barcelona, you will help build an AI-powered operating system for law firms. The role includes founding equity and access to strong backing and resources to reshape a traditional legal market.

Senior/Lead Full Stack Engineer at BoWatt

Lead Full Stack Engineer role at BoWatt in Germany, owning the technical direction of a new product vertical. The position offers high ownership with a 1-2% equity stake and the chance to apply agentic AI to manufacturing at startup speed.

Automation Engineer at Juryo

Automation Engineer at Juryo.ai in Barcelona leads the last mile of implementation, wiring AI agents into legacy databases using Make, SQL, and Python. Juryo.ai is an Antai Ventures-backed startup from the team behind Glovo, building an AI operating system for the legal sector. This is an opportunity to join a fast-growing team at the ground floor and shape how Spanish law firms operate through.

Software Engineer Fullstack at throxy

Software Engineer Fullstack in London at throxy. This role lets you shape foundational systems on a tiny elite team where your code drives revenue.

Founding Engineer at Xylo

Founding Engineer at Xylo in London, joining a team of unicorn-alumni building government software. Xylo aims to replace 1990s legacy systems with AI agents and durable workflows to modernize the public sector. The role offers autonomy to ship product-led solutions that accelerate housing and climate infrastructure, with meaningful equity.

Founding Engineer (Multiphysics & Physics AI) at Gradient Dynamics

Founding Engineer (Multiphysics & Physics AI) at Gradient Dynamics. Gradient Dynamics is a London-based deep tech startup building at the intersection of GPU-native solvers and neural operators. The role offers the opportunity to help build a unified Physics AI platform from the ground up and contribute to sustainable engineering design.

Full-stack Engineer at ManholeMetrics

London-based Full-stack Engineer at ManholeMetrics focused on migrating a mission-critical IoT platform to AWS and Postgres. You will work on real-world telemetry that protects communities, with Python powering data from sensors to the cloud. The role offers meaningful equity in a lean climate-tech startup backed by Imagine H2O and Geovation.

Member of Technical Staff at SketchPro

Join SketchPro.ai as a Member of Technical Staff in San Francisco, CA. You will apply multimodal LLMs to 3D CAD geometry and architectural documentation, building deep integrations with standards like Revit. This in-person role offers a high impact opportunity to help shape the built world, backed by Khosla Ventures, Neo, and the founders of OpenAI and Ramp.

Staff Product Engineer at Attio

Staff Product Engineer role at Attio.com, a remote-first company building a CRM for the AI era. Backed by GV and Redpoint, this position offers the chance to lead technical strategy for a scalable platform used by ambitious GTM teams. It provides equity and a collaborative, remote culture with international off-sites for growth.

Senior Fullstack Engineer at Formula Health

Senior Fullstack Engineer in downtown San Francisco at Formula Health. Formula Health is a startup disrupting a $30B healthcare market by automating personalized medicine, founded by veterans from Eucalyptus and Virta Health. As an early Senior Fullstack Engineer, you’ll own core features, work directly with the founding team, and receive a competitive $180k-$220k salary plus meaningful equity.

Forward Deployed Engineer at Assort Health

As a Forward Deployed Engineer at Assort Health, you will ship production-ready AI voice agents for major health systems. Assort Health, backed by Lightspeed and First Round Capital, builds AI tools to improve patient access across 84+ EHR platforms. Based in San Francisco or New York City, you will have the opportunity to apply engineering solutions to real-world clinical impact.

Founding Engineer / CTO at ZATAR AI

Founding Engineer / CTO at ZATAR AI in London, UK leads the technical vision for an ambient AI startup. You will own low-latency ML pipelines, core architecture, and the live-call intelligence that delivers sub-second ambient insights. The role offers £140k cash plus founding equity and an opportunity to define the next generation of conversational AI.

Founding Product Engineer at Synkka

Founding Product Engineer role at Synkka in London, UK. You’ll join a VC-backed AI logistics startup building the autonomous 'demand engine' for Europe’s €21bn regional carrier market as part of the founding team. The role offers a founding stake and opportunities to architect Python-based agentic AI workflows that identify and close partnerships at scale.

Founding Applied AI Engineer at Echelon AI

Founding Applied AI Engineer at Echelon AI, based in Palo Alto, California. Backed by Bain Capital Ventures and angels from Anthropic and Salesforce, Echelon AI is building autonomous digital workers to transform the $1T IT services market. The role gives you ownership of the core agent architecture and a meaningful stake in a category-defining company.

Founding Engineer at Fragment Data Technologies

Founding Engineer at Fragment Data Technologies in San Francisco. Join a seven-person, fast-moving team building AI agents to resolve procurement failures for Fortune 500 clients and to navigate ERP systems like SAP and Oracle. This 0-to-1 opportunity includes significant equity and the chance to work with founders who have scaled products to over $300M in revenue.

Full Stack Engineer at SignalFire

Join SignalFire in New York as a Full Stack Engineer, working on a Python and Next.js stack. You will build AI-native tools that process millions of patent requests to support IP protection for global enterprises. With 4+ years of experience, this role offers the chance to influence product direction and advance AI capabilities at scale.

Forward Deployed Engineer at Loop

As a Forward Deployed Engineer at Loop in San Francisco, you'll embed with Fortune 100 customers to build the financial nervous system for the physical economy. This engineering-led role offers autonomy to ship impactful software and grow into leadership as.

Software Developer at Spider

Software Developer at Spider in London, UK. Help build a RAG-powered knowledge graph to ground AI in university course materials. Lead the transition from prototype to university-ready pilots, owning the architecture from Next.js to vector search with autonomy.

Engineering Manager at Fonoa

Join Fonoa in London as an Engineering Manager leading a product-focused team in an async-first, distributed environment. The role emphasizes ownership, strong Go and TypeScript engineering, and the chance to solve real customer problems with fast execution.

Senior Full-Stack Software Engineer at Opfyx Ltd

Senior Full-Stack Software Engineer at Opfyx Ltd, building mission-critical features with Rust, gRPC, and Flutter. Opfyx Ltd is an early-stage startup replacing fragmented legacy systems with a unified platform for airlines and airports, piloting at JFK Terminal 7. The role offers high autonomy and the chance to contribute early in the company's growth with equity.

Senior Software Engineer at Nidus

Senior Software Engineer at Nidus in New York. Help architect the software layer of an AI-native factory, collaborating with veterans from defense-tech and AI sectors. This founding-team role offers high ownership and a real-world opportunity to influence autonomous production and robotics.

Founding AI/ML Research Engineer at Generalcatalyst

You will serve as a Founding AI/ML Research Engineer at Generalcatalyst.com in San Francisco, CA. Join an elite team from CMU and IIT Delhi to develop reasoning pipelines and multi-agent systems that automate enterprise tasks. Equity of 0.30% to 1.20% is on offer, signaling a ground-floor opportunity to shape the product.

Nanofabrication Engineer at Piris Labs

Nanofabrication Engineer at Piris Labs, a fast-moving YC W26 hardware startup in San Francisco. You will work with elite facilities, including 120 kV E-beam lithography and advanced photonic tools, to develop the hardware powering AI inference. Whether you are junior or senior, you will collaborate with world-class scientists and shape hardware from first principles in a high-impact environment.

Client Care Executive at Halcyon Doctors Limited

As a Client Care Executive, you will manage critical patient pathways in a remote role for Halcyon Doctors Limited. Halcyon Doctors Limited is a private consultancy specializing in cognitive impairment, working with expert consultants to deliver assessments. This position offers a performance bonus and the opportunity to contribute to meaningful patient care through life-changing assessments.

Founding Engineer at Hinoki

Hinoki is hiring a Founding Engineer in San Francisco to replace 20-year-old security stacks with an AI-native vulnerability brain. Join a five-person team and own core platform infrastructure from day one, including distributed research labs and entity graphs, while building autonomous agents that research, verify, and fix bugs. This role targets engineers with 3-6 years of production AI.

Software Engineer at REVAX TECHNOLOGIES LIMITED

Software Engineer at REVAX TECHNOLOGIES LIMITED in London designs and scales agentic AI systems using LangGraph and Neo4j, owning features end-to-end from RAG pipelines to enterprise-grade GCP infrastructure. The seed-stage startup, backed by top-tier institutions, partners with founders to replace manual tax advisory workflows with structured AI. Ideal candidates have 2-3 years of production.

Product Engineer at Userled

Product Engineer at Userled.io in London, UK, building an AI-native platform that powers go-to-market strategies for global customers. You will own features end-to-end across a stack of Go, TypeScript, and Kafka, processing hundreds of millions of events as part of a fast-growing team. Join an elite engineering team scaling from seven to fifteen, with early-stage equity and the opportunity to.

Customer Director at Faculty

As Customer Director at Faculty in London, you will lead the Life Sciences consulting practice and partner with major pharma companies to scope and deliver AI-driven solutions. Faculty, Europe’s leading applied AI firm now part of Accenture, operates at the frontier of AI and global healthcare. You’ll lead a team of 10 and drive bespoke programs from drug discovery to market access, with a.

Market Research Director at Horizon Strategy

Horizon Strategy, a boutique London consultancy led by veterans of top strategy firms, seeks a Market Research Director to own C-suite relationships and drive £1M+ in revenue. The role focuses on advising on market entry and product innovation for hardware, software, and emerging tech. It offers a rare partner-track path with up to £200k base, uncapped bonuses, and the autonomy to build your.

Full Stack AI Builder at Fleek

Join Fleek as a Full Stack AI Builder in London to ship production-grade agents for a global B2B marketplace. Work with the CTO to build FleekOS and automate the circular economy, owning agentic workflows that tackle real sustainability challenges.

Staff Engineer (Payroll & Data) at Ebury Partners

Staff Engineer (Payroll & Data) at Ebury Partners in London UK, you will own the architecture from HRIS integration to payment execution. Ebury Partners is a Santander-backed fintech building a global payroll engine after a £550M raise and launching an AI-native payroll platform. Join a high-leverage team using AI agents to bridge jurisdiction logic and global payment rails, with experience at.

