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

Search & AI Retrieval Lead at proSapient

Join proSapient as a Search & AI Retrieval Lead in London, UK, shaping the technical strategy to turn unstructured knowledge into insights. You will build a hybrid Graph RAG and GNN reranker with Google and own the search stack. This is a high-autonomy, staff-level role to define the platform for the world's top Private Equity firms.

Founding Recruiter at Costanoa Ventures

Founding Recruiter at Costanoa Ventures in San Francisco, CA, you will own the full lifecycle recruiting for engineering and GTM roles as the company scales from 15 to 55+ employees. Costanoa Ventures backs an early-stage AI startup that serves five of the top 10 US mortgage lenders. As the first in-house recruiter, you will shape the culture and recruit for technical roles in a company.

Product Designer at Gocertify

Join Gocertify as a Product Designer in a remote, profitable bootstrapped UK tech company. Shape verification experiences used by over 2 million shoppers and support a platform generating £125m+ in annual retail sales for Samsung and Farfetch. In a small, high-impact team of 20, you’ll own end-to-end design, leverage AI-assisted tools, and enjoy a remote-first culture with monthly London meetups.

Senior Information Security Officer at Definely

As the Senior Information Security Officer at Definely, you will own the security posture for the platform and lead ISO and SOC compliance. The role offers £65K–£85K plus equity and a bonus up to 16%, with a London hybrid setup and an opportunity to shape.

Social Lead & Creator in Residence at Mozart AI

You will be Mozart AI's first Social Lead & Creator in Residence in Central London. Mozart AI is a London-based AI music startup backed by Balderton Capital and the founders of Eventbrite and Frame.io. The role offers the opportunity to build a content factory from scratch and secure significant equity in a fast-growing company.

Product Manager (Agents) at inploi

Lead Product Manager for Agents at inploi, owning the technical execution and customer loop for production AI systems. inploi is a high-growth London startup shipping AI agents to source, score, and interview for enterprise clients such as Boots and the NHS. The role offers £80k-£110k plus equity and autonomy to define the enterprise hiring category from its Haggerston base.

Founder's Associate at Internationalhustlers

Founder's Associate role at Internationalhustlers.co.uk in London, working directly with the founder on operations and growth. The bootstrapped startup has generated £1.5M+ in revenue and 60 million organic views, and you’ll help tackle the company’s top constraints as it scales toward higher MRR. With 1-3 years of startup experience, you’ll receive 2-5% equity and a salary in the £60k-£80k.

People Operations Lead at Withshepherd

The first People Operations Lead at Withshepherd.com in San Francisco will build the function from scratch. This on-site role offers a greenfield opportunity to design performance frameworks, compensation bands, and manager development programs to.

Transfer Pricing Manager at Caribou

Transfer Pricing Manager at Caribou in London, UK, leading internal transfer pricing initiatives. Caribou is a VC-backed fintech scale-up expanding its global footprint. The role lets you own transfer pricing and build global tax frameworks from the ground up.

R&D Tax Specialist at Caribou

Join Caribou as an R&D Tax Specialist in London. Help build and launch Caribou's R&D tax product from the ground up. This role offers a chance to codify tax expertise into a scalable tech platform that automates UK tax credits for thousands of businesses.

Research & Innovation Programme Manager at Hesta Health Limited

As Research & Innovation Programme Manager at Hesta Health Limited in Central London, you will lead a multidisciplinary programme. Hesta Health Limited is building an AI-powered, clinically validated system to transform postnatal care, backed by a £1.5m Innovate UK-funded project. You will coordinate NHS trials, regulatory SaMD work, and technical infrastructure to deliver a regulator-ready.

Video Lead at Scarlet

Video Lead at Scarlet in London, UK. Scarlet is building the defining media voice for healthcare innovation, backed by Creandum and experiencing rapid growth. You will own the production function end-to-end, from concept to final cut, delivering documentaries and social content as a solo unit with full creative control and the opportunity to shape the AI-driven healthcare narrative.

