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

Senior Product Manager at Borderless

As Senior Product Manager at Borderless in London, you own end-to-end delivery of features that have helped 15,000+ people navigate the UK immigration system. Borderless is an Entrepreneur First and Backed.VC-backed startup using technology to dismantle borders from its London HQ. The role offers an opportunity to shape product strategy as the company scales into new markets in 2026 for.

Head of Sales at Partly

Head of Sales at Partly, based in London, leads the UK expansion for automotive parts infrastructure. Partly is founded by ex-Rocket Lab engineers and backed by investors from Figma, Notion, and Canva, pursuing a $1.9T market opportunity. The role offers a salary up to £120k, double OTE, and strong equity for building sales playbooks and scaling networks in the UK.

Clinical Evidence Specialist at Scarlet

Clinical Evidence Specialist at Scarlet in London evaluates clinical evidence to determine the safety of AI tools for use in the doctor's office. Scarlet is a leading authority on AI medical device certification, backed by Creandum, building the regulatory infrastructure for the next generation of healthcare. Join a multidisciplinary team of clinicians and AI researchers to scrutinize evidence.

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. Fonoa is a Series B startup automating indirect taxes for the internet economy, backed by Coatue and Index Ventures. The role emphasizes ownership, strong Go and TypeScript engineering, and the chance to solve real customer problems with fast execution.

Senior Software Engineer at Keith

Join Keith in Central London as the first dedicated Senior Software Engineer to build an AI-native law firm platform. Keith is a high-growth startup backed by Breega and Backed VC, led by founders of a fast-growing UK consumer brand. Own the platform’s technical foundation, from complex state machines to 38+ AI agents, with salary up to £120k and meaningful founding equity.

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.

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.

Technical Product / Program Manager at Light Links, Inc.

Join Light Links, Inc., a UC Berkeley SkyDeck-backed Bay Area startup in San Jose, as the founding Technical Product/Program Manager. You will bridge world-class hardware engineering and real-world robotics deployments, owning the roadmap for a high-bandwidth optical communication system with sub-millisecond latency. This first-hire role offers significant equity and direct strategic influence.

Full-Stack Data Analyst at Valon Technologies, Inc.

Lead as a Full-Stack Data Analyst at Valon Technologies, Inc. in San Francisco, owning client implementations and the full data lifecycle from dbt pipelines to Looker and Hex dashboards. Valon is an AI-native, Series C unicorn backed by a16z redefining mortgage servicing. Bring 6+ years of data experience and expert SQL to drive data strategy and earn 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.

Founding Engineer at Corvera

Founding Engineer at Corvera in San Francisco leads building the AI-native operating system for global CPG brands. Corvera is a YC-backed startup with $6.3M in funding that has reached $35K MRR in two months and automates back-office work with autonomous agents. The role focuses on designing durable agent runtimes and enterprise-scale orchestration systems as part of a fast-moving engineering.

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.

Join a well-funded legal tech AI startup as a Founding Engineer in London. You will build the core infrastructure for deterministic legal AI, focusing on provably correct systems with low latency. This is an opportunity to own the technical roadmap and solve complex challenges alongside an experienced team.

Senior Software Engineer at Godiligent

Godiligent.ai is hiring a Senior Software Engineer to join their founding team in London. This YC-backed startup uses LLMs to combat financial fraud for global institutions. The role offers a chance to build AI-driven risk automation from the ground up with significant equity.

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.

Machine Learning Engineer at Fleek

We are hiring a principal-level Machine Learning Engineer to lead vision initiatives at Fleek in London. Fleek is a London-based startup focused on AI and commerce, with the role based in Shoreditch. The position offers ownership of the ML roadmap and the chance to build production-grade systems that directly impact the user experience on a scaling platform.

Founding Full-Stack Engineer at Invention Co

Join as a Founding Full-Stack Engineer at Invention Co in San Jose. Backed by General Catalyst, Neo, and SoftBank's Deepcore, the startup is building AI-powered IP research to automate patent work. You will own the technical roadmap from React to Python and earn meaningful equity as part of a venture-backed ground-floor opportunity.

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.

Backend Engineer at Vitruehealth

Join Vitruehealth.com as a Backend Engineer in London, owning production services on a .NET and AWS stack. The mission-driven health-tech startup has a 16-person team and counts NHS, Bupa, and Gymshark among its clients across 32 countries. The role offers £70k-£80k plus equity and the chance to work autonomously with clinical experts to deliver impactful, life-changing technology.

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.

Product Operations Manager at Valon Technologies, Inc.

As Product Operations Manager, you will act across Product and Engineering to design systems that convert real-world usage into durable product insights at Valon Technologies, Inc. Valon Technologies, Inc. is a $1.1B fintech backed by a16z and WestCap, building the AI-native operating system for mortgage servicing. This role offers the opportunity to influence product direction through.

Account Manager at Parallel Distribution

Join Parallel Distribution as an Account Manager in New York. You will lead creative development, organic distribution, and measurement for mid-market and enterprise mobile apps, collaborating with UA managers and utilizing attribution data. This role offers the opportunity to drive growth at the intersection of creative research and performance data.

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.

Senior Backend Engineer at Phonely

Senior Backend Engineer in San Francisco at Phonely will own the core infrastructure of a real-time voice AI platform. Phonely is a YC S24 startup that recently raised a $16M Series A led by Base10 Partners and is building AI agents with sub-400ms latency. This role scales the platform toward 1 billion annual calls and collaborates with PhD founders using Python and Rust.

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.

Lead Engineer at haboo money

Lead Engineer at haboo money in London. As the foundational lead engineer at this Techstars-backed startup, you will own the technical roadmap and work directly with the founders. You’ll leverage Kotlin and Open Banking to help people break the cycle of debt and lead a mission-driven team with high autonomy.

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.

Tech Lead / Software Architect at Plentific Ltd

Tech Lead / Software Architect at Plentific Ltd in London leads the platform's technical direction. Plentific is a PropTech scale-up backed by $140M, powering 1.7 million properties and building Python/Django microservices on Kubernetes. The role offers hands-on leadership and AI-assisted development for real-time logistics and fintech at scale.

Lead Product Reliability Engineer at Fyxer AI

Lead Product Reliability Engineer at Fyxer AI in London, owning the platform's infrastructure and reliability standards. Fyxer AI is one of London's fastest-growing AI startups, backed by Marc Benioff and 20VC, with rapid growth to $30M+ ARR. The role offers the opportunity to shape a platform used by thousands of professionals as a core member of the platform team, with up to £170k plus equity.

Software Engineer role at a fast-growing Series A healthtech startup in San Francisco, CA. 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.

Founding Engineer at Percept

Founding Engineer at Percept in San Francisco, CA. You will build the foundation model for the physical world and the interfaces for native 3D interaction. As a founding member of a pre-seed spatial AI startup, you can shape a product from its earliest stages with equity.

We are hiring a Senior or Staff Product Engineer. Join a London-based VC-backed workforce engineering startup. You'll work directly with customers and ship features end-to-end, shaping how companies measure human and AI work.

Public Health Tech Specialist in London at a confidential healthtech startup. The company is well-funded and developing early-detection systems for viruses and bacteria. This role lets you apply engineering skills to protect global health and contribute to mission-critical systems.

Staff Product Engineer role in London for a well-funded Series B AI startup. Lead architectural decisions and collaborate with researchers to ship AI-native products used by thousands daily. Hybrid work with a significant equity package in a VC-backed company offering an impactful growth path.

Senior Full Stack Engineer in London at a confidential consumer fintech startup. Own features end-to-end with a modern TypeScript stack (React Native, gRPC, GCP) in a high-velocity team. This role offers the opportunity to impact millions by shipping high-quality code in an in-person, fast-moving environment.

We are hiring a Full Stack Developer (PHP) for a VC-backed enterprise SaaS startup in the UK. You will work directly with the CTO to scale a platform already used by real customers in a flat, collaborative environment. The role offers up to £55k salary with EMI equity options and private healthcare, giving you the chance to shape the product's future.

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.

Technical Solutions Engineer based in London at a confidential AI data infrastructure startup. You will work with former aerospace engineers to build digital infrastructure for enterprise clients, managing data workflows and API integrations. The company is rapidly scaling, backed by top-tier VCs, offering the chance to contribute to AI solutions for global customers.