Agentic Engineer — Full Stack at Objection

Join Objection as an Agentic Engineer — Full Stack in the UK to architect greenfield systems for structured dispute resolution and ELO-rated fact-checking. Objection is an AI-native startup building truth infrastructure for adversarial adjudication at scale, blending deep work with a summit-focused culture. The role offers high-velocity development with three weeks of asynchronous work followed.

AI Engineer at Vega

Join Vega as the first dedicated AI Engineer and own the AI roadmap for AltOS in London, UK. You'll work with a fintech team backed by Apollo and Motive Ventures and alongside alumni from KKR, Goldman Sachs, and Revolut. This foundational role offers autonomy to build multi-agent systems and document intelligence features that modernize workflows in the alternative asset industry.

Engineering Manager at AngelList

Engineering Manager to lead AngelList's Accounting squad in San Francisco. AngelList operates a platform that processes the full $15.4B of activity and supports 57% of top-tier U.S. VC deals and over 300 unicorns. You will lead a high-trust, high-ownership team of ex-founders and elite engineers with fintech or payroll experience, with a compensation package of $240k+ plus equity.

Software Engineer at Altara

Altara is hiring a founding-level Software Engineer to join a small San Francisco team. Backed by Greylock and AI leaders, Altara is building a scientific intelligence platform to accelerate breakthroughs in batteries, semiconductors, and aerospace. You will architect systems that extract structure from large R&D data, contributing from the ground floor to shape the company's early trajectory.

CAD Integration Engineer at Drafter Inc.

CAD Integration Engineer at Drafter Inc. in San Francisco, CA. You will own the CAD and PLM integrations that bridge legacy design tools with automated production. Join a founding team at a high-growth startup, using Python, React, and Three.js to accelerate mechanical engineering and support robotics, space, and medical device projects.

Senior Computational Geometer at Drafter Inc.

Senior Computational Geometer at Drafter Inc., San Francisco, CA. Drafter Inc. is an AI-driven startup that automates mechanical engineering for rockets, robotics, and medical devices and is building a core geometry engine. Lead development with deep C++ and CAD kernel expertise to tackle complex B-Rep and topology challenges as part of a founding team at the intersection of AI and physical.

AI Engineer at Tuza

Join Tuza as an AI Engineer in London, UK. Tuza is a fintech backed by Northzone and Connect Ventures. You will own the data stack and build production-ready LLM pipelines with LangChain and Python to automate large-scale banking processes.

Founding AI Engineer at Modos AI Inc

Founding AI Engineer at Modos AI Inc in San Francisco, CA. You will help build the first connected-data intelligence platform for enterprise transformation. The role offers founding-level equity and the opportunity to deliver production systems with auditable AI output for large enterprises.

Founding Machine Learning Engineer at Withshepherd

Founding Machine Learning Engineer at Withshepherd.com in San Francisco, you will be the company's first ML hire and help shape the product. You will lead the move to autonomous underwriting for high-hazard sectors like data centers and renewable energy. With 4+ years of production ML and LLM experience, you will build the risk infrastructure that translates unstructured data into underwriting.

Full-Stack Engineer at Calibre

Calibre is hiring a Full-Stack Engineer in London, UK. This role offers the opportunity to learn the Palantir playbook and own impactful work that underpins global commerce from the ground up.

Full-Stack AI Engineer at Greylock

As a Full-Stack AI Engineer at Greylock, you’ll design and implement AI-driven workflows. Greylock is a prestigious venture capital firm with early bets on Airbnb, LinkedIn, and Discord, and you’ll be its first engineering hire in San Francisco. You’ll own the technical roadmap and build high-leverage AI tools to automate market research and due diligence.

Founding AI Engineer Intern at Frances

The role is a Founding AI Engineer Intern at Frances in San Francisco, CA. Frances is a startup focused on AI-driven hospitality that connects digital agents with physical kitchens. The position offers high ownership to design and ship end-to-end features while engaging with users in their homes to guide product development.

Senior Engineer at Pickaxe

Senior Engineer at Pickaxe.co in San Francisco will ship production code daily while transitioning into a CTO track within six months. Pickaxe.co is a Spero Ventures-backed startup building a no-code platform for AI agent businesses. This role offers a fast-track path to a CTO position and a chance to work at the intersection of generative AI and the creator economy.

Senior AI Solutions Engineer at Turing

As a Senior AI Solutions Engineer at Turing in San Francisco, you will serve as a founding field engineer for the Software Engineering domain. You will partner with frontier AI labs to architect datasets and benchmarks used to train next-generation code models. The role offers the opportunity to help define the pre-sales playbook from scratch with an OTE up to $400k.

Founding Software Engineer at Origin Therapy

Founding Software Engineer at Origin Therapy in San Francisco, CA. Help build AI-powered billing and documentation tools to enable therapists to start their own practices and increase care capacity. Own 0→1 product decisions and ship daily in a mission-driven, in-person environment to shape the company from the ground up.

Software Engineer at Opfyx Ltd

Software Engineer at Opfyx Ltd in London, UK. Opfyx is a venture-backed startup with bases in London and New York, building a mission-critical platform for global airports and airlines. You'll work in a small elite team led by an Apache Arrow contributor, using Rust and Flutter, with meaningful EMI equity and high ownership.

Senior Software Engineer at Truewind

Senior Software Engineer at Truewind in San Francisco will build AI-native, full-stack software with LLM-driven workflows for financial data and reporting. The YC-backed Truewind is developing AI-powered financial infrastructure to automate bookkeeping and financial reporting. The role offers substantial equity and an opportunity to help lead the technical strategy at the company.

Founding Engineer at Proximitty

Founding Engineer role at Proximitty in San Francisco, a YC-backed fintech building autonomous lending agents for commercial credit. Join a pedigree team from Bloomberg and McKinsey to build self-evolving AI infrastructure for the largest US banks. As the first engineer, you’ll own 1-2% equity as Proximitty scales toward 7-figure ARR.

Principal Machine Learning Engineer at Speechmatics

As a Principal Machine Learning Engineer in London, UK, you will bridge research and production. You would join Speechmatics, a leading company in Speech AI. This role offers the chance to define the technical vision and build scalable self-supervised models for speech recognition.

Senior Backend Engineer at Caplight

Senior Backend Engineer role at Caplight, a cash-flow positive seed-stage fintech marketplace in San Francisco. You will own core systems, build AI-native data pipelines, and ship products for institutional trading. This position offers the chance to contribute to a fast-growing platform trusted by major investors.

Wet Lab Scientist/Enzyme Engineer at Ligo Biosciences

Join Ligo Biosciences in San Francisco as a Wet Lab Scientist or Enzyme Engineer. Lead enzymatic assay development and protein engineering workflows powering our high-throughput DNA-writing platform. This fast-paced startup role offers the opportunity to contribute to cutting-edge synthetic biology within the local biotech ecosystem.

Product Engineer at AUAR

Join AUAR as a Product Engineer in London, blending full-stack TypeScript/React development with robotics. Work onsite at an 11,000 sq ft R&D facility to build interfaces and AI logic for automated timber MicroFactories. This role offers the opportunity to ship software that directly drives hardware in real-world production.

Senior Full Stack AI Engineer at Taste

Taste is seeking a Senior Full Stack AI Engineer. The role is based in San Francisco, CA, focusing on personalized design and image generation. This is an opportunity to lead the development of AI tools that connect complex models with intuitive user experiences at a high-growth startup.

Senior AI Engineer at Chip Financial

Senior AI Engineer at Chip Financial Ltd in the UK, you'll design and productionize bespoke multi-agent architectures for 400k+ users. Chip Financial Ltd is a fintech leveraging AWS AI services and pursuing high growth. The role offers an opportunity to define technical standards and shape the future of wealth management at scale.

Platform Engineer at Model ML

As a Platform Engineer in London at Model ML, you will architect the cloud infrastructure powering AI workflows. The role offers a high-impact opportunity to own the Azure and Kubernetes stack and drive SOC 2 readiness.

Mid-Senior Full-Stack Engineer at Mintstars

Mid / Mid-Senior Full-Stack Engineer role at Mintstars.com in London, UK. Backed by Polygon and Escape Velocity, you’ll work on creator monetization and B2B payments infrastructure using a React/Node.js/tRPC stack. Own features end-to-end with meaningful equity and the chance to tackle hard problems in Shoreditch.

Senior Software Engineer at Caura

Based in London, Caura.com is seeking a Senior Software Engineer to own the backend architecture. Caura.com, a London-based startup, partners with Lloyds Banking Group and Motorway to simplify car management. You'll build scalable, event-driven systems using TypeScript, Node.js, and AWS and have the chance to influence the future of UK driving.

Systems Engineer at Harmonic Security

The Systems Engineer role at Harmonic Security Inc. in London focuses on building the agent architecture to protect enterprise data in real time. Harmonic Security Inc. is pursuing a new category of AI security and is backed by $25M from top-tier VCs. This fast-scaling startup offers the opportunity to work with Rust in the OS and develop high-performance, cross-platform software.

Staff Backend Engineer at Fleek

Staff Backend Engineer for Fleek's Growth squad in Shoreditch, London, UK. Fleek is led by a former Google and Postmates engineering leader and is building a platform that scales to millions of unique items. The role offers architectural ownership and a chance to help shape the future of B2C marketplaces at scale.

Founding Engineer at Generalcatalyst

Founding Engineer at AgentMail in San Francisco, you will help build the 'Gmail for AI Agents'. The company has a founding team from Optiver and NVIDIA and is growing quickly to define the agent communication layer. This 0-to-1 role offers equity and the opportunity to tackle core distributed-systems challenges.