Senior AI Product Designer at Mustard Navy

Senior AI Product Designer at Mustard Navy in London. Mustard Navy is London's first specialist AI product design agency for healthtech and sustainability pioneers. This role offers the chance to shape zero-to-one products, explore Vibe Coding and AI workflows, and contribute to growing the business.

Technical Recruiter at LlamaIndex

As a Technical Recruiter, you will own end-to-end hiring from AI/ML engineers to GTM leaders. You’ll join LlamaIndex, a fast-scaling San Francisco startup building the document infrastructure layer for AI agents. This role offers the opportunity to shape hiring practices and culture as the team grows.

Product Builder at Anima

Product Builder at Anima, London-based, owning major surfaces end-to-end. Anima is a YC-backed team of former founders building the AI clinical operating system for the UK, serving 10% of the population. The role offers a fast path from discovery to launch with equity ownership on high-impact healthcare products.

Senior Project Manager at Padelsocial.club

Senior Project Manager role at Padelsocial.club in London. Padelsocial.club is an Accelerate Ventures-backed startup building the UK's premier network of premium padel clubs. You will lead a national rollout, taking ownership from external consultants and managing everything from groundworks to high-end clubhouse fit-outs.

Founding CX Lead at Grw AI

You will serve as Grw AI's Founding CX Lead, building the CX function from the ground up. Grw AI, a San Francisco-based AI startup backed by NextView and Precursor, is redefining sales operations.

Product Builder at Kyra

Join Kyra in London as a Product Builder responsible for the end-to-end discovery-to-delivery lifecycle. Kyra is a profitable, fast-growing startup that works with global brands. The role offers the opportunity to shape new AI-enabled features for brands like Nike and H&M.

Product Design Lead at Clove

Product Design Lead role at Clove in London, UK. Clove is a high-growth London fintech backed by a $14m pre-seed from Accel. You will own design direction end-to-end, from the live Workplace product to the v1 launch of a regulated Advice experience.

Strategic Project Lead — Data Operations at Turing

As Strategic Project Lead - Data Operations at Turing in San Francisco, you will run the data infrastructure and high-revenue delivery pipelines that power leading AI labs. Turing is a San Francisco-based AI research accelerator partnering with labs like OpenAI and DeepMind, coordinating thousands of expert contributors to train world-class models. The role offers a high-impact leadership.

Applied AI Lead at Alternative Payments

As Applied AI Lead at Alternative Payments in New York, you will own the internal AI layer. You'll partner with the founding team to deploy Claude-powered workflows, MCP integrations, and security standards. This high-impact role offers equity and a chance to shape AI-native platforms for SMB finance at scale.

AI Coach at Multiverse

AI Coach at Multiverse.io in London, UK. Join the UK’s first EdTech unicorn to mentor professionals in generative AI and lead hands-on learning programs that deliver ROI. Requires 3+ years of professional data experience and includes 60+ hours of dedicated annual upskilling for you.

Business Operations Manager at Maze

Join Maze as the first Business Operations Manager, reporting to the VP of Operations, and build the company’s operational backbone. Maze is a UK-based AI cybersecurity startup backed by Theory Ventures. This fully remote role lets you own financial modeling, board packs, compliance and people ops while shaping an AI-native culture with a founding team from Meta and Amazon.

Design Systems Advocate at zeroheight

As a Design Systems Advocate at zeroheight, you bridge designers and engineers amid the shift to AI‑driven development. You will own strategic partnerships, speak at major industry events, and help scale design systems for teams worldwide.

Medical AI Scientist at Scarlet

As Medical AI Scientist, you will evaluate model performance and clinical evidence for cutting-edge medical AIs to ensure safe and timely access for patients. Scarlet is a London-based healthcare startup authorized by governments to grant market access for innovative AI medical devices. This role offers the opportunity to work with clinicians and engineers to advance AI medical devices at Scarlet.

Senior Product Designer at YOW TV LLC

Senior Product Designer at YOW TV LLC in San Francisco leads the UX strategy for a next-generation streaming platform. With 6+ years of experience, you will bridge technical complexity and elegant design while shaping a scalable design system. The role offers autonomy, hybrid collaboration, and the opportunity to contribute to a growing media-tech startup.