Take on the SRE/Platform Engineer role to own the full infrastructure stack for a platform handling billions in assets. The position is with a well-funded Series A fintech SaaS based in London, UK. This is an opportunity to define reliability standards and scale GCP and Kubernetes to support a global investment platform.

Backend Engineer role in London at a confidential, well-funded healthcare infrastructure startup. As the first engineering hire, you will build an ingestion engine that converts insurance policies into computable contracts using Python, AWS and advanced LLM frameworks. The role includes meaningful equity and the chance to shape the future of medical infrastructure.

You will join as the fourth backend engineer at a fast-growing accounting-tech SaaS in Central London. The company is an award-winning startup with revenue doubling and strategic partnerships, tackling the month-end nightmare for finance teams. You will ship high-impact code using Spring Boot and Ruby on Rails in a high-ownership environment, with growth opportunities as the business expands.

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. You will own the architecture, choose the stack, and ship the MVP that defines how autonomous agents are secured, joining from day zero as a true.

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.

Partner at Balfour Warburg

Partner to join a £1B AUM fund at Balfour Warburg in London. You will use a proprietary AI platform to invest in the remobilisation of the Western industrial base, focusing on defense, semiconductors and critical infrastructure. This is a ground-floor leadership opportunity to shape an investment platform for Western resilience and strategic capacity.

Senior Business Development Representative at Raft

The Senior Business Development Representative role at Raft is based in London. Raft is an AI-powered platform transforming the supply chain, a Series B startup backed by $45M from Bessemer and Eight Roads. You will own the outbound strategy in a high-growth environment, using Clay and AI intent signals to land meetings with DHL and UPS.

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.

Founder’s Associate (Ops) at Assuric

Founder’s Associate (Ops) at Assuric, a London-based Entrepreneurs First-backed startup transforming healthcare compliance with AI. You’ll own operations and automation and work directly with the CEO in Shoreditch to build the systems powering next‑gen healthtech. With 1–3 years in a high-growth environment, this role offers a path to becoming an Operations Lead with meaningful equity.

Performance Marketing Manager at GetGround

Performance Marketing Manager at GetGround in London, owning the paid acquisition engine. GetGround is a QED-backed fintech with a £2bn+ asset platform and international traction. The role offers equity and the chance to shape experiments across the full funnel with Product and Engineering.

Commercial Lead at Passion Labs

Passion Labs, a bootstrapped and profitable London-based team of PhD researchers and ML engineers, is seeking its first Commercial Lead. You will lead the commercial engine and work directly with the CEO to convert inbound demand into high-impact AI engagements across domains from music discovery to structural engineering. This foundational role is ideal for someone with 4–7 years in complex.

Finance Director at Rainforest Builder

The Finance Director at Rainforest Builder will lead the finance function and move beyond fundraising to build a scalable operational engine. Rainforest Builder is a VC-backed startup aiming to optimize international workflows and unit economics during a period of rapid growth. Based in London with flexibility for Portugal, the role offers an opportunity to shape finance operations as the.

Customer Success Manager at Humaans

Join Humaans in London, UK as a Customer Success Manager helping enterprise clients deploy Athena, an AI-enabled workforce product. Humaans is a $20M Series A startup backed by the founders of Slack, Figma and Shopify. The role lets you build the AI-enabled CS playbook from the ground up with market-leading compensation and meaningful equity.

Senior Product Manager at DataCamp, Inc

Senior Product Manager at DataCamp, Inc, responsible for the logged-out experience and acquisition funnel across the UK, Belgium, and Portugal. You will lead a dedicated engineering team to optimize high-traffic surfaces, applying SEO, PLG, and AI to drive conversion wins. This role offers the opportunity to impact millions of learners on a global data science education platform.

Founding Engineer at My Data Value

Founding Engineer (£80K–£90K + Equity) at My Data Value in London, UK. As the second engineering hire, you will work directly with the founders in Canary Wharf to build AI-driven pricing tools for independent hotels. Join a ramen-profitable startup with $300k ARR, near-zero churn, and a 3.5% equity pool for the first two hires.

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. Fleek is a high-growth Series B startup backed by a16z and Y Combinator fixing the fashion supply chain. 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.

Platform Engineer at Aranya

Join Aranya.tech in San Francisco, CA as a Platform Engineer. Work with the founding team to build a Kubernetes operating system using Go, Cilium, and ArgoCD. This early role offers the chance to shape distributed systems and cluster management at a high-growth startup.

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 Backend Engineer at Highlo

Founding Backend Engineer at Highlo in London, UK. Join the founding team backed by former Stripe CTO and top-tier investors to build the first breakout consumer shopping agent. For engineers with 8+ years in backend, up to 1% equity is available to help shape the product from ground up.

Senior Product Engineer at Stepful

Senior Product Engineer at Stepful in New York, helping solve the national healthcare shortage. Stepful, backed by a $31.5M Series B led by Oak HC/FT and Y Combinator, is using generative AI to transform student training and placement at institutions like CVS and NY-Presbyterian. With 6+ years of full-stack experience, this is a career-defining opportunity to build AI tools for career services.

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. Join a founding engineering team building AI-native agentic systems to replace manual certification checks, led by two ex-Palantir technical founders and backed by $3.3M in VC funding. This role offers the opportunity to learn the Palantir playbook and own impactful work that underpins global commerce from the ground up.

Product Manager at Drafter Inc.

Product Manager role at Drafter Inc. in San Francisco, CA. Drafter Inc. is a well-funded startup building an AI Manufacturing Engineer platform to automate manual production tasks for teams creating robots, rockets, and medical devices. You will own the roadmap alongside the founders and help shape a platform with equity and strong benefits.

Founding Engineer at Alcor Labs

Founding Engineer at Alcor Labs in San Francisco, leading the development of agentic vision systems for smart glasses. Alcor Labs is a stealth-mode startup backed by elite investors, bridging large vision models with real-time environmental intelligence. This is an opportunity to shape a new hardware category from the ground up and make a lasting impact.

Mobile Engineer at Abby Care

As the first dedicated Mobile Engineer at Abby Care in San Francisco, you will own the mobile roadmap for a mission-critical healthcare platform. Abby Care is a Sequoia-backed startup building an AI-powered platform for 50 million family caregivers. This role lets you shape a high-growth product from the ground up and deliver offline-first experiences, with equity and social impact.

Founding Engineer at VizCo

As the founding engineer at VizCo in San Francisco, you will build the security layer for enterprise AI and own major product surfaces. VizCo is backed by Transpose Platform and Entrepreneurs First, placing you at the core of the company's early-stage product efforts. This early role offers a direct path to technical leadership for someone with deep Azure experience and the chance to shape.

Applied AI Engineer at Abby Care

Join Abby Care as an Applied AI Engineer in San Francisco, CA. You’ll work with a Sequoia-backed team of about 23, led by the former Head of Health AI at Amazon, building AI-native copilots for millions of family caregivers. As an early engineer, you’ll own the full AI lifecycle in a high-ownership, 4-day in-person environment, contributing to a platform that has reduced hospitalizations by 38%.

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.

Founding Software Engineer at TerraWise Solutions, Inc.

As a Founding Software Engineer at TerraWise Solutions, Inc., you will own the full software stack and ML infrastructure. You’ll join a deeply technical founding team in San Francisco building autonomous robots and an AI platform to inspect large solar plants. This climate tech opportunity lets you turn field data into real-time insights and help guide a growing startup.

Founding Engineer at Alcor Labs

Founding Engineer at Alcor Labs in Palo Alto. Alcor Labs, a revenue-generating startup founded by Harvard and MIT alumni, is building embodied AI systems for smart glasses. This role offers the opportunity to contribute early to the development of embodied AI with real industry clients.

Software Engineer at Motives

Software Engineer at Motives in London, a YC S25 startup building an AI-powered consumer research platform. As the second engineer, you'll work directly with the founders to build an AI-first product using Next.js, TypeScript, and GraphQL. This high-ownership role in London offers £75k-£100k+ plus significant equity for a generalist who ships fast.

Frontend Developer at Vitruehealth

Frontend Developer at Vitruehealth.com in London, UK, joining a high-growth healthtech startup. You’ll help build VIDA, an AI-powered platform using computer vision to help millions move better and live pain-free, already used by NHS and BUPA. The role offers £70k-£80k and meaningful equity, with the chance to own the frontend architecture as the product scales into the US and Europe.

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.

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.