Founding Engineer at Fancysauce

Founding Engineer and second hire at Fancysauce Inc., focusing on AI-native cost management and owning core platform verticals. The company is based in San Francisco and backed by Afore Capital and angels from OpenAI and Gemini. This role offers ownership of critical systems, daily shipping with TypeScript and React, and a chance to shape engineering practices.

Senior Frontend Engineer at Deducta

Senior Frontend Engineer role at Deducta in London, UK. Deducta is a London-based AI startup founded by ex-Spotify and GoCardless leaders. Join as an early team member to own the frontend of a data intelligence platform for global enterprises.

Forward Deployed Engineer at Claimsorted

Join ClaimSorted in London as a Forward Deployed Engineer. Collaborate with a team that includes veterans from Meta and Scale AI to build mission-critical insurance systems. Own the customer-facing engineering roadmap and help scale a YC startup from the ground up, with visa sponsorship available.

Senior Software Engineer at UnlikelyAI

Senior Software Engineer at UnlikelyAI in London. UnlikelyAI combines generative AI with proprietary symbolic reasoning to deliver deterministic, explainable outcomes for regulated industries. Join a team of experts from Google, Amazon and Imperial College to tackle novel algorithmic challenges at the intersection of classical AI and modern LLMs during a scaling phase.

Senior Software Engineer at Thriva

Senior Software Engineer at Thriva Limited in London, UK, focusing on Rails and AI-driven workflows. Thriva is building personalized healthcare solutions to close the gap between lifespan and healthspan. This role offers high autonomy and the opportunity to shape products that help people live healthier lives.

Product Engineer at Sektor

Product Engineer at Sektor in London, an early full-stack role. Own features from user problem to shipped solution in a high-trust, fast-paced London team, with equity.

Senior Backend Engineer at Sektor

The role is Senior Backend Engineer at Sektor in London. You will own the orchestration layer for heavy industry software roll-outs, designing DAG-based workflows and AI configuration agents. This is a chance to build a foundational platform at a mission-driven company and advance your Python expertise.

AI Engineer at Vibecode

AI Engineer at Vibecode in New York. Join a seed-stage team building Vibecode's core coding agent along with engineers from OpenAI and Google. The role offers up to 2% equity to help advance human-computer interaction.

Engineering Lead at Ben

Engineering Lead (equity) at Ben in London, UK. Lead a squad of 4-8 engineers, staying hands-on while driving AI-native workflows in a fast-paced fintech environment. Build the global infrastructure for employee benefits and scale a product used by 300k+ users worldwide.

Founding Product Engineer at Nexcade AI

Founding Product Engineer at Nexcade AI in London, UK. You'll work directly with the founders to ship full-stack AI features that transform logistics and automate freight-forwarding for enterprises like XPO.

Engineering Lead at Attio

Engineering Lead at Attio.com in London, responsible for building the GTM infrastructure and spending about 80% of your time coding on a high-scale stack. The role offers ownership of critical architecture and mentorship of a small elite team, shaping the company's next phase of.

Founding Engineer at VizCo

Join VizCo as a Founding Engineer in San Francisco to build the governance layer for enterprise AI. VizCo, backed by Entrepreneurs First and led by Stanford HAI PhDs, enables regulated organizations to safely use ChatGPT and Claude through deep Microsoft and Google ecosystem integrations. This high-equity, C-suite trajectory role is suited for a full-stack generalist ready to tackle AI.

Forward Deployed Engineer at Console

As a Solutions Engineer at Console.com in San Francisco, you will own the full customer lifecycle—from architecting AI workflows and shipping integrations to guiding CIOs. Console.com builds AI agents that autonomously resolve IT, HR, and Finance requests for customers such as Databricks, Figma, and Cursor, and is backed by Thrive Capital and DST Global. This role offers the opportunity to help.

Founding Engineer at Muro AI

Founding Engineer - Full Stack at Muro AI in San Francisco. You'll build AI agents to turn weeks of manual bid work into hours and own an end-to-end platform from Electron apps to database architecture in the construction industry. The role offers significant equity and a $200K+ total compensation package at a high-growth startup.

Fullstack Tech Lead at Nourish Care Systems

Take on a Tech Lead - Fullstack Developer role at Nourish Care Systems Limited in the UK, with 70% hands-on work on a stack including Ruby on Rails, Vue.js, and AWS. Nourish Care is the UK's leading digital care management platform, backed by Livingbridge and trusted by the NHS to replace fragmented paper systems. This remote-first role offers mentoring and the chance to build scalable,.

Founding Engineer - Backend & Data Platform at Greenline

Founding Engineer, Backend and Data Platform at Greenline. Greenline is building data infrastructure to make homeownership accessible to 16.5 million self-employed Americans. This remote senior/staff IC role offers high autonomy to architect a greenfield data platform from scratch and deliver high-impact code.

Forward Deployed Engineer at Authsignal

Forward Deployed Engineer (£60-75k) at Authsignal Ltd in the UK. You will own the growing EMEA region, guiding major financial and healthcare clients through technical integrations while building SDKs and developer resources. The role sits at the intersection of engineering and customer success, offering a path to influence passwordless authentication across Europe.

Product Engineer at Keith

Join Keith as a founding Product Engineer to build the world's first AI-native regulated law firm. Backed by £2M from leading UK VCs, Keith aims to disrupt the £19B legal market by automating 80% of the conveyancing process. In London, UK, this role offers a substantial equity stake for a React and TypeScript expert who wants to shape an industry from the ground up.

Security Engineer at Incident

Join Incident.io as their first Security Engineer and shape the security function from the ground up. The role offers £110K–£200K plus equity and the chance to build, coach, and scale security for a fast-moving platform.

Product Engineer at Allied

We are hiring a Product Engineer at Allied in London. Allied is reimagining the defence industrial base with AlliedOS, an AI-native operating system that links the frontline to the factory floor. The role offers meaningful equity and a high-autonomy environment to ship critical technology.

Product Engineer at Gaia.family

Product Engineer at Gaia.family in London, UK, building the financial infrastructure behind IVF access. This role offers the chance to contribute code in TypeScript and Python within a small, high-growth team solving a significant healthcare financial challenge.

Senior Fullstack Engineer at Midnite

Senior Fullstack Engineer to lead Midnite's new AI and Back Office team in a UK-remote role. The position combines hands-on development with leadership to build a greenfield internal platform and apply AI across the business.

Senior Backend Engineer at Midnite

The role is Senior Backend Engineer for the Casino UX team at Midnite in the UK. You will build high-throughput APIs and real-time systems for a betting platform handling massive traffic spikes.

Lead Backend Engineer at Midnite

Lead Backend Engineer at Midnite to spearhead a brand-new AI and Back Office team. The role requires 7+ years of Python experience and a track record of productionizing LLM-driven tools.

Founding AI Engineer at Pharosyn

Pharosyn is hiring a Founding AI Engineer in Central London to build real-time AI systems for competitive intelligence in pharma and biotech. Backed by Entrepreneurs First, this pre-seed startup replaces manual analyst work by monitoring clinical trials and regulatory filings with LLM-powered software. The role offers direct product ownership, meaningful equity, and the opportunity to join a.

Software Safety Engineer at Scarlet

As a Software Safety Engineer at Scarlet in London, you’ll assess safety-critical software and regulate medical AI, from LLMs to cancer diagnostics. Scarlet is a Creandum-backed authority authorized by governments to certify cutting-edge medical AI. Join a high-growth London team to shape safe, effective medical AI for patients worldwide.

AI Product Engineer at yhangry

Full Stack Engineer at yhangry in London, UK. Join as a founding-style engineer to rebuild the UK's largest private chef marketplace into an AI-native platform. Backed by Y Combinator and featured on Dragons' Den, the role offers equity and a chance to shape a scaling marketplace.

Founding Full Stack Engineer at NELP

Join NELP as a Founding Full Stack Engineer in San Francisco, CA, and own the full tech stack, from AI-driven workflows to hospital data models. NELP is building the definitive system of record for nursing excellence to improve nurse retention and patient care. Founding-team equity and the chance to work with the CEO enable you to ship code quickly and make a real impact.

Founding Engineer - AI at Muro AI

Founding Engineer, AI at Muro AI in San Francisco leads production AI efforts and owns the stack from computer vision to Procore integrations. Backed by the same VCs behind PlanGrid, Muro AI targets the $13 trillion pre-construction market with agentic workflows. This is a growth opportunity for someone with 4+ years shipping production AI to own end-to-end systems and automate bidding.

Product Engineer at Incident

Incident.io is hiring a Product Engineer in London to help shape the future of incident response. You will work closely with customers, ship features daily, and have the opportunity for significant equity upside.

Senior Product Engineer at Attio

Senior Product Engineer (Backend) at Attio.com, a remote role. Attio is building the CRM for the AI era, backed by GV and Redpoint and led by former Google and Snyk leaders. You'll work on high-scale TypeScript/Node.js features for a platform processing 250k+ events per minute, with equity.

Senior Full Stack Engineer at LendView,

Are you a Senior Full Stack Engineer ready to step into a potential CTO role? This UK based fintech is replacing the manual spreadsheets of property lending with an AI native operating system. As the sole engineer working directly with the CEO, you will own the entire technical direction, from building complex financial calculation engines to deploying AI document extraction layers that cut funding times by half. If you have 5+ years of TypeScript experience and a background in fintech, this is your chance to lead the transformation of a massive traditional industry with full technical autonomy.

Head of Engineering at Duckbill

Tired of solving the wrong problems in cloud cost management? Join a seed stage powerhouse backed by Uncork and Heavybit that is redefining how the Fortune 500 handles cloud financial data. We've spent seven years researching this problem and are now building the definitive platform to solve it. We're looking for a Head of Engineering to lead the charge—this is a hands on builder role where you'll ship daily, design architecture for 50x scale, and recruit a top tier team in San Francisco. If you thrive on hard data problems and high autonomy, this is your next career defining move.