Data Scientist at cofounder

Join cofounder.co as the first Data Scientist in New York, defining the ML function and shipping production systems processing 18B+ tokens monthly. The company is building an AI agent orchestration platform backed by $8.7M from Union Square Ventures and Acrew Capital. This equity opportunity lets a Python expert with NLP/LLM experience own a domain from zero to one.

Founding Hype Lead at Octet

Founding Hype Lead at Octet in London will shape real-world stunts into digital artifacts. Octet is a London-based startup, backed by Variant and ex/ante, founded by repeat entrepreneurs and an MIT Professor to develop cryptographic proof of physical reality. The role offers an opportunity to build a movement from the ground up with meaningful equity.

Founding Engineer at Y/n

Founding Engineer at Y/n in San Francisco, owning the app surface and the recommendation engine. Y/n is backed by $14M from Sequoia and Kleiner Perkins and serves 2 trillion tokens monthly with interactive stories. You will work with the founding designer of Substack and a pioneering AI researcher, with substantial ownership and equity as the company scales.

UK Head of Clinical Operations at Fella Health

As the UK Head of Clinical Operations at Fella Health, you will lead a senior team of 50+ prescribers. Fella Health is an AI-first healthcare company backed by Y Combinator and the founders of LinkedIn and Revolut, serving over 100,000 patients. You will design the protocol-driven operating system to scale clinical services and gain meaningful equity in a high-growth environment.

Head of Legal, Risk and Compliance at Quartz

Quartz seeks a Head of Legal, Risk and Compliance in London to lead its first dedicated compliance function for an AI-driven wealth management platform. As SMF16/17 holder, you will be a strategic partner shaping how regulated technology delivers tailored wealth advice at scale. This founding-team role offers meaningful equity and the chance to define a new category of fintech regulation.

Business Operations & Strategy Associate at Alternative Payments

Join Alternative Payments as a Business Operations & Strategy Associate in New York. As the fourth hire on the Strategy & Ops team, you’ll apply investment banking modeling to help build a financial operating system for SMBs under the COO.

Lead Product Designer at Faculty

Lead Product Designer at Faculty, a pioneering AI consulting firm being acquired by Accenture in London. You will define the vision for Decision Intelligence tools that support drug research for major pharma clients. The role offers the chance to lead AI design strategy with a £110k salary and a culture of intellectual curiosity.

Senior Product Manager at 9fin

Senior Product Manager for the Deals team at 9fin.com in London. 9fin.com is a fast-growing private tech company backed by £170m to modernize the debt market, and you’ll work with the CEO and C-suite to shape the roadmap for core financial instrument products. The role offers an equity component and the chance to own the strategy for a platform used by 300+ blue-chip institutions, requiring 5+.

Senior Product Designer at Humaans

Senior Product Designer at Humaans in London, UK. Lead a product area from conception to launch and define the platform’s visual and interaction language.

Senior Product Designer at Deducta

Senior Product Designer at Deducta in London, UK. Deducta is a London-based innovator applying Michelin-star hospitality principles to product design. You will lead human-centric interfaces and help build a product whose emotional connection is its core differentiator.

Product Designer at Model ML

As Product Designer, you will own the end-to-end UX for Model ML in London, crafting data-rich interfaces used by PE firms and investment banks. You will work directly with the founding team to shape the future of agentic AI in finance and ship high-ownership work in a fast-paced.

Product Designer, Funds at AngelList

Product Designer on the Funds team at AngelList in San Francisco. AngelList powers 57% of top-tier U.S. VC deals and supports $171B+ in assets by rearchitecting the financial infrastructure with AI to streamline back-office workflows.

Deployment Strategist at Valon Technologies, Inc.

As a Deployment Strategist at Valon Technologies, Inc. in San Francisco, you will embed with major financial institutions to modernize legacy systems with AI. The role offers high ownership and equity and lets you act as a COO on the ground, bridging product.

Learning Systems Lead at Valon Technologies, Inc.

The Learning Systems Lead role at Valon Technologies, Inc., a16z-backed fintech unicorn. You will architect the learning infrastructure and build an AI-native 'eternal coach' to cut time-to-mastery from six months to three. Based in the United States, the position offers a chance to scale expert knowledge across the organization through automated systems at a fast-growing fintech.