AI Lead at Wyn Procurement Limited

You will join Wyn Procurement Limited in London as AI Lead to build autonomous agents and intelligent workflows across the business. Based near Liverpool Street, you will work with the founders to define Wyn's AI roadmap for its high-growth software procurement operations. Bring a hacker mindset and a portfolio of AI projects to drive internal automation and deliver measurable impact for.

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.

Founding Engineer at Piris Labs

This internship at Piris Labs in San Francisco leads to a Founding Engineer role with a significant equity stake. Piris Labs is a YC W26-backed startup with engineers from Meta and Twitter, pursuing AI inference through a custom software layer and photonic-enabled hardware. You will write high-performance kernels and build a low-latency inference server as part of the path to the founding role.

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.

Senior Rust Engineer at Lingopal

As a Senior Rust Engineer at Lingopal.ai in Palo Alto, you’ll design a real-time translation pipeline. You’ll enable sub-second latency for live sports and broadcasts for a global audience. This high-ownership Series A role offers the chance to define technology that does not yet exist.

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.

AI Engineer at Rye.energy

AI Engineer at Rye.energy in London, joining as the company's first AI-focused engineer. Rye.energy is a high-growth London startup backed by CapitalT and January Ventures, building an AI-native energy platform atop its successful SaaS product. This role offers a £500k equity stake and the chance to own the AI layer of the platform as the company scales.

Take the Partnerships Lead role at a fast-growing AI healthtech startup in San Francisco. Own the full partnership lifecycle—from structuring complex deals with major healthcare organizations to managing executive relationships—and drive global expansion for a platform used by 150,000 clinicians monthly. This is an opportunity to shape the growth trajectory of a well-funded healthtech platform.

Join as a Product Engineer at a fast-growing AI startup in San Francisco. We’re seeking a founding-level developer to work at the intersection of UX and AI, with a focus on LLMs and evals. This role offers the opportunity to shape a high-growth platform from the ground up at a well-funded company backed by top-tier VCs.

Senior Software Engineer at Bezos

Senior Software Engineer role at Bezos.ai, an AI-powered e-commerce logistics startup, building backend services in a serverless Go environment on AWS. You will work with the Head of Engineering to own infrastructure that automates fulfilment for global brands from a fully remote UK base. The role includes stock options and real ownership with opportunities to shape the technical direction as.

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.

CTO at FairFlow Finance

Founding CTO role at FairFlow Finance Limited in London, UK. Lead the architecture of an AI-native, automation-first lending platform from the ground up. Own the technical strategy for a greenfield project that reduces operating costs and enables scalable revenue, while leading a high-impact team.

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. Model ML is a fast-growing enterprise AI platform backed by a $75M Series A, serving major financial institutions. 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.

Software Engineer at Rezonant

Software Engineer at Rezonant in London, UK. Rezonant is a fast-growing startup that helps teams accelerate their software development lifecycle with agent-native workflows as it exits private beta. The role offers the chance to shape the product from the ground up, working with Python, Temporal, and the latest LLM frameworks on an AI-native engineering team.

Engineering Lead at 9fin

Engineering Lead in London at 9fin.com. 9fin is an AI fintech unicorn that recently closed a $170M Series C and is scaling its debt capital markets platform. You will lead a high-performing team, stay hands-on with Python and AWS, and report to engineering leaders from Bloomberg and Nasdaq to build scalable, data-heavy products.

Applied Scientist at Flawless

Applied Scientist at Flawless in London, UK. Bridge research and production by scaling high-fidelity audio and video dataset generation and operationalizing lip-sync model pipelines. This role offers the opportunity to apply multimodal research to cinema and storytelling for global audiences.

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.

Software Engineer at Skan AI

Software Engineer at Skan AI. Skan AI builds enterprise agentic AI systems that execute complex business flows at scale. The role offers the chance to tackle orchestration and retrieval challenges using real-time telemetry.

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.

Systems Engineering at Architect

Architect is seeking a Systems Engineer to own deep backend infrastructure, from context engines to OLAP scaling, in London. Architect is rebuilding the web by replacing static sites with intelligent AI agents and is backed by £3.5M from Project A. Join a 10-person London team to work directly with technical founders on a service-oriented stack using TypeScript and Temporal.io.

Design Engineer at Architect

Design Engineer role at Architect, a London-based AI startup. You'll work directly with the founders to build intelligent, real-time web experiences that adapt to every visitor. Equity is included as part of the opportunity.

Product Engineer at Architect

Architect is hiring a Product Engineer in London to ship full-stack features that personalize the web in real time. You'll work directly with the co-founders at a seed-stage startup backed by £3.5M. This role offers substantial technical ownership and the chance to help define a new category for AI-powered web experiences.

Product Engineer at Sektor

Product Engineer at Sektor in London, an early full-stack role. Sektor is building the first autonomous orchestration layer for enterprise deployments in the construction industry, with $2M+ ARR secured from global giants. 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.

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.

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. This role offers meaningful equity for 4-8 years of 0-to-1 engineering experience at a company freshly out of stealth, backed by $8.5m in seed funding and strong growth.

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. Attio is redefining CRM for the AI era and has raised $116M from GV and Redpoint, with 10x ARR growth in 24 months. 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.

Founding AI/ML Engineer at Generalcatalyst

Join as the founding AI/ML Engineer for Curium at Generalcatalyst.com in San Francisco. You’ll help pioneer Generative Engine Optimization alongside a team led by a GPT co-creator and Princeton faculty. The role blends cutting-edge research with production engineering and includes founding equity with VC backing.

Applied AI Engineer at Console

As an Applied AI Engineer at Console.com, you own the core reasoning engine and ship frontier agent architectures. Console.com is building AI-powered automation to replace manual back-office tasks for enterprise software customers. Join a team with members from OpenAI, Sentry, and Cognition and help move from demos to shipping autonomous agents at scale.

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.

Site Reliability Engineer at Equals

Site Reliability Engineer at EQUALS in London. You will own the infrastructure powering the world's largest social music network. This high-autonomy role offers broad scope and the opportunity to contribute through equity.

Founding Hardware Engineer at Monty

Founding Hardware Engineer at Monty AI leads the tactile glove program. Monty is building physical AI data infrastructure for humanoid robotics in San Francisco, collaborating with teams from Meta Superintelligence Labs and Stanford. This role offers end-to-end ownership of the hardware stack and a meaningful founding stake in a fast-moving startup.

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.

Senior Machine Learning Engineer - Life Sciences at Faculty

As a Senior Machine Learning Engineer at Faculty, you will architect production-grade AI systems for life sciences in London UK. Faculty partners with global pharma firms and is scaling through a move to Accenture. This hands-on leadership role applies engineering rigor to real healthcare challenges.

Full Stack AI Engineer at CreateTOTALLY

Join CreateTOTALLY as a Full Stack AI Engineer to ship real LLM-powered features on a Next.js and AWS stack. Based in Central London (Soho), you’ll work with a London team at CreateTOTALLY transforming marketing workflows for global brands. With 3-5 years of experience, this is an opportunity to lead our AI development effort and turn creative insights into automated actions.

AI/ML Research Engineer at Generalcatalyst

As an AI/ML Research Engineer, you will work with the founders to develop vision-language models and agentic architectures. Join RamAIn at Generalcatalyst.com in San Francisco, CA, a Y Combinator W26 startup building enterprise AI automation. The role offers a ground-floor opportunity with meaningful equity to translate cutting-edge research into production.

Forward Deployed Engineer, EMEA at Airtable

Forward Deployed Engineer, EMEA at Airtable, based in London, is the technical face of enterprise transformation across the region. You will embed with Fortune 100 customers to architect and ship production-ready AI solutions. As Airtable approaches $500M ARR and launches its frontier agentic layer, the role offers deep technical work with executive-level business impact.

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 Forward Deployed Engineer at Covecta

Founding Forward Deployed Engineer at Covecta in London will lead the deployment of Agentic AI across the financial services sector. Covecta is backed by Salesforce Ventures and led by a founding team that scaled Mambu to a €4.7bn valuation. You will work with clients like Metro Bank, tackle legacy bottlenecks with high-impact Python engineering, and receive meaningful equity in this early-stage.

AI Research Scientist at Paddington Robotics

AI Research Scientist at Paddington Robotics Limited in London, focusing on real-world robot deployment. Use live data to build general-purpose models for navigation and manipulation. Join a team with ties to the co-founder of Magic Pony and collaborations with Amazon AGI and InstaDeep, with equity as part of the opportunity.

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.