Founding Engineer at Corveris

Join a high caliber founding team, including an ex Palantir Tech Lead and a veteran detective, to rebuild the intelligence layer for public safety. This South Park Commons backed startup is replacing legacy paper based reporting with AI that interviews citizens and extracts actionable leads for law enforcement. As a Founding Engineer in San Francisco, you’ll earn $180k $220k plus significant equity while architecting RAG pipelines and core systems that directly impact community safety. If you are a full stack builder with a product mindset and a desire to solve high stakes, real world problems, this is your chance to shape a company from the ground up.

Mobile Software Engineer at Cauli

Join the UK's largest reusable packaging provider and help eliminate the 10.7 billion items of packaging waste generated annually. Led by a Forbes 30 Under 30 founder, this climate tech startup is looking for a Mobile Engineer to own their Kotlin Multiplatform migration and build the IoT driven infrastructure that makes reuse as easy as throwaway. With 1.6 million pieces of waste already prevented and major clients like the NHS and BT on board, you'll join an ambitious team where your code has a measurable environmental impact and you'll receive meaningful early stage equity.

AI Engineer at Stackfix

Bridge the gap between frontier AI and the real economy. This Tier 1 VC backed startup, led by founders who sold companies to TikTok and in the HR tech space, is hiring an AI Engineer to deploy production systems for PE funds and global manufacturers. Forget building another SaaS wrapper—you’ll be working from a private Holborn office to build AI that automates factories and services firms. With an £85k+ salary, significant equity, and direct mentorship from repeat founders, this is the ultimate training ground for future entrepreneurs who want to master the actual application of AI in industry.

Lead Backend Engineer at LightWork AI

Join a high growth London AI startup as the Lead Backend Engineer and build the operating system for modern property management. Working alongside ex Revolut and Cambridge alumni founders, you will shape a category defining platform from its earliest stages, leveraging Node.js and TypeScript to build mission critical systems that solve massive real world problems. This is an elite opportunity for a senior leader to define the technical backbone of a future unicorn.

AI/ML Engineer at Known

Are you tired of building internal tools or ad tech? Join a $10M seed stage consumer AI startup backed by Forerunner and NFX that is completely redesigning modern dating. As an early AI/ML Engineer, you will own the core matching engine for a voice first platform where users spend 27 minutes per day interacting with the AI. We are looking for engineers who helped scale recommendation systems at companies like Instagram or Tinder and want to do it again from the ground up. This is a rare chance to work on a product where your models are the entire user experience, offering a $250k $400k base plus significant equity in San Francisco.

Product Engineer at Y Combinator

Join an elite 18 person engineering team building the operational backbone for the world’s most influential startup accelerator. This isn’t your typical engineering role—there are no PMs or designers, giving you total ownership of the products that power the admissions and growth of companies like Stripe and OpenAI. With a compensation package reaching $500K plus profit sharing, you'll build AI native systems, automate high stakes workflows, and work alongside the partners who have launched a $600B+ portfolio. If you are a former founder or product minded engineer who loves shipping end to end, this is the most high leverage seat in the startup ecosystem.

Software Engineer at Strala

Join a hyper growth AI startup that is rebuilding the $300B insurance industry from the ground up. We are looking for elite engineers—think ICPC winners and ex HFT builders—to own core infrastructure and ship production grade AI pipelines. If you want to work in a high intensity environment with world class talent, zero barriers to productivity, and massive equity upside, this is the role for you.

Backend Engineer at Proveden

Are you ready to build the infrastructure behind real time voice interpretation? We are looking for the second backend engineer to join a technical founding team in London. This isn't just word for word translation; it's a platform that preserves tone and meaning instantly. You’ll have a seat at the table to design a unified AI API, handle high concurrency systems on Azure, and build the billing and data pipelines from scratch. If you have 4 8 years of experience and thrive in a high autonomy environment where you own the architecture, this is your chance to solve one of the hardest problems in voice AI.

Fullstack Engineer at NAVI Labs

Are you a sharp Fullstack Engineer ready to build the future of decentralized finance? Join the most trusted DeFi infrastructure protocol on Sui, currently scaling with over $400M TVL and 900k users. This is a rare greenfield opportunity to join a lean 15 person engineering team where you’ll own product lines from scratch—not just maintain legacy code. Whether you're a crypto native or a Web2 expert looking to break into DeFi, you'll work alongside industry leaders backed by OKX Ventures and Hashed to ship high performance financial tools at massive scale.

AI Growth Engineer at SignalFire

Join the first VC firm built like a technology company and lead the charge in building AI agents that power the future of venture capital. With $3B in assets under management and a proprietary platform tracking 650M employees, you'll work alongside an elite team of former Meta and Google engineers to define how AI sources and scales the next generation of startups. This isn't just a maintenance role; you'll have the budget and autonomy to build a production AI roadmap from scratch at the intersection of technology and finance.

Software Engineer at Adamo

Join an elite team of three building the high performance data layer for the robotics revolution. This London based startup has bypassed WebRTC to build a custom sub 40ms latency streaming protocol from scratch, enabling real time remote control of humanoid robots and autonomous vehicles globally. If you are a systems engineer who obsessively optimizes for every millisecond and wants to own the infrastructure connecting humans to robots, this is your chance to join a venture backed company at the ground floor.

Senior Mechanical Engineer at Rivan Industries

Are you a hands on engineer ready to build the hardware that replaces fossil fuels? This seed stage synthetic fuel startup in London is hiring a Senior Mechanical Engineer to own the design and manufacture of entire sub systems from scratch. Working alongside a high intensity team of Imperial and Cambridge engineers, you'll apply first principles thinking to make clean energy cheaper than dirty fuel. With a £70k £90k salary, significant equity, and a unique £6,000/year housing subsidy to live near their Bermondsey HQ, this is a rare opportunity to lead mission driven engineering where it matters most.

Technical Lead / CTO at Fortalis

Are you ready to build the software layer for national resilience? This early stage London startup is seeking a Technical Lead / CTO to architect a platform that integrates cyber, physical, and information signals for high consequence environments. As the first technical hire, you will own the entire stack from a blank slate, working alongside the CEO to solve fragmented security challenges for critical infrastructure. If you have 5 10 years of experience building complex distributed systems and want a role with co founder level equity, this is your chance to build something that truly matters.

Founding Engineer at Aglide

Join a YC S23 backed startup as a Founding Engineer building the future of enterprise browser automation. This London based role gives you the chance to secure mission critical workflows for decacorn financial firms and public insurance companies. You’ll be part of a high caliber team of four, inventing the playbook for browser using agents while working across Electron, TypeScript, and end to end encrypted infrastructure. If you thrive on high ownership, ship to production in days, and want to solve novel security challenges that affect global organizations, this founding role offers significant equity and a path to San Francisco.

Founding Engineer at Forgepoint

Help rebuild the $3 trillion American manufacturing base as a Founding Engineer at this a16z backed startup. Led by the former Head of Engineering at Brex and a manufacturing expert from Bain, the team is building AI agents that turn weeks of manual back office work into minutes. With heavy demand from paying customers and backing from founders at Brex and Betterment, this is a rare 0→1 opportunity for a high ownership engineer to ship core AI features and visit the shop floors where their code makes a real world impact. Join an elite 6 person team in NYC and architect the future of industrial software.

Full Stack Engineer at Aisy

As a core Full Stack Engineer, you'll build an AI engine that uses real attacker logic to solve the $17B vulnerability management problem. Working directly with the founder in London, you will own ML pipelines and product features, moving beyond basic API calls to train models that identify critical exploit paths. This is a high ownership role for an engineer with 2 6 years of experience who wants to build the future of automated cyber defense alongside world class advisors from DeepMind and 1Password.

Platform Engineer at Duckbill

Join a stealth mode startup founded by the industry's most recognized cloud cost experts. As a Platform Engineer, you'll own the data infrastructure for a consumption first platform that turns terabytes of messy billing data into million dollar financial decisions. With a built in audience of 35,000+ subscribers and a direct line to Fortune 100 procurement teams, this company is uniquely positioned to dominate a $47 billion market. If you're a Python and SQL expert who thrives on autonomy and wants to build a world class data product from the ground floor in San Francisco, this is the career defining role you've been looking for.

Founding Scientific AI Product Engineer at Pharosyn

Are you tired of manual competitive intelligence and ready to build the future of pharma research? This London based startup, founded by Cambridge AI experts and backed by Entrepreneurs First, is hiring a Founding Product Engineer. You will leverage agentic AI to automate clinical and regulatory monitoring for major pharma enterprises. If you have 2+ years of experience in life sciences strategy and a passion for LLMs, join this founding team to replace manual triage with real time intelligence and earn meaningful equity in the process.

Network Software Engineer at Blaxel

Most cloud networking teams spend their days maintaining legacy stacks—at this First Round backed startup, you'll build a global SDN from scratch. We are architecting the first AI native cloud, optimized specifically for the stateful, ultra low latency demands of agentic AI. If you are a systems focused engineer with deep expertise in Rust, Go, and low level networking primitives like eBPF and DPDK, this is your chance to outpace the major clouds. Join a founding team that has already built and sold a major cloud platform as we scale to billions of requests. $250k $300k + significant equity.

Founding Software Engineer at Joinkyber

Commercial aviation loses $15 billion a year to ground delays, and you can build the engine that fixes it. Join a pre seed startup backed by Entrepreneur First as their first engineering hire to own the real time orchestration layer for airport operations. This isn't just another dashboard—it’s a deep systems challenge involving state machines, resource allocation logic, and dependency aware recomputation. Work alongside ex F1 and aviation operations experts to turn noisy live signals into deterministic decisions that keep global flight networks moving. If you’re a backend expert in TypeScript or Python who wants true employee 1 ownership, this is the rarest systems problem in London.