Founding Builder at super{set}

Founding Builder at super{set}, a San Francisco venture studio. Lead zero-to-one execution for AI-native startups, turning ambitious ideas into production-ready platforms. Ship code and shape early-stage products as part of a lean, impact-focused team in San Francisco.

Founding Product Designer at Chalkie

As Founding Product Designer at Chalkie, you will work with the CPO to shape AI-enabled classroom products. Prototype in Cursor and ship daily to 50,000 paying subscribers.

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.

Design and Content Lead at Rivan Industries

Design and Content Lead at Rivan Industries in London, UK, leads visual storytelling for a high-growth energy startup. As the first dedicated creative hire, you'll shape content and messaging as a designer and filmmaker with 1-2 years of experience. This role offers the opportunity to help end global fossil fuel drilling through world-class content.

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.

Senior Applied MLE at zaimler

Enterprise AI is failing because agents lack business context. As a Senior Applied MLE in San Mateo, you’ll tackle the hardest problems in knowledge extraction and AI Data Graphs, shipping directly to Fortune 500 customers and defining an entirely new infrastructure category. If you have 4+ years of experience in NLP and LLM fine tuning and want to build the context engine that powers the next decade of AI, this is the role for you.

Founder's Associate at LightWork AI

LightWork AI is looking for a Founder's Associate to serve as a high octane force multiplier alongside their founding team. This isn't an admin role; you'll be at the heart of a startup transforming the £350bn property management industry with autonomous AI agents.

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.

Investor, Launch at Entrepreneurs First

Join the world’s leading talent investor and help turn the most ambitious technical founders into the next decade's unicorns. As the Investor for the San Francisco Launch program, you will be the engine taking global founders from 'pre idea' to successful seed rounds with tier 1 US VCs. If you are a master connector with founder or VC experience who wants to be at the center of the Bay Area's startup ecosystem, this high impact role offers the autonomy and access you've been looking for.

Market Manager at 8Fleet

Launch the San Francisco market for a high growth startup building the operational backbone for the future of rideshare. Founded by ex Uber executives, this company is professionalizing fleet management and preparing for the autonomous vehicle transition. As Market Manager, you will own the P&L, lead driver recruitment, and scale operations from the ground up in a critical new territory. If you have an entrepreneurial mindset and a background in high stakes operations or consulting, this is your chance to run a business within a business while earning meaningful equity in a scaling mobility leader.

Product Designer (Staff / Principal Level) at Anima

Join Anima, a YC backed startup on a mission to deliver precision medicine to anyone in under 24 hours. As a Staff or Principal Product Designer, you'll skip the PM layer and take full ownership of product lines that 10x doctor capacity and save lives. We are looking for an obsessive craftsperson who isn't afraid to ship frontend code and wants to build the 'Linear of Healthcare.' With £14.6M ARR and a team of former founders, this is a rare chance to apply elite design standards to the highest possible stakes in London.

Founding Product Manager at iinvest

Join iinvest.ai as a Founding Product Manager to build the first AI native operating system for the $9.6T trading industry. Working alongside the former Chief Architect of eToro, you will define the product vision for a platform that unifies real time communities, broker integrations, and AI agents. We are moving beyond traditional PRDs to create agent consumable specifications for the next era of fintech. If you have 4 8 years of startup PM experience, deep AI fluency, and are excited by a founding level equity stake, this is your chance to solve the acquisition crisis for 3,000+ global brokers.

Founding Product Engineer at Pool

Help build the future of shared money as the third engineer at this high growth SF startup. Backed by Notation Capital and led by a veteran YC founder, this team is replacing clunky spreadsheets and awkward IOUs with a sophisticated co ownership financial platform. If you have deep React expertise, a passion for consumer UX, and want to own 1% of a resilient fintech mission, this is your chance to shape a product processing real world transactions for thousands of users on day one.

Senior M&A Advisor at Dealflowagent

Are you a high performing M&A professional tired of the back room analyst grind? This AI native advisory firm, backed by early investors in SpaceX and