Senior Product Manager - Finance at Cosmoslabs

As Senior Product Manager for Finance at Cosmoslabs.io in New York, you will lead efforts to tokenize global deposits. You will bridge traditional core banking with 24/7 blockchain settlement and handle FDIC insurance, Fedwire, and GL reconciliation. This role offers the opportunity to ship fintech products that manage billions in value within the Cosmos ecosystem.

Deployment Strategist at Encord

Encord is hiring its first US-based Deployment Strategist in San Francisco, CA. You will bridge the gap between technical execution and customer strategy, report to the Chief of Staff, and help build the US post-sales playbook with ML engineers. With 2+ years in technical SaaS deployments, you will own the success of AI deployments for teams like Toyota and Zipline at a high-growth startup.

Account Executive at Grateful

The Account Executive role in London at Grateful offers a £45k-£50k base and ownership of the UK market. Grateful is a hospitality fintech that helps 65,000+ workers receive fair tips through an automated, compliant platform. The opportunity includes a 16% commission and a direct line to the founders in a growing, profitable startup.

Product Engineer — Cards at Evervault

Senior Frontend Engineer role at Evervault Limited in London. Evervault is a Sequoia-backed security startup building the encryption layer for the internet's payment stack. Join the London Cards team to design core APIs and primitives that tokenize billions in transactions and own critical infrastructure at a high-growth company.

Security Engineer at Incident

Join Incident.io as their first Security Engineer and shape the security function from the ground up. London-based Incident.io is a $400M Series B startup backed by Index Ventures with an engineering team that includes alumni from Monzo. The role offers £110K–£200K plus equity and the chance to build, coach, and scale security for a fast-moving platform.

Founding Product Engineer at Fleetcraft

Founding Product Engineer at Fleetcraft in Central London. Fleetcraft is a Susa Ventures-backed startup building AI infrastructure for global aerospace, with a founding team in Fitzrovia. The role offers the opportunity to tackle complex aviation engineering challenges and help shape the company's early growth with founding equity.

Full Stack Engineer at Lichenai

Full Stack Engineer role at Lichen AI in Cambridge, UK. You would be the company's first Founding Engineer, helping take a prototype to a production-grade SaaS and shape the technical direction. The position includes a significant equity stake and the opportunity to contribute to a company backed by policy and research expertise.

Platform Engineer at Saturnos

Platform Engineer at Saturnos.com in London, UK. Saturnos.com is a YC-backed, Series A fintech building an AI-native operating system for the £100B+ financial advice market. Help build the infrastructure powering compliance and workflows, using Go and TypeScript, with a genuine stake in a cashflow-positive startup.

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. Gaia.family is a Series B fertility fintech backed by Atomico, reimagining how people pay for family-building. 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. Midnite is a Series C betting platform backed with substantial funding and built on a modern Python/AWS stack. 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. Midnite is a Series C startup with $75M+ in funding and rapid growth, offering a chance to shape scalable architecture; no gaming experience required.

Lead Backend Engineer at Midnite

Lead Backend Engineer at Midnite to spearhead a brand-new AI and Back Office team. This is a rare player-manager opportunity at a remote-first UK Series C startup, offering autonomy to build greenfield internal platforms and shape how a fintech uses AI to boost engineering workflows. 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.

Founding Forward Deployed Engineer at Corvera

Founding Forward Deployed Engineer at Corvera in San Francisco, CA, to build the AI-native operating system for CPG brands. You’ll work on autonomous agentic workflows and ship production features daily as part of a YC-backed team. The role offers ownership of end-to-end impact in a fast-growing company shaping agentic AI for a global market.

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.

Founding Engineer joining a small, elite team to move V1 from prototype to production. The company is building an edge compute ecosystem to run real-time AI directly in clinical exam rooms. Based in San Francisco, this early role offers the chance to shape the product from day one while tackling hardware constraints, GPU acceleration, and distributed systems.

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.

Founding Engineer at ThinkDivergent

Founding Engineer at ThinkDivergent in London, building the Neurodevelopmental Operating System for ADHD and autism care. You’ll be the first engineering hire, working with the CTO in an AI-first environment to ship production-grade healthcare software used on live NHS contracts. The role offers high equity and a chance to shape a scalable platform at the intersection of AI and healthcare.

Product Engineer at Incident

Incident.io is hiring a Product Engineer in London to help shape the future of incident response. Backed by $100M from Index Ventures and Insight Partners, Incident.io is a Series B startup. 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.

AI Engineer at Tracelight

AI Engineer at Tracelight in London, UK. Backed by $3.6M in seed funding and already used by six of the top ten global consulting firms. This role offers the opportunity to contribute to high-impact AI systems in a fast-paced, high-autonomy environment.

Founding Head of Growth at Letly

Join a high growth, AI native fintech backed by industry heavyweights from Revolut, Raba, and Factorial. As the Founding Head of Growth, you’ll own the acquisition engine for a platform reimagining how 108bn in rental properties are managed and financed. We are looking for a disciplined, hands on operator with 5 8+ years of experience who can bridge the gap between digital experimentation and real world London distribution. If you thrive on building compounding growth loops and want to report directly to a CEO with Goldman Sachs pedigree, this is your chance to define the trajectory of a seed stage standout.

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.

Staff Software Engineer at Fanvue

Join a Sunday Times Best Places to Work 2025 winner that has surpassed $100M+ ARR with 450% YoY growth. As Staff Software Engineer, you will be the most senior individual contributor architecting a platform for 17 million monthly users. This is a rare opportunity to lead a massive monolith to services decomposition while building out core AI infrastructure, including vector stores and LLM orchestration. If you have 10+ years of experience scaling high growth consumer platforms like Monzo or Revolut and want to define the technical future of creator monetization, this is your next move.

Full Stack Engineer at Adonis

Healthcare providers lose billions every year to denied claims and broken billing workflows. Join this General Catalyst backed Series C startup in NYC as a Full Stack Engineer to build the AI platform fixing it. With $95M raised and 4x revenue growth, you'll work at 3 World Trade Center alongside an elite team from Google and Cedar. If you have 3+ years of experience with Python and React, plus a background in health tech, this is your chance to own end to end features that directly impact how healthcare gets paid.

Senior Software Engineer at Theseus

Join an elite 6 person team in San Francisco building the future of autonomous navigation. This YC S24 startup just raised $4.3M from First Round Capital to provide GPS denied positioning for the US DoD and NATO. As a Senior Software Engineer, you will own the operator facing product layer—building the mission planning and data tools that keep aircraft on course in contested environments. If you are a high caliber builder with 3+ years of experience in React and Python who wants to ship software used in real world military exercises, this is your chance to build critical defense infrastructure from the ground floor.

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.

Are you tired of AI demos that look great but fail in production? This San Francisco based startup is hiring an AI Systems Engineer to build autonomous agents that actually work. Backed by top tier VCs, they are moving beyond prompt engineering to create robust infrastructure for multi step workflows, validation, and failure handling. If you have a strong background in systems thinking and backend infrastructure, this is your chance to solve the biggest bottleneck in AI today: reliability. Help define the future of autonomous software in a high impact role with significant equity.

Senior Full-Stack Engineer at Systm

Are you ready to build the financial operating system for the stablecoin era? We are looking for a Senior Full Stack Engineer to serve as a founding technical leader, owning the architecture of a platform that combines Stellar/USDC rails with an AI powered Agentic CFO. Founded by the former COO of a major European crypto payments company and backed by strategic VCs, this startup already has 25+ design partners signed. If you have 5+ years of experience and a track record of shipping AI powered systems at the ground floor, this is your chance to claim 1–5% equity and define the future of programmable finance.

Are you passionate about the future of software development? This fast growing AI startup is looking for a University Program Manager to lead their expansion into top tier computer science programs. You will own the student ambassador strategy, scale global discount programs, and build deep relationships with the next generation of engineers. If you thrive in a high autonomy, talent dense environment and want to shape how students build with AI, this is your chance to define a category leading community program from the ground up.

Demand Generation Director, Logistics & Supply Chain AI at Raft

Join Raft, the Series B startup backed by Bessemer, as they reshape the $19 trillion supply chain industry with enterprise AI. As Demand Generation Director, you will architect the top of funnel engine from scratch, leveraging a modern AI stack to drive high velocity ABM strategies for global logistics leaders. If you are a data obsessed growth builder who thrives in high stakes environments and wants to own the revenue journey for a category defining product, this London based leadership role is your next big move.

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.