Founding Engineer at nettle

Join a high growth London startup as employee 7 and help rebuild the trillion dollar commercial insurance industry from the ground up. Backed by Project A and executives from Allianz and SwissRe, this role offers the rare chance to lead AI engineering and enterprise deployments for global insurers. You'll work directly with ex QuantumBlack founders to ship agentic AI workflows that turn weeks of manual risk assessment into minutes. If you are a senior engineer with 7+ years of experience who thrives on ownership and wants a career defining equity stake, this is the launchpad you've been looking for.

Senior Software Engineer at Humaans

Humaans is redefining the operational layer of the workplace with Athena, a sophisticated AI orchestration platform. Backed by Y Combinator and the founders of Slack and Figma, they are seeking a Senior Full Stack Engineer in London to help build the next generation of HR infrastructure. You'll work directly with founding engineers in a high bar environment that rewards product ownership and technical excellence.

Full-Stack Engineer at Solveintelligence

Join the fastest growing AI startup in the legal space as a Full Stack Engineer in London. This $55M VC backed rocketship is hitting 8 figure ARR with 20 30% MoM growth and is backed by the founders of Stripe, Perplexity, and Hugging Face. You'll work alongside an elite team of PhDs to build the scalable foundations of a platform used by top global firms. If you have the raw intelligence and builder mentality to ship code that transforms a $200B industry, this is your chance to secure life changing equity and foundational impact.

Lead Data Engineer at LightWork AI

Are you ready to own the data layer for a category defining AI platform? This London based startup is automating the £33B property management industry with an autonomous AI agent already managing 14,000 units. As the first Lead Data Engineer, you'll report to a Head of Engineering who has scaled departments to 140 people and through $35M rounds. You will move the product from static data to dynamic, real time intelligence by building the pipelines and vector infrastructure that power Felicity's brain. If you're a Python expert who thrives on building from scratch, this foundational role offers massive equity and the chance to shape the future of PropTech.

AI Engineer at BUILD,

Join an elite team backed by Index Ventures and leaders from OpenAI to build the agentic AI stack for the built world. This San Francisco based startup is already at 7 figure revenue, automating trillion dollar real estate workflows that used to take weeks down to hours. As a generalist AI Engineer, you will own the end to end development of production grade agents using LangGraph and Python. If you want radical autonomy, 0.3 1% equity, and the chance to solve hard, unsolved problems at the intersection of AI and physical infrastructure, this is your chance to do your life's work.

Head of Engineering at BUILD,

Are you ready to own the technical evolution of the $300T built world? This Index Ventures backed startup, supported by leaders from OpenAI and Blackstone, is hiring a Head of Engineering to lead their agentic AI platform. You will build and lead an elite engineering team in SF or NYC, architecting systems that deliver results 90% faster than humans for the world's largest asset managers. If you have scaled vertical AI systems and crave radical autonomy, this is your next career defining role.

Staff Software Engineer at Parafin

Small businesses power the economy, but traditional banks often fail them. This market leading embedded lending platform is changing the status quo, processing billions of data points through AI powered underwriting to provide instant financial tools via partners like Amazon and DoorDash. If you have 6+ years of experience and want to join a lean, elite team of engineers from Robinhood and Stripe, this is your chance to build infrastructure that moves real money for hundreds of thousands of businesses.

Backend Engineer (AI Agents) at Maze

Are you tired of building simple LLM wrappers and ready to build true autonomous agents? Maze is hiring a Backend Engineer to lead the development of AI agents that proactively resolve cybersecurity threats for Fortune 200 companies. You'll own the architecture, work with an elite engineering group, and ship production grade AI that solves real world security challenges at scale.

Founding Engineer at Fig AI

Food manufacturing is a $750B industry still running on pen and paper. As a Founding Engineer, you'll work directly with a pedigree team of Stanford MBAs and industry veterans to build RAG systems and computer use agents that handle everything from complex compliance to sales discovery. If you're a pragmatic builder who wants to trade architectural debates for high impact shipping and meaningful founding equity, this San Francisco based role is your chance to own a massive vertical from day zero.

Founding Engineer at Forgis

Are you a high achieving engineer looking to build from the ground up? Forgis is hiring a Founding Engineer in Zurich to lead the development of their core platform. Working with a team of former founders and Olympiad competitors, you'll own production services across a Python/React stack. If you have a top tier academic background and a passion for scaling reliable systems, this is your chance to shape the future of a high growth startup in one of Europe's most vibrant tech cities. Relocation to Switzerland required for this high impact, in person role.

Founding Engineer at Gozauber

Join Gozauber.com as a Founding Engineer and build the next generation of AI powered logistics systems alongside the co founder of Forto. Backed by top tier European VC funds and already live with global industry leaders, this role offers a rare opportunity to shape the core infrastructure of global trade. You will build autonomous AI agents, enjoy top of market equity, and participate in annual 4 week working residencies in San Francisco. If you are a high agency engineer ready to move past demos and into production grade AI, this is the career defining role you have been looking for in the heart of Berlin.

Member of Technical Staff at Mantic

Join the team behind the world’s most accurate AI forecasting system, recently ranked 4th out of 500+ competitors in the Metaculus Cup and recognized by Polymarket as a market leader. As a Member of Technical Staff, you will build sophisticated LLM agents to solve judgmental forecasting in geopolitics and economics, pushing the frontier of machine reasoning alongside world class researchers. If you are a high achieving coder with a passion for statistics and LLM scaffolding, this is a unique chance to solve one of AI's most exciting problems.

Partner at Saturnos

Join the UK market leader in AI powered financial advice as a Partner. You will own high stakes enterprise relationships with national wealth management networks and PE backed consolidators, driving a mission to democratize financial advice for one billion people. If you have 4 8+ years of enterprise SaaS experience and want to shape a category defining fintech, this London based role offers the autonomy and equity to build your life's work.

AI Engineer at Electric Twin

Join an elite team in London building the future of audience intelligence. Founded by the UK PM’s former Chief Data Adviser, they are looking for an AI Engineer to design the cognitive architectures and memory systems that bring these agents to life. If you have a background in human behavior research and hands on LLM engineering, this is a rare chance to work on technology validated by the LSE that is already transforming how global brands like News UK make decisions.

Software Engineer at Fanvue

We are looking for a high potential Software Engineer (1 4 years experience) with exceptional raw ability to join our remote friendly team. You'll own greenfield projects across a TypeScript/Node.js stack, leverage AI coding assistants like Cursor to ship at lightning speed, and build features reaching 17 million monthly users. If you're a high agency builder who thrives on hard problems and rapid iteration, this is your chance to scale with a company growing 450% year over year.

Founding Product Engineer at cubic

Join an elite team of four ex founders building the world's first AI native replacement for GitHub. Fresh off a high profile seed round from Sequoia India and Vercel execs, this startup is growing 50% MoM and already powers the workflows of top engineering teams like n8n and the Linux Foundation. As the first Founding Product Engineer in London, you will have total autonomy to define a new product category, working with a cutting edge stack (Next.js, Vercel AI SDK, Modal) to rethink how software is built when AI is writing the code. If you have 5+ years of experience and the pragmatism to be your own PM, this is a career defining opportunity to impact billions of users.

Founding Engineer at Nero

Join a lean team of six as the first engineering hire at a profitable pre seed startup backed by Yamaha Music Innovation Fund. This company is building the monetization infrastructure for the livestreaming era, already processing $500k in GMV monthly and serving 600k+ users. You'll work directly with the CTO to architect real time systems and fan CRM tools that help creators monetize their audiences on Twitch, Instagram, and TikTok. If you're a high velocity full stack engineer who loves music and wants a significant equity stake in a fast growing, profitable venture, this is your chance to shape the future of creator engagement.

Senior Backend Software Engineer at Fleek

Join an a16z and YC backed startup that is fixing the world's most broken supply chain by digitizing the $350B secondhand fashion market. Working directly under a CTO from Google and Postmates, you'll build the AI native backbone for a platform that has already saved 9 million items from landfills and is tripling in size annually. This is a rare opportunity for a Senior Backend Engineer to own the entire ecommerce journey—from discovery to global payments—while integrating proprietary AI models into a high scale B2B marketplace.

Senior / Staff Product Engineer at Evervault

Join an elite team of 25 building the critical encryption layer for the world's most successful fintechs. As a Product Engineer, you'll own the design and implementation of core payments infrastructure—from card tokenization to network integrations—using Rust and TypeScript. If you have a passion for developer experience and want to ship code that secures millions of transactions for companies like Ramp and Rippling, this is your opportunity to have massive impact in a high growth environment.

Senior Full-Stack Product Engineer at Arva AI

Financial crime compliance is a multi billion dollar bottleneck, and this YC S24 startup is using AI to automate it. Backed by Google's Gradient Ventures, they are hiring a Senior Full Stack Product Engineer in London to build AI agents that handle document fraud and KYC reviews. You'll work directly with ex Revolut and ex Google founders, owning everything from the React frontend to model fine tuning. If you want to move with "relentless urgency" and see your code impact global banks within days, this is the place to do it.

Full Stack Engineer at Tengo

Tengo is transforming the massive €500M/day public tender market by building an AI powered operating system for winning contracts. Born out of the legendary Hexa studio (Aircall, Front) and backed by a €3M seed from Point Nine, this is a rare opportunity for a Full Stack Engineer to join an elite early stage team in Paris. You'll move absurdly fast, shipping RAG workflows and high end collaborative tools that turn weeks of paperwork into minutes of AI driven productivity. If you're a product minded builder who thrives on ownership and high velocity shipping, Tengo is where you belong.

AI Engineer at Solveintelligence

With 8 figures in ARR and 30% month over month growth, we are looking for a brilliant AI Engineer to build proprietary LLM algorithms that are transforming the $180B intellectual property industry. If you want significant equity, a high performance culture, and the chance to work alongside PhDs from Cambridge and UCL on a product with massive global traction, this is your rocket ship.

Principal Engineer at Openr

Join a scaling London based SaaS startup that is revolutionizing how the hospitality industry manages data. Backed by the prominent Azzurri Group and already live in 1,500+ venues, this company is solving the manual nightmare of menu and price management for major restaurant chains. As the Principal Engineer and senior most IC, you will work directly with the Head of Engineering to shape a sophisticated, event driven TypeScript and AWS serverless architecture. This is a rare opportunity to play a foundational technical role in a revenue generating business with massive market traction, all while maintaining a healthy hybrid work life balance in Central London.

Member of Technical Staff at Zuba

Join the team building the first full stack cross border payments platform powered by stablecoin rails to unlock the potential of African trade. Based in London, this Member of Technical Staff role offers the chance to build mission critical infrastructure from the ground up, moving real money at scale while leveraging blockchain and AI tools. If you are an ambitious engineer with startup DNA who wants to solve hard problems in payments, treasury, and infrastructure, this is your chance to have a massive impact on an entire continent's economy.

Founding Product Engineer at Asteroid

Join a YC backed startup as their Founding Product Engineer to design the world's first interface for supervising autonomous computer use agents. If you have incredible taste and want to define how humans interact with AGI powered workforces, this greenfield role in San Francisco is your chance to shape the future of the global economy.

Machine Learning Engineer at Teamcando

Join a mission driven startup building the world's most advanced on device child safety technology. Backed by the founder of Tide Business Bank and partnered with Mumsnet, this role offers the rare chance to lead an entire ML capability. You will architect real time AI that protects children from harmful content across all apps while keeping data strictly private. If you're a builder who wants to apply cutting edge CV and NLP research to a problem that matters—supported by figures like Sir Tim Berners Lee—this is your opportunity to own a critical technical roadmap from day one.

Founding Engineer at Cascade

Join an elite team of ex Google and Amazon leads building the AI orchestration layer for the world's most massive physical projects. Backed by a16z Speedrun, this startup is modernizing how architects and engineers win multi million dollar contracts for projects like JFK, data centers, and luxury resorts. As a Founding Engineer in NYC, you'll own the full stack, ship at lightning speed, and help define the tech culture for a platform digitizing the physical world. If you have startup scars, a trail of cool side projects, and a passion for LLMs, this is your chance to build the skyline of the future.

Senior/Staff Software Engineer at Joyous.team

Are you a Senior or Staff Engineer ready to apply your technical expertise to a mission that truly matters? This venture backed mental health startup has already transformed over 60,000 lives by combining AI powered treatment plans with innovative telehealth solutions. Working directly with the CTO in Foster City, you will architect an AI first platform, build proprietary EHR systems, and deploy LLMs to personalize patient care at scale. If you have 6 10+ years of full stack experience and want to lead the technical evolution of a life saving product while earning up to $200k, this is your chance to shape the future of mental wellness.

Forward Deployed AI Engineer at Sanctuaryhealth

Join Sanctuaryhealth.io in London as a Breaker/Builder (Forward Deployed AI Engineer) to deploy custom AI agents with healthcare organizations on site. Sanctuaryhealth.io is a profitable, high-growth healthtech startup focused on improving patient care flows. This role offers the opportunity to shape a high-agency engineering culture from the ground up while tackling real-world, client-facing.

Forward Deployed Software Engineer at Northslope Technologies

As a Forward Deployed Engineer, you will bypass traditional bureaucracy to build custom AI software and production grade applications that solve mission critical problems for Fortune 500 leaders. This is a rare opportunity to own the full lifecycle of complex technical solutions—from enterprise data integration to LLM deployment—while working directly with operators to reshape how entire industries function in the real world.

Product Engineer at Scope

Scope is hiring a Product Engineer to build LLM-powered tools that replace manual inspections in real-world infrastructure. Based in London, Scope automates the $2 trillion compliance layer for global infrastructure and works with Shell and SpaceX. You'll be part of a first-mover team with the chance to visit client sites—from oil refineries to North Sea vessels—to see your code in action.

Full Stack Engineer at Godiligent

Join a high growth London fintech backed by Y Combinator that is revolutionizing Anti Money Laundering operations for global banks. As a Full Stack Engineer, you will build and scale AI agents that automate complex compliance workflows for publicly listed financial institutions across the US and Japan. This is a rare opportunity to join a post seed startup with real traction, offering significant equity and the chance to work directly with founders on the front lines of financial crime prevention. If you have 1 5 years of experience and a track record of excellence at top tier tech companies or universities, this is your chance to own a massive product surface area.

Founding Engineer at Tano

Tano.ai is building the world’s first autonomous AI CMO, and they are looking for a Founding Engineer to lead the charge. Backed by Seedcamp with £4.8m in funding and seeing 70% MoM growth, this is a rare chance to architect multi agent systems that run end to end marketing for global brands. If you are a high agency engineer with deep TypeScript and AI expertise ready to build a category defining company in London, this role offers £140K plus founding level equity.

Software Engineer at Axle Energy

Join the mission driven team building the 'Stripe for energy flexibility' at a high growth London startup backed by Accel. As an early engineer, you'll have insane ownership over the API infrastructure connecting millions of EVs and home batteries to the grid. If you're a Python expert who wants to solve hard distributed systems problems while fighting climate change, this is your chance to ship code that decarbonises the global energy system. This role offers architectural authority, a dog friendly Old Street office, and a meaningful slice of equity in a company tackling one of the world's most urgent technical challenges.

Member of Technical Staff at Truvo

Join Truvo as a Founding AI Engineer in San Francisco to build the world's first AI native insurance broker. We are a well funded seed stage startup replacing antiquated legacy systems with intelligent agents and deep carrier integrations. If you are a scrappy engineer with production LLM experience who wants to own a 0 to 1 product and earn significant founding equity (0.5 1.5%), this is your chance to transform a massive, broken industry.

Full Stack Engineer at Vitruehealth

Are you ready to use computer vision and AI to help eliminate chronic pain for millions? This high growth London health tech startup, already at £1M ARR and trusted by the NHS and Bupa, is looking for a Full Stack Engineer to join their lean team of 16. You'll ship impactful features across Vue.js and .NET, working alongside clinical experts to build diagnostic tools that are proven to reduce MSK pain by 34%. If you're a driver who thrives on autonomy and wants meaningful equity in a mission driven company, this is your chance to shape the future of preventative healthcare.

Senior Software Engineer at VOYA Games

Join an award winning studio founded by gaming industry veterans and help scale a mobile title that has already captured over 500,000 players. You will own backend architecture and build the infrastructure for the next generation of collaborative, player owned economies in gaming.

Founding Engineer at SAMMY Labs

Are you a Founding Engineer looking to make a massive impact without chasing social media fame? SAMMY Labs is tackling 'boring' but high impact problems at the intersection of AI and real business, experiencing extremely fast growth. This is your chance to build foundational technology and shape the future of a rapidly scaling company in London, contributing directly to its success.

Intermediate Software Engineer at Goodlord

Join Goodlord as an Intermediate Software Engineer (React) in London. Goodlord is a UK PropTech scale-up backed by £17M and handles over £1B in transactions. It offers genuine autonomy, a £1,000 development budget, and the chance to work with React/TypeScript in a Great Place to Work certified environment.

Founding Engineer at a fast-growing AI infrastructure startup in San Francisco, you will own the technical core from demand forecasting models to data architecture. The venture is well-funded and early-stage, offering substantial ownership and a chance to ship high-impact products with top-tier talent. This is an opportunity to define the platform's core and grow with a high-velocity team in San.

Software Engineer, Product at a fast-growing AI edtech startup in San Francisco. The well-funded company automates workflows for more than 100 universities and uses a modern Python and React stack. You will work directly with the founder to ship high-impact features and own aspects of the product roadmap and engineering culture.

The GTM Engineer will own the technical infrastructure powering marketing launches, including landing pages, CRM integrations, and growth experiments, in New York. This role offers real ownership at a VC-backed company and a chance to shape how a fast-growing platform scales.

Tech Lead - Data Engineering for a well-funded proptech SaaS in Central London. You will own the design and delivery of a global, high-scale data platform and fault-tolerant data pipelines using Snowflake and dbt. The role offers clear technical ownership and the chance to shape the data ecosystem for ML-driven products.

Based in London, this Software Architect role is with a confidential, well-funded property management SaaS platform. Lead the evolution of a complex distributed platform, design scalable microservices, and mentor engineering teams. Define the technical roadmap and deliver solutions that impact millions of users in a mission-critical enterprise SaaS.

Senior Software Engineer role at a well-funded legal tech SaaS in Central London. The confidential company maintains a hybrid culture in Shoreditch and focuses on simplifying immigration and compliance. You will work with a modern TypeScript/React/AWS stack, ship frequently, and explore AI/LLMs to drive real product impact.

You will be a Technical AI Learning Architect, shaping a world-class curriculum for AI builders. The role is with a confidential UK-based AI-focused learning consultancy, ensuring credible, real-world programs. This remote UK position offers the chance to influence technical excellence at scale and shape the next generation of engineers building with AI.

Founding AI Engineer at a VC-backed AI security startup, based in London, UK. As the first engineering hire, you'll build the infrastructure to secure autonomous AI agents. You’ll own the platform from day one with significant founding equity alongside founders with MIT and NASA pedigrees.

Join a stealth AI risk infrastructure startup in London as the founding engineer on a high-impact contract to build an evidence ingestion foundation. The role starts on contract and transitions into a core equity position, requiring deep Python experience to tackle greenfield AI risk and security challenges. With confidential status and work already supporting events for global banks, this is an.

Forward Deployed Engineer at a VC-backed enterprise AI startup in San Francisco. Lead high-stakes deployments, build custom integrations, and own the technical success of major clients. This opportunity offers deep technical ownership, significant equity, and a chance to influence the product roadmap and the future of enterprise automation.