Founding Engineer at Delfa

Join an elite team of researchers and engineers from ETH Zurich and Roche at a fast growing London startup fixing the $120B clinical trial bottleneck. With seven figure ARR and 25% monthly growth, this Air Street Capital backed venture is using autonomous AI agents to get life saving treatments to patients faster. As a Founding Engineer, you'll own 0→1 systems from architecture to deployment, working onsite in a high talent density environment to solve one of healthcare's most critical infrastructure problems.

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. Led by a Head of Engineering who scaled teams from zero to 140+ people through a $35M Series B, this role offers the chance to own the architecture of an AI assistant automating 90% of manual property workflows. 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.

Sales Associate at Humaans

Join a $20M Series A startup that is redefining the workplace infrastructure with agentic AI. Backed by the founders of Slack, Figma, and Shopify, this London based team is looking for a Sales Associate to drive their outbound engine. If you have 1 2 years of SaaS experience and want to work alongside top tier operators while earning market leading compensation and unique equity benefits, this is your chance to own the next generation of HR technology.

Interim Finance Director at Lottie Organisation

Are you a seasoned finance leader ready to scale one of Europe’s fastest growing tech companies? This Accel and General Catalyst backed startup is seeking an Interim Finance Director to lead their finance function through a critical Series B preparation phase. Based in London with a hybrid model, you will manage a talented team, drive strategic FP&A, and partner directly with the CEO to revolutionize the social care industry. If you have a background in venture backed startups and a passion for mission driven work, this is a career defining opportunity to lead a top ranked UK startup.

Active Device Specialist at Scarlet

Are you an engineer with deep expertise in active medical devices? A high growth, Creandum backed healthtech leader is looking for their first Active Device Specialist to bridge the gap between AI software and hardware certification. You will have the unique opportunity to build an entire assessment function from the ground up, defining how the world's most innovative medical hardware reaches patients. With exponential revenue growth and a government backed mandate, this London based role offers a rare chance to shape the future of healthcare infrastructure while receiving meaningful equity and a pioneering leadership mandate.

Founding Engineer at Corgi

Insurance is a $6 trillion industry running on 30 year old infrastructure, and this YC S24 standout is rebuilding it from scratch. With a $108M Series A at a $630M valuation and $40M+ ARR, they are a licensed carrier—not just a broker—placing AI at the very core of underwriting and claims. They are looking for a Founding Engineer in London to join their Strategic Projects team. If you have 2 4 years of high growth experience and want to ship at a pace that scares most people while working alongside talent from Google and Perplexity, this is your career accelerator.

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.

Software Engineer (Infrastructure) at Greptile

Join a $30M Benchmark backed startup in San Francisco that is redefining software quality by building AI agents that autonomously validate code. As the infrastructure lead, you’ll own the systems powering code reviews for over 7,000 customers including Nvidia and Coinbase. We are looking for a deep infrastructure expert who loves tinkering with Kubernetes, Docker, and sandboxed environments to scale a platform already reviewing 1 billion lines of code monthly. If you thrive in high velocity, in person environments and want to own the compute backbone of the next generation of developer tools, this is your role.

Founding Engineer at Tracebit

We are looking for a Founding Engineer to join one of London's fastest growing security startups following a $20M Series A led by FirstMark. This is a rare opportunity to build at the ground floor with a team that has already doubled ARR and signed clients like Riot Games and Snyk. If you want to ship high scale C code daily, fix critical security flaws in global AI systems, and work directly with technical founders in a high energy London office, this role is for you. Help us define the next generation of cloud intrusion detection.

Product Manager at Saturnos

Join the UK market leader building an AI powered operating system for financial advisers. Backed by a $15M Series A from Singular and YC S24, this high conviction fintech is automating complex compliance and research for 450+ firms. As a Product Manager reporting to the CEO, you'll own high stakes domains end to end, shipping AI native features that change how financial advice is delivered to millions. If you have 3 7 years of B2B SaaS experience and a passion for LLMs in regulated markets, this London based role offers massive impact and equity.

Software Engineer at Strala

Join a hyper growth AI startup that is rebuilding the $300B insurance industry from the ground up. Backed by a recent $50M Series A and Peter Thiel’s Founders Fund, this San Francisco based team has reached multi seven figure ARR in less than a year. 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.

Software Engineer at Sapiom

Join the elite team building the financial infrastructure for the agentic economy. Backed by $15M from Accel, Anthropic, and Coinbase Ventures, this San Francisco based startup is creating the essential KYA and payment rails that allow AI agents to autonomously transact in the real world. Founded by former Shopify Payments leadership, they are seeking bar raising engineers from backgrounds like Stripe and Modern Treasury who are ready to build the missing layer of the API economy. If you want to define how money moves in the era of AGI, this is the ground floor opportunity you’ve been looking for.

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.

Smart Contract Engineer at NAVI Labs

Build the foundational layer of DeFi on the fastest growing Layer 1. This market leading protocol dominates the Sui ecosystem with $380M+ TVL and nearly a million users. Backed by OKX Ventures and Hashed, you will own the design and security of mission critical smart contracts that power the network's most trusted lending and LSDeFi platform. If you want to ship Move code that manages hundreds of millions in assets alongside an elite 15 person engineering team in the Bay Area, this is your chance to lead the next wave of DeFi innovation.

Join a team of elite engineers from Waymo and SpaceX building the simulation platform for AI agent self improvement. As a Founding Engineer, you'll develop the containerized sandboxes and orchestration systems that frontier AI labs use to train and evaluate their most capable models. This is a rare opportunity to apply the engineering discipline of self driving cars to the LLM era, owning massive technical domains in a high trust, seed stage environment with significant enterprise traction. If you thrive on technical ambiguity and want to build the infrastructure layer for the future of AI agents, this is the role for you.

Senior Multidisciplinary Engineer at Unlimited

Building data centers and power plants currently takes years of manual engineering; this a16z backed startup is doing it in minutes. We are looking for a Senior Multidisciplinary Engineer—ideally an alum of Tesla, SpaceX, or Anduril—to join a 10 person team already generating millions in revenue. If you have 7 15 years of experience shipping hard hardware and are ready to use AI to automate the future of American infrastructure, this is the most significant product market fit you will find in SF. Relocation and visa support available for those ready to build in person.

Are you a builder ready to transition into a Technical Co Founder role? This VC backed fintech startup in London is hiring its first employee to lead the development of AI powered transaction readiness infrastructure. You will own the entire technical roadmap, building LLM agents that automate financial due diligence for capital markets. With 10 15% equity on the table and a validated product already in beta, this is a rare opportunity to shape a high stakes AI platform from the ground up alongside a seasoned serial founder. If you have 5+ years of AI experience and a founder's mindset, this is your next move.

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.

QA & Test Engineer at SAIF Autonomy

As autonomous systems move from labs to the real world, the critical question is trust. This Fusion Fund backed startup is building NEXUS, a real time safety guardian that acts as a runtime assurance layer for AI driven platforms. They are looking for a QA & Test Engineer to own their verification program as they move through DO 178C certification for high profile clients like the UK Ministry of Defence and the European Space Agency. If you have experience in safety critical aerospace or defense software and want to build a test function from the ground up in an agile, high impact environment, this is your chance to shape the future of certifiable AI.

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.

Product Engineer at Zavopay

Join an elite founding team at a YC backed (F25) startup that has already scaled to 400+ restaurants and retail businesses since launching in May 2025. As a Product Engineer, you'll ship full stack features across Next.js dashboards and React Native terminals, while building AI agents that automate complex operations. This London based hybrid role offers meaningful equity and the chance to disrupt the fragmented POS market alongside experienced founders in a high intensity, high growth environment.

Full Stack Engineer at Aisy

Join a $2.3M seed funded AI security startup founded by a former HackerOne leader who managed programs for the Ministry of Defence. 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.

Founding Engineer at Kiloforge

Join an elite team of AI researchers from Google Brain and DeepMind building the world's first autonomous app factory. Backed by a16z and YC Partners, this startup is disrupting how software is built by shipping one niche focused micro app every single week. As a Founding Engineer in San Francisco, you’ll earn up to $225K plus significant equity while building an automated pipeline that turns specialized community pain points into $1M ARR products. If you have 5+ years of experience and a passion for shipping at terminal velocity, this is your chance to shape the future of AI native engineering.