Forward Deployed Engineer at a confidential AI automation startup. Based in San Francisco, you will bridge the platform with enterprise clients to deploy AI solutions. The role offers the chance to influence the core product roadmap through real-world deployments and high-stakes client work.

Software Engineer needed to design and build mission-critical systems at a well-funded enterprise technology platform in San Francisco, CA. The role is with a confidential company backed by top-tier VCs, with ownership of major product features and influence on technical architecture. This is an opportunity to accelerate your career in a fast-paced environment focused on practical impact and.

Full-Stack Engineer sought to join a confidential, VC-backed industrial technology startup in London. The company focuses on mapping the earth's subsurface for critical minerals and is experiencing strong growth and demand. This role lets you shape a global platform from the ground up, owning Azure data pipelines and high-performance APIs.

Lead the development of multimodal AI models that bridge research and real-world consumer impact. The role is with a confidential company in London backed by top-tier VC funding, offering the opportunity to deploy innovations at scale to a global audience. Compensation is not disclosed.

Lead the development of mission-critical features as a Senior Full-Stack Product Engineer on an AI security platform. The role is with a confidential, VC-backed fintech security startup based in London. This is an opportunity to join a well-funded team at the ground floor and contribute to scalable data systems that address financial risk.

Lead a three-month fractional engagement as Interim CTO for a well-funded healthtech AI startup in London. Provide technical stewardship for a production platform used by 12,000+ clinicians during a founder transition. Bring engineering leadership to high-stakes, regulated environments and help shape long-term technical strategy.

Forward Deployed Engineer in a confidential, venture-backed SaaS startup based in London. You will own end-to-end deployments, ship real workflows for enterprise clients, and directly influence the core product roadmap. This fast-scaling role offers tangible impact and the opportunity to turn deployment work into measurable value.

As an AI Research Engineer, you will build models powering a next-generation compliance platform. The role is with a well-funded London-based AI compliance startup. You will translate research into production-ready improvements tackling fraud detection and due diligence at scale.

Senior Fullstack Developer leading the development of digital products in a London-based design and development studio. Join a multi-disciplinary, craft-driven team that prioritizes clean code and thoughtful design. You will work on projects ranging from bespoke creative experiences to robust enterprise platforms in a collaborative environment.

Member of Technical Staff, AI Systems Engineer at a confidential London-based AI infrastructure startup. The company is well-funded. You will build high-throughput inference engines, tackle distributed systems challenges, and optimize GPUs at the edge of generative models.

You will be a Senior Backend Engineer responsible for owning critical features on a Rails 8 and Hotwire stack. The role is London-based at a fast-growing confidential healthtech SaaS, with a platform already operating in 14+ countries and offering meaningful equity and technical autonomy. Join a purpose-driven product that aims to bridge the global fertility gap.

The Forward Deployed Engineer role in London deploys AI solutions at enterprise client sites. You will bridge technical innovation and real-world needs for an enterprise AI platform. This well-funded AI-driven startup opportunity lets you travel to client sites and drive AI adoption for global clients.

Software Engineer role at a well-funded AI-driven proptech startup in London. You will own full-stack infrastructure—from data pipelines to mobile apps—and directly improve real-world efficiency.

You will take on the Founding Systems Architect/Engineer role at a London-based confidential AI proptech startup. As the first senior technical hire, you will define the architectural direction and build an AI-native platform from scratch. The role offers equity and direct founder collaboration to shape a scalable, real-time building intelligence system.

Become a Member of Technical Staff to lead the development of a batched inference server. The role is at a confidential London-based AI infrastructure startup with an in-person culture 2-3 days a week. It includes equity and a 75th-90th percentile salary band, with the chance to shape low-level systems and AI scaling.

Senior Full-Stack Engineer needed to own the development of a green-tech energy platform at a confidential startup. Based in London or remote, this role offers flexibility to build scalable tools that help enterprises optimize their carbon footprint and energy efficiency. Compensation is not disclosed, with an opportunity to shape end-to-end solutions at the intersection of IoT and climate tech.

Founding Backend Engineer at a confidential healthtech platform in London, UK. Join a well-funded startup building the technical foundation to ensure no hospital shift goes unfilled. The role offers high autonomy and a ground-floor opportunity to shape the product and impact patient care across the UK.

Founding Software Engineer at a confidential, well-funded industrial AI startup. Based in San Francisco, CA, you will build the automation engine for hardware design. This role offers the chance to shape the company’s technical foundation and culture from day one by delivering core AI systems for enterprise design workflows.

As a Mechanical Engineer, you will design, prototype, and deploy rugged hardware for robotics and physical AI. Join a confidential VC-backed optical communications startup in San Jose focused on low-latency optical systems. This opportunity lets you contribute from concept to deployment alongside a team of experienced technologists.

Join as a Forward Deployed Engineer at a well-funded AI industrial software startup in London. Bridge engineering and the field, owning onboarding to deployment, with opportunities to travel globally and work on-site at major facilities. Shape a core product roadmap while solving high-stakes problems on a fast-growing team.

We’re seeking a high-agency Full-Stack Engineer to own features end-to-end on a modern TypeScript stack for an AI agent orchestration platform. The role is with a small, elite team in New York at a confidential, well-funded AI startup. This is an opportunity to shape autonomous workflows at scale and participate in equity as part of the package.

Lead Product Reliability Engineer to own infrastructure and reliability for a high-growth, VC-backed B2B productivity platform in London. This confidential company is building scalable, resilient distributed systems and seeks a technical leader to define the architecture. The role offers high impact at the early stage of a fast-scaling global product with a meaningful equity stake.

Lead Platform Engineer in London, responsible for architecting and guiding the infrastructure for a scaling operations platform. The company is confidential and venture-backed, focused on global systems. This role offers the chance to shape technical strategy, mentor a top team, and gain equity upside.

Lead the product engineering function as Head of Product Engineering at a well-funded, high-growth B2B SaaS in London. Reporting to the CTO, you will shape architectural direction and mentor a world-class team building scalable cloud systems. This role offers equity and a clear opportunity to influence the platform's trajectory in a fast-paced London startup.

You will train large self-supervised models and advance R&D with a deep-tech team. This is an opportunity to contribute to scalable research and ship models that process centuries of audio data every month.

As a Machine Learning Engineer, you will design and scale production-grade ML models in London, UK. You will join a confidential, well-funded AI-driven social platform. The role offers the chance to influence how millions of users interact while working with a world-class team in a fast-paced, high-impact environment.

Principal Machine Learning Engineer role in a London-based confidential consumer-tech startup. You will lead technical strategy, mentor a team, and develop production-grade models used by millions. The position offers the chance to move from research to deployment and shape the platform's technical roadmap.

Forward Deployed Engineer role at a confidential venture-backed consumer tech startup in San Francisco, CA. Work on-site with major clients to build custom technical solutions and directly influence the product roadmap. This fast-paced role offers the opportunity to ship code that impacts customers globally.

Senior Backend Developer role at a confidential company in London, working with Python and Django to scale a platform used by millions. The role sits within a well-funded, London-based team where architectural evolution is a priority. This is an opportunity to influence global growth by making technical decisions for a high-performing engineering team.

As a frontend Software Engineer in London, UK, you will own the UI for a confidential data infrastructure startup, using React and TypeScript. You will build DAG visualizations and lineage graphs as the frontend anchor for a high-velocity 10-person team. This role offers a meaningful equity stake and the chance to shape a product used by data engineers worldwide.

Software Engineer (Frontend) in London, building the user interface for an AI-native data orchestration platform. The employer is a well-funded confidential company backed by top-tier VCs. This role offers ownership of high-performance frontend features using React and TypeScript to shape complex automation workflows.

Join as an AI Engineer in a lean, high-performing team in London building next-generation AI agents that automate engineering workflows. The role is with a confidential AI-driven developer tools startup backed by top-tier VCs. This is an opportunity to work at the intersection of LLMs and developer productivity tools and to influence how software is written at scale.

The Forward Deployed Engineer role embeds with customers to deploy AI solutions in clinical environments. The position is with a confidential, well-funded healthtech AI startup in San Francisco, CA. You will bridge product and production, solve complex edge cases, and partner with clinical leaders and executives to deliver measurable impact.

As a Software Engineer in San Francisco, you will build the infrastructure and evaluation frameworks used to train frontier AI agents. You will join a high-growth frontier AI startup at the ground floor. This role offers the opportunity to tackle high-stakes technical challenges that shape the future of autonomous software development.

As a Software Engineer, you will help build the AI layer for a New York-based, well-funded legal tech startup. You will ship features daily, work with real users, and collaborate with ex-Google/Amazon founders to shape the product.

Join as a new graduate software engineer at a fast-growing consumer social platform in New York. Work with a high-caliber engineering team, tackle large-scale technical challenges, and ship code to millions of users in a VC-backed startup. This role offers deep ownership, mentorship from experienced engineers, and opportunities to grow in a fast-moving environment.

We are seeking a Founding Engineer to take a mission-driven consumer prototype from concept to launch. The role is with a confidential mission-driven consumer tech non-profit in London, UK. It is a hybrid London position with compensation not disclosed and an opportunity to work with AI APIs to build a product.

Seeking a Founding Senior Full-Stack Engineer to build the agentic layer of the modern workplace. The role is with a stealth-stage AI coordination startup in London, backed by top-tier VCs and led by a founding team of Oxford PhDs and industry veterans. It offers an early opportunity to own the blend of front-end craft and LLM infrastructure and help shape the product at the pre-seed stage.

Founding backend engineer will own the infrastructure and databases for a VC-backed collaborative AI startup in London. The role emphasizes building scalable, secure systems with TypeScript and PostgreSQL within a fast-moving founding team. It offers equity and a chance to shape the next generation of AI infrastructure.

Join a well-funded early-stage AI startup in NYC as a Full-Stack Engineer. You will build end-to-end features using TypeScript and React, directly impacting product-market fit. This hybrid role offers a unique opportunity to shape engineering culture from the ground up.