Are you a high agency engineer ready to build the future of autonomous work? We are looking for a Full Stack Software Engineer to join a well funded AI startup in Redwood City. You will have total ownership over features, building sophisticated AI agents that replace manual labor with intelligent, multi step workflows. If you have 8+ years of experience, a top tier CS background, and already use AI tools to supercharge your coding velocity, this is your chance to lead 0 to 1 product development in a high performance, startup velocity environment.

Head of Content & Sales Enablement at Thrive

Join a UK based startup backed by three rounds of funding as they move from an assessment tool to a category defining behavioural platform. This is a high impact role for a prolific writer who can turn millions of data points into industry leading research while arming a growing sales team with the narrative they need to close. Reporting directly to the CEO, you'll own everything the company says publicly and how it sells privately, scaling inbound demos from 5 to 25 per month. If you have 5+ years in B2B SaaS content and a passion for psychology led tech, this is your chance to build a legacy brand.

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.

Design Engineer at Aranya

The personal computer era is evolving into the personal cluster era, and we are building the operating system to power it. We are looking for a world class Design Engineer to join our founding team in San Francisco and define how humans interact with distributed systems. If you have the engineering chops to ship production React and the design taste to build the next 'desktop metaphor' for Kubernetes, this is your chance to own the interface of a new computing paradigm. Join a high velocity team of four as we make distributed infrastructure as intuitive as a MacBook.

Venture Builder at Telemachus

Telemachus is a venture factory backed by Seedcamp and Backed that is re imagining how companies are built in the age of AI. They find inefficient businesses and clone them from scratch using LLMs, with their first unit hitting $1m ARR in just three months. They are looking for high trajectory Venture Builders (1 4 years experience) to lead new business units. This role offers a unique £1m completion bonus per team member and the chance to run your own business unit. If you are an intellectually curious builder who wants founder level impact with VC backing, this is a one of a kind opportunity in London.

Senior Embedded Systems Engineer at Rivan Industries

Join the mission to decarbonise heavy industry at a London based synthetic fuel startup that has already deployed the UK’s largest plant. As a Senior Embedded Systems Engineer, you will own the end to end hardware and software architecture for modular DAC systems and electrolysers. This is a rare opportunity to join an early team planning to scale 1000x in the next 24 months, offering significant equity, a £6k annual housing stipend to live near their Bermondsey HQ, and the chance to make synthetic fuel cheaper than fossil fuels. Perfect for an expert in PCB design and industrial firmware looking for massive climate impact.

Founding Software Engineer at Crumb

Are you ready to be the first engineering hire at a startup reshaping the legal profession? We are looking for a Founding Software Engineer to build agentic AI tools that automate high stakes legal workflows. Working directly with a technical co founder, you will own the entire stack—from React and Node.js to AWS infrastructure—without a PM in your way. If you have strong product instincts, experience with complex async workflows, and a desire to build something that defines an industry's future, this is the highest impact role you will find in London's AI scene.

Deployment Strategist at Deducta

Are you a top tier consultant tired of slow feedback loops and implementation free decks? This well funded London startup, led by Rhodes Scholars and ex Bain founders, is hiring a Deployment Strategist to own the delivery of their agentic AI platform for the world’s largest companies. You’ll embed with C suite stakeholders at household name enterprises to transform fragmented data into actionable intelligence, earning £120k while working in an elite 9 person team near London Bridge. If you have an MBB background and a quantitative edge, this is your chance to build a category defining AI company from the ground up.

Senior Backend Engineer at Duckbill

Tired of solving the 'wrong part' of cloud cost management? Join a high impact team building a consumption first financial data platform that tackles terabyte scale billing challenges for the Fortune 500. Founded by industry veterans with an audience of 35k+ professionals, this startup is moving out of stealth and looking for a Senior Backend Engineer to own the core Python services and ClickHouse architecture. If you want to build a platform that turns millions of rows of unstructured data into precise business intelligence while enjoying 100% covered premiums and early stage equity, this is the role for you.

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.

Are you a React expert tired of seeing finance teams struggle with manual spreadsheets? Join a fast growing fintech SaaS as a Mid level Frontend Engineer and help automate the month end close for thousands of organisations. With a stack featuring TypeScript and Tailwind, a salary up to £65k + equity, and a high ownership culture led by seasoned tech veterans, this is the perfect role for a startup ready engineer looking to build polished, impactful products. You'll enjoy remote first flexibility with weekly in person collaboration in London, working on a platform that is already winning global industry awards and scaling rapidly across international markets.

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.

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.

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.

Engineering Technician at Rivan Industries

Help decarbonize heavy industry by building the infrastructure of the future. This Bermondsey based startup, backed by Plural, 20VC, and the Collison brothers, has already deployed the UK’s largest synthetic fuel plant and is ready to scale 1000x. They are looking for a high agency Engineering Technician with 5+ years of experience in welding, machining, and fabrication to supercharge their iteration speed. If you have a passion for building complex physical systems and want a role with a £6k housing subsidy and unlimited PTO, this is the place to make a massive impact on climate change.

Computational Scientist at Rivan Industries

Join the team that recently deployed the UK’s largest synthetic fuel plant and is now scaling 1000x to make fossil fuels obsolete. As a Computational Scientist, you will be the 'puppet master' of the physical world, using bits to move atoms by building the simulation infrastructure that underpins a generation defining climate product. If you have 3 7 years of experience in process modelling and want to work at the intersection of Direct Air Capture and green hydrogen, this Bermondsey based role offers a £70k £80k salary plus a unique £6k annual housing subsidy to live near HQ.

Community & Creator Partnerships at Mozart AI

Imagine a world where everyone creates music together in real time. Mozart AI is making that a reality, with 100k+ users already creating over 1M songs. They are looking for a Community & Creator Partnerships lead to hyper grow their Discord presence and scale a performance based influencer engine. Backed by $7M from Balderton Capital and tech icons, this Central London role offers significant equity and the chance to be the face of a platform used by everyone from casual fans to A$AP Rocky’s producers. If you’re a product obsessed community builder, this is your stage.

Senior Electrical Design Engineer at Rivan Industries

Join a Plural backed deep tech startup that recently deployed the UK’s largest synthetic fuel plant. As Senior Electrical Design Engineer, you will own the power architecture for modular plants that turn CO2 into carbon neutral fuel. With a £10M seed round and backing from the founders of Stripe, this team is scaling 1000x over the next two years. If you want to build hardware that actually moves the needle on climate change, this is your chance to lead industrial scale design in a high growth, engineer led environment in London.

Founding Deployed Engineer at BUILD,

Join the team building the agentic AI stack for the physical world. Backed by the C suite of OpenAI and Blackstone, this seed stage startup is automating institutional real estate workflows 90% faster than humans. As a Founding Deployed Engineer, you'll bridge the gap between AI research and real world impact, working on site in NYC with trillion dollar asset managers to ship production grade agents. If you thrive on radical autonomy, extreme velocity, and want to see your code translate into massive infrastructure projects breaking ground, this is the definitive founder's track opportunity for 2024.

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. With 7 figure revenue already secured and a mission to automate complex institutional real estate workflows, this is a rare opportunity to join a high intensity team at the seed stage. 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. With $534M in funding and a spot on the Forbes Fintech 50, they are looking for a Staff Engineer to re architect their systems for the next phase of scale. 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.

Founding Engineer at Marloo

Join a high growth fintech startup backed by Blackbird ($2.7M raised) that is redefining financial advice through AI. As Founding Engineer in London, you won't just be taking tickets—you'll be the codebase authority, architecting a system from 0 1 that replaces decades old legacy software. Working alongside a high output team, you'll leverage LLMs to build agentic features and native mobile experiences that help families make better life decisions. If you're a builder who thrives on execution speed and wants to own the technical roadmap of a company growing 45% month over month, this is the role for you.

Product Engineer at Seal.run

Join a high impact YC S20 startup that is replacing the fragmented legacy software used in drug development with an AI native GxP Execution System. As a Product Engineer, you'll own critical systems design problems and build the infrastructure helping 50+ regulated companies—like Beckman Coulter—reduce paperwork by 80% and launch therapies faster. If you are a first principles thinker obsessed with shipping high quality products and thrive in an intense, high ownership environment in London or Research Triangle Park, this is the challenge you've been looking for.

Product Engineer at Gizmo

Join one of the UK's fastest growing AI startups as they scale a learning platform to 1 billion users. With 1.7 million monthly active users and $5M ARR, this $22M Series A company is looking for a Staff level Product Engineer to lead their AI initiatives. Working directly with the CEO, you will ship production grade LLM features and agentic workflows that redefine how the world learns. If you have 8+ years of experience and a passion for high impact AI, this Shoreditch based role offers up to £200k plus equity.

Founding Engineer at Fig AI

Food manufacturing is a $750B industry still running on pen and paper. This $1.8M pre seed startup, backed by Innovation Endeavors (Eric Schmidt's fund) and angels from OpenAI and Instacart, is building the AI agents that will finally automate it. 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.

Join an elite, small team building the world's most popular open source AI infrastructure. This Engineering Manager role offers the rare chance to stay hands on with cutting edge inference and training stacks while leading a 'cracked' team of PhDs and dropouts. With 30k+ GitHub stars and recognition from industry legends, you'll be at the forefront of decentralizing AI. Enjoy top tier equity, private healthcare, and the option to relocate to the Bay Area while shaping the future of open source technology.

Business Development Representative at Jigsaw Tech

Join one of the world's fastest growing Series A SaaS companies as a Business Development Representative in London. Founded by seasoned entrepreneurs with a previous billion dollar exit, Jigsaw is revolutionizing how global financial institutions and law firms visualize data. This role offers an incredible base salary plus uncapped commission, providing a high impact opportunity to build your career in the elite world of fintech and professional services software.

Data Infrastructure Engineer at zaimler

Most AI fails because agents can't reason over fragmented data. This Pear VC backed startup, founded by the former Chief Architect of Visa and LinkedIn’s Knowledge Graph lead, is building the context infrastructure for the agentic era. They are looking for a Data Infrastructure Engineer to build the distributed storage and query engines that allow AI to understand enterprise data at scale. With a $180k $240k salary and founding team equity, this is a rare opportunity to build the backbone of AI reasoning alongside world class systems pioneers in San Mateo.

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. Backed by a fresh, unannounced major seed round and a $4M pre seed, this London based startup features an elite engineering roster from DeepMind, Citadel, and Palantir. 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. Backed by a $15M Series A from Singular and Y Combinator, this YC S24 startup is building the operating system for financial advisers, already serving 600+ firms. 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.

Client Manager at Rise Accounting

Join Rise Accounting, a fast growing firm that has seen 120% growth in the past year, as a Client Manager in London. You will lead a team supporting innovative tech startups, manage a high impact portfolio, and enjoy a hybrid work model near Moorgate. If you are an ambitious accountant ready to scale with the UK’s leading professional service group for SMEs, this is your opportunity to double your career trajectory.

Founding Product Engineer at Briefcase

Join an ambitious founding team in London building the future of finance with a fleet of autonomous AI agents. This isn't just another SaaS tool; it's a complete reimagining of accounting workflows where you'll ship 20 30 times a day and own the product end to end. If you are a high agency engineer who thrives on urgency and wants to work with React, TypeScript, and the latest AI stacks alongside top tier talent, this is your chance to build a category defining company from the ground up.

Are you tired of building basic chatbots? Join a high caliber team of repeat founders in San Francisco to build a proactive AI mentor that actually understands humans. As a founding engineer at this well funded startup, you will solve massive technical hurdles in long term memory and agentic behavior while shipping a product designed to push people toward their goals. If you are a world class builder who wants to create a generational consumer company from the ground up, this is the seat for you.

Trainee IP Lawyer at Origin

Are you a STEM graduate or PhD frustrated by the traditional four year path to law? ORIGIN LIMITED is offering a radical, accelerated route to qualifying as an IP Lawyer in an AI first firm. Ditch the billable hours and lecture halls for direct mentorship from world class strategists while working with the pioneers of quantum computing, biotech, and neurosymbolic AI. If you have a 2:1 or higher in a technical field and want to protect the innovations of tomorrow, this is your seat at the table.

AI Engineer at Electric Twin

Join an elite team in London building the future of audience intelligence. This $14M Series A startup, backed by Atomico, LocalGlobe, and Marc Andreessen, is creating 'synthetic populations' that predict human behavior with 95% accuracy. 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.

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.

Lead Product Engineer at Fyxer AI

We are looking for a Lead Product Engineer to join an elite team that has scaled from $1M to $30M ARR in a single year. Ranked 7 on the a16z top AI apps list, this startup is solving the email productivity crisis with pure play applied AI. You will have total autonomy to lead product strategy and execution without PMs, working alongside former founders to ship systems used by millions. Backed by Madrona and Marc Benioff, this role offers London's highest compensation packages and a chance to build a $10B+ company from the ground up.

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.

AI Developer Tooling Engineer at Fanvue

Join a triple digit growth creator economy platform as their first AI Developer Tooling Engineer. With a $22M Series A and $100M+ ARR, this high scale startup is hiring a TypeScript expert to own their internal AI stack. You will build MCP servers and agent led workflows that act as a force multiplier for an elite engineering team featuring talent from Amazon and TikTok. If you're a power user of Cursor and Claude Code who wants to define the future of AI assisted development at scale, this is your next career move.

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. If you thrive in high ownership, on site environments in Shoreditch and want to solve genuinely novel technical problems, this Series B leader is the place to be.

Frontend Developer at NexusAM

Join an elite team of AI researchers and materials scientists from Imperial College London who are solving the billion pound bottleneck in metal 3D printing. As a Frontend Developer, you won’t just be building dashboards—you’ll be designing the interfaces that allow aerospace and medical engineers to visualize real time sensor data and 3D point clouds. This is a high impact role where you will own the frontend for a platform already being deployed to UK factories, turning complex AI insights into tools that ensure the safety of mission critical components. If you have strong React/TypeScript skills and a design instinct, this is your chance to build the future of advanced manufacturing in Central London.

Founding Forward Deployed Engineer at Arrakis Technologies

Join an elite team of former Palantir and DeliveryHero engineers at an Accel backed startup building the AI native OS for the physical economy. As a Founding Forward Deployed Engineer in London, you won't just build demos; you'll embed with commodity traders and manufacturing giants to deploy AI agents in mission critical environments. This is a high stakes, founding tier role where you’ll translate operational chaos into functioning systems, driving million dollar decisions in real time while owning the path to commanding entire industrial verticals.

Data Engineering Lead at 9fin

Data Engineering Lead at 9fin in London, owning the platform for data ingestion and customer-facing APIs. As a hands-on player-coach, you'll define the technical roadmap, grow a high-performing team, and ship rapidly. Backed by Spark Capital and Highland Europe in a Series B, 9fin offers the opportunity to shape data-as-a-product at a fast-growing fintech.

Lead AI/Python Engineer at LightWork AI

Are you a technically elite engineer ready to lead? This London based Service as a Software startup is looking for a Lead AI/Python Engineer to architect the future of autonomous property management. With a path to partnership and a mission to automate 80% of administrative tasks through cutting edge AI agents, you’ll mentor a growing team and deploy state of the art models into a massive UK market. If you have 7+ years of experience and a passion for building scalable, high impact systems, this Victoria based role offers the rare chance to shape a scaling startup's technology roadmap from the ground up.

Senior / Staff Product Engineer at Evervault

Join an elite team of 25 building the critical encryption layer for the world's most successful fintechs. Backed by Sequoia, Kleiner Perkins, and Index Ventures, this $46M funded startup is processing $5B+ in annual transaction volume. 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.

Business Development Representative at Scarlet

Are you ready to accelerate the future of healthcare? Scarlet is the only regulated Notified Body in Europe specializing exclusively in AI and software medical devices. We are looking for a high grit Business Development Representative to join our London team and own the outbound strategy for the world's most ambitious medical AI companies. With £70k £100k OTE, equity, and backing from Atomico, this is a unique opportunity to build the pipeline for life changing technology. If you have 2 5 years of B2B prospecting experience and a passion for mission driven work, join us in making healthcare universally accessible.

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.

Staff Engineer at Dayhofflabs

Join an elite team of researchers from DeepMind, Google, and CERN at a DCVC backed startup building the future of artificial biology. As a Staff Engineer, you will own the technical infrastructure for a revolutionary platform founded by the creator of AlphaFold. You'll bridge the gap between frontier ML models and production ready biochemistry tools, designing greenfield database architectures and scaling cloud systems that drive discovery in pharma, energy, and beyond. This is a high agency role for a generalist engineer who wants to shape the foundations of a company solving synthesis and compute through computational chemistry.