Forward Deployed Engineer at a confidential, well-funded industrial AI startup. Based in San Francisco, deploy real-time computer vision on edge hardware for multi-billion dollar infrastructure companies. This role lets you apply 2+ years of FDE experience and work directly with founders from NASA and MIT to shape the future of field services.

The company is confidential and backed by top-tier VCs, and you will join as the second software engineer. This position offers ownership of meaningful backend work and the chance to deliver foundational services and clinician-facing integrations.

AI Engineer in London at a confidential, VC-backed fintech startup. You'll build autonomous AI agents for complex commercial workflows in banking and own the data pipeline end-to-end. You can ship production-ready work in your first sprint in a high-autonomy environment with real-world datasets.

Join as Founding Product Engineer at a London-based AI fintech startup. You'll work directly with the CTO to build automated ML scoring systems and agentic workflows, turning customer insights into shipped code in days. The role suits juniors with 1-3 years' experience and offers substantial ownership to help shape the future of investment tech.

Take on the SRE/Platform Engineer role to own the full infrastructure stack for a platform handling billions in assets. This is an opportunity to define reliability standards and scale GCP and Kubernetes to support a global investment platform.

Fullstack Kotlin Engineer role to drive the technical strategy across backend, web, and Android robotics. Join a confidential healthtech platform delivering remote care powered by AI and IoT-enabled robotics. This remote opportunity lets you shape a V2 architecture integrated with AI and IoT, and ship faster using agentic coding tools.

Senior ML Systems Engineer responsible for building high-performance data platforms and distributed training systems. Join a confidential, well-funded media AI startup in London. You will own the full stack from ingestion to production inference, enabling scalable content refinement and localization for filmmakers.

As a Principal Software Engineer, you will lead technical work at a London-based AI-driven creative media startup. The role offers a confidential, well-funded environment to shape architecture and core code for a platform enabling global content production and localization. You'll mentor a talented team and work with former tech-giant leaders, using TypeScript and Python at scale without.

We are seeking a technical co-founder to build the security layer for agentic AI at a stealth cybersecurity infrastructure startup. The company is confidential and London-based, with LOIs from nearly 100 enterprises and a fundraising round underway.

Product Engineer role at a confidential VC-backed fintech SaaS startup in London. You will own features end-to-end, from discovery to production, building AI-powered infrastructure with Next.js and Node.js to modernize how financial claims are processed. The position offers a competitive salary up to £150k plus equity and the opportunity to work closely with founders and alumni from top-tier.

Clinical Product Engineer role at a confidential, fast-growing AI healthtech startup in San Francisco. Join the founding team to bridge clinical expertise and full-stack engineering, shipping LLM-powered features for clinicians. This is an opportunity to help shape the product and contribute to rapid growth with a lean team.

Lead the research function as Founding Research Scientist at a stealth physical AI startup in San Francisco. Own the full research stack and help translate research into real-world robotics by building the required infrastructure. This founding opportunity offers equity and a chance to shape the early development of the platform.

Staff Software Engineer role in San Francisco at a stealth-stage healthtech AI startup backed by top-tier VCs. You will design and build fault-tolerant, real-time information infrastructure to replace legacy systems in mission-critical environments. This is an opportunity to lead 0-1 platform development with substantial technical impact.

Join an early-stage London, UK-based gaming AI startup as the second software engineer, tackling low-latency voice, computer vision, and real-time knowledge retrieval. You will help build a real-time AI copilot that watches the screen and talks to players like a pro. As a founding-level role, it offers a chance to shape how players interact with games through AI orchestration.

GPU compute is rapidly becoming a new global financial asset class, yet it lacks the liquid market infrastructure required for the AI era. This VC backed startup in London, founded by experts from top tier quantitative funds and big tech infrastructure teams, is building the financial grade rails to trade and orchestrate compute at scale. As a founding Senior Staff Platform Engineer, you will define the architecture for real time pricing and settlement systems, bridging the gap between high performance hardware and sophisticated capital markets. If you have a background in fintech rails or distributed systems and want a high equity role shaping a new industry, this is your opportunity.

Are you ready to build the AI Operating System for healthcare? This London based healthtech startup is looking for a Founding Fullstack Engineer to work alongside their Oxford PhD CTO. You will have the unique opportunity to architect a platform from scratch that automates clinical workflows for underserved medical chains. With a focus on Next.js, TypeScript, and advanced AI agentic systems, this role offers significant equity and the chance to define the future of healthcare technology. If you crave high autonomy, 0 to 1 product ownership, and the chance to ship code that genuinely improves patient care, this is the career defining move you've been looking for.

Are you ready to be the first AI/ML hire at a high growth startup transforming the London insurance market? This is a rare greenfield opportunity to own the entire AI strategy, from architecting MLOps foundations to shipping production grade RAG systems. You'll work directly with the CTO to build tools that augment expert judgment in a legacy industry ripe for disruption. If you're a seasoned engineer who thrives on autonomy and wants to see your code directly impact business outcomes, this role offers a significant equity stake and the chance to shape a company's technical trajectory from day one.

Are you ready to be the first engineering hire at a high growth AI startup? We are looking for an exceptional Founding Engineer in London to build intelligent agents that reason over complex, unstructured data for enterprise clients. With a base salary up to £150k plus meaningful equity, you will own the technical direction across AI orchestration and data infrastructure. If you thrive in fast paced environments, possess a bias for action, and want to ship production grade LLM systems from the ground up, this is your opportunity to shape a next generation platform.

Join an elite founding team building the AI layer that autonomously runs small businesses. Working directly with a founder who recently led a $300M exit, you will enjoy high pay, tangible equity, and a significant internal warchest. If you are a high agency engineer with deep JavaScript or Python expertise ready to ship cutting edge AI features, this is your chance to build what has never existed before in a fast paced, winning environment.

Help decarbonize the UK by building the operating system for the home energy transition. This VC backed startup is looking for Full Stack Engineers to join their high calibre team in London or Bristol. You'll tackle fascinating technical challenges like LiDAR floor plan tooling and geospatial analysis while enjoying a meaningful equity stake and a mission driven culture that prioritizes real world impact over bureaucracy.

Are you a Full Stack Software Engineer eager to make a significant impact from day one? Join a fast growing voice AI startup building the next generation of intelligent products for small businesses. This is a unique opportunity to take high ownership, contribute directly to a cutting edge platform, and shape a best in class voice experience that empowers business owners.

Are you a Senior Backend Engineer eager to build foundational systems from scratch? Join a fast growing, VC backed B2B software platform that's revolutionizing how software is bought and sold. This greenfield opportunity offers the chance to design and implement the core, scalable backend infrastructure, making a significant impact on an innovative platform disrupting an entire industry.

Are you a Senior Software Engineer looking to tackle complex scientific challenges with high impact engineering? Join a fast growing, well funded deep tech startup in East London that is revolutionizing how sustainable materials are designed. You'll build a sophisticated SaaS platform using TypeScript, React, and Kubernetes to orchestrate powerful AI vision models, working alongside a high trust team of scientists and engineers. If you have 5+ years of experience and thrive in high ownership roles where your code powers real world breakthroughs in battery technology and aerospace, this is the opportunity for you.

Are you an Applied AI Engineer ready to redefine virtual worlds? Join an innovative startup at the cutting edge of AI powered 3D environment and game generation. You'll tackle challenges in large scale systems, multi agent orchestration, and advanced reinforcement learning, shaping how interactive experiences are created and monetized. This is a unique chance to make a significant impact on the future of gaming and simulation.

Are you a Senior Fullstack Engineer looking to build products from 0 to 1? This well funded mobility tech startup is looking for a critical thinker to lead the development of AI driven tools that tackle the industry's biggest inefficiencies. If you thrive in high ownership environments and love translating complex problems into simple, high UX solutions using Ruby on Rails and React, this is your next big move.

Are you an AI native engineer who loves shipping product? Join a well funded startup in London tackling a massive, underserved problem in enterprise IT. You will work across the full stack to build sophisticated LLM agent pipelines that modernize millions of lines of legacy code. If you have exceptional product instincts and a hunger to build something enduring alongside a world class team, this is the role for you. High agency and rapid iteration are the name of the game here.

Join a high performance team as a Software Engineer and help digitize the UK’s industrial compliance landscape using AI. This high agency role gives you the freedom to run your own growth experiments while working across a modern stack of React, Next.js, and React Native. If you want to move fast, own your output, and enjoy perks like daily catered meals and gym memberships, this is the place for you.

Are you a Senior Software Engineer eager to make a significant impact at the intersection of AI and creativity? Join a pioneering, well funded platform that's transforming the entertainment industry by empowering filmmakers with assistive AI tools. This is a unique opportunity to design and build scalable backend systems, contribute to setting ethical AI standards, and redefine what's possible on screen, all while collaborating with a dynamic, cross functional team. If you thrive on shipping impactful features in a fast moving environment, this role offers unparalleled growth and influence.

Ready to be a foundational force in a rapidly scaling AI startup? We're seeking a Founding Full Stack Engineer to build and scale an innovative enterprise AI platform. This is a career defining opportunity to shape technical strategy, work with cutting edge AI models, and drive significant impact in a well funded company with paying customers. If you thrive on ownership and rapid learning, this role offers unparalleled growth and influence.

Are you ready to rebuild the broken property market? We are looking for an AI native Founding Engineer to join a London based startup backed by top tier VCs. You will replace manual real estate workflows with autonomous AI agents, owning the tech stack from Day 1. If you are a high agency builder with experience in Python, TypeScript, and LLMs who wants to transition from employee to owner, this is your chance to secure a founding equity stake and reshape a multi trillion dollar industry before our upcoming US expansion.

Founding Software Engineer (£100k £140k + Equity) at Well funded AI voice agent startup Founding Software Engineer