Kubernetes DevOps Engineer at Aranya

Building the 'operating system' for AI inference, this MIT founded seed stage startup is making distributed computing as accessible as the PC once was. They are looking for a Kubernetes expert who can move beyond managed services to build bare metal clusters from scratch for a $5B customer. You will work directly with a technical co founder who built infra at Crusoe Energy, owning the full stack of GitOps, GPU orchestration, and high performance networking in San Francisco. If you want to skip the platform team bureaucracy and ship production grade infrastructure for the AI boom, this is your role.

AI Engineer at Solveintelligence

Join the elite engineering team at Solve Intelligence, a Series B AI startup backed by $55M from YC, Microsoft, and the founders of Stripe and Perplexity. 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 Rivulo

Join an elite team as the first technical hire for a London based AI startup led by founders with multiple successful exits. This isn't just another wrapper; you'll be building the infrastructure that allows non technical teams to deploy complex, reliable agent led workflows. With 2% equity, radical autonomy, and a technical stack moving toward the frontier of multi model orchestration, this is a career defining opportunity to shape a company from the ground up while solving deep engineering challenges in LLM reliability and browser automation.

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.

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.

Are you ready to build the first AI first medical practice from the ground up? We are looking for a Founding Product Engineer to join a well funded healthtech startup in San Francisco. Unlike typical health apps, you’ll build the real world interfaces used by clinicians to diagnose and treat patients daily. If you are a React and TypeScript expert who wants to ship code that actually saves lives while working alongside a founding team of serial entrepreneurs, this is your chance to own a core piece of the future of healthcare.

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 AI Engineer at Fleetcraft

Join a high growth aerospace startup backed by Susa Ventures (early investors in unicorns and Anduril) as a Founding AI Engineer in London. You will build production grade AI systems that modernize how aircraft are maintained and manufactured, working with a team of industry veterans who have launched satellites and run major airlines. With a valuation that doubled in just one year and active contracts across three continents, this is a rare opportunity to own the AI stack at the intersection of heavy engineering and cutting edge software. If you have 2+ years of experience with Python and LLMs and want to solve real world problems that keep the world flying, apply now.

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. Backed by angels from OpenAI and Hugging Face, you'll own the entire UX for a platform already processing thousands of mission critical healthcare tasks daily. 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.

Senior Product Engineer at Tavus

Are you ready to build the future of human computer interaction? This Sequoia backed Series B AI research lab is hiring a Senior Product Engineer to develop real time AI Humans that see, hear, and respond with empathy. With a fresh $40M in funding and a team from Y Combinator and Scale Venture Partners, you'll own the platform that powers sub second latency conversational video. If you're a React expert with a passion for 0→1 product builds and a drive to ship generational technology in San Francisco, this is the career defining role you've been looking for.

Founding Engineer at Getjelly

Join a profitable, fast growing startup that is digitizing the back of house for hundreds of restaurants across the UK. Backed by the early investors of Revolut, Wise, and Just Eat, this company is replacing manual spreadsheets with an AI powered operating system. As a Founding Engineer, you will have significant equity and the autonomy to ship production ready code in weekly cycles. If you want to see your work used daily by thousands of users and work directly with a founder who understands the industry from the kitchen floor up, this is your chance to build a category defining product in London.

Product / Software Engineer at Electric Twin

Most organizations make massive decisions based on gut feel. Join a London based team backed by over £10M in funding to build the software that changes that. Led by founders with deep experience at the highest levels of government data and mass testing, this startup uses AI powered synthetic audiences to simulate human responses in real time. If you are a product minded engineer who loves Python, React, and shipping features that solve complex orchestration problems without the hype, this is a rare chance to shape a platform while it's still malleable.

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.

Member of Technical Staff at Roam

Join an elite team of researchers from DeepMind and OpenAI at this San Francisco based Applied AI Lab. You’ll be building the world's most advanced 3D generation engine, enabling anyone to create studio quality multiplayer games in under two minutes. With 13M+ users already in the ecosystem and backing from T1 VCs behind ByteDance and Anduril, this founding role offers a rare chance to ship frontier diffusion and agentic models at massive scale. If you are a high velocity engineer ready to define the next generation of interactive 3D worlds, this is the most compelling sprint in AI right now.

Forward Deployed Software Engineer at Northslope Technologies

Join an elite engineering team from Palantir, Google, and Uber at a Series A startup that has already seen 7x revenue growth. 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.

Principal Engineer at Perry

Are you ready to redefine how venture capital operates? This high velocity Legal AI startup is seeking a Principal Engineer to architect a platform that cuts legal busywork by 10x for the world's top investment funds. You'll lead the charge in orchestrating multi model LLM pipelines and building secure document processing engines that influence real deal outcomes. With 0.5 1.0% equity and a culture that prioritizes shipping over talking, this is a rare opportunity to join a well funded founding team and own core systems from day one. If you have 8+ years of full stack experience and a bias for action, help us build the category defining platform for VC legal teams.

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 ready to be the first hire at a high growth AI startup? We are looking for a Founding Full Stack Engineer to build a revolutionary supply chain platform from the ground up. With six figure revenue already secured and backing from top tier VCs, this is a rare opportunity to own a product end to end and shape the future of hardware development. If you thrive in high ownership, in person environments and want to ship code that impacts global users daily, this San Francisco based role is for you.

Full Stack Engineer at Loxacover

Full Stack Engineer role at Loxa in Central London. Loxa (Loxacover.com) is building an embedded insurance platform and has already completed 44+ retail integrations. As a mid-level engineer with Ruby or Python skills, you’ll have ownership and equity to shape the technical foundations and scale the product across Europe and the US.

Are you ready to build the future of human computer interaction? Join a premier Series B multimodal AI lab as a Senior Software Engineer and lead the development of real time conversational video interfaces. In this high impact role, you'll solve complex challenges in low latency communication, multiprocessing, and multilingual AI simulation. Backed by the world's top tier VCs, this team is creating AI humans that can see, hear, and empathize at scale. If you are a Python expert with a passion for cutting edge AI and high performance systems, this is your chance to ship software that defines an entirely new category of technology.

Founding Full-Stack + AI Engineer at Meshedcover

Commercial insurance is one of the last massive, undisrupted markets—until now. We are seeking a Founding Full Stack + AI Engineer to join an elite team of exited founders and industry operators building the 'Revolut for commercial insurance.' This isn't a deck only startup; with 47 signed partners and production AI already slashing quote times by 85%, the system is live and scaling. You'll work directly with the CTO to architect an AI native operating system for a £15B market, building everything from multi agent orchestration to core broking engines. If you're a high agency builder ready to own a category defining product, this is your seat.

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.

Customer Success Manager at Plain

Are you a product driven CS leader looking to join an elite team backed by Index and Battery Ventures? We are building the support platform technical teams actually love—used by industry leaders like Cursor and Raycast. As our second Customer Success Manager, you'll be 'customer zero,' using our own speed optimized tool to manage high value accounts while directly shaping the product roadmap. If you have 2 3 years of experience at a high quality SaaS startup and want to build a CS function from the ground up in San Francisco, this $130k $160k role with meaningful equity is for you.

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.

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 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.

Are you a Senior Photonics Design Engineer passionate about pushing the boundaries of silicon photonics? Join a cutting edge startup developing active photonic switches for large scale deployment, driving innovation in next generation optical interconnects. This is a unique opportunity to design, simulate, and optimize Photonic Integrated Circuits (PICs) from concept to production, contributing to high performance photonic systems alongside world class experts in a fast moving, high impact environment. If you're ready to make a significant impact on the future of optical computing, we want to hear from you!

Senior Rust Engineer at Cryptio

Join the engineering team building the financial infrastructure backbone for institutional crypto. This $25M Series A startup, backed by BlueYard and Point Nine, processes over 1 billion monthly transactions for giants like Circle and Gemini. As a Senior Rust Engineer, you'll solve massive scale data reconciliation challenges using Rust and PostgreSQL, building the auditable systems that allow the world's largest enterprises to bring billions of dollars on chain. If you thrive on high performance architecture and deep technical craft, this is your chance to define a new category of institutional fintech.

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.

Are you a Fullstack Engineer eager to shape the future of AI? Join a well funded, fast growing startup backed by top tier VCs, building a cutting edge AI platform. This is a unique opportunity to contribute across the full stack, from robust backend systems to dynamic frontend applications, and directly influence product strategy in a collaborative, ambitious environment.

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

Founding Engineer (Competitive + Equity) at Well funded AI platform Founding Engineer

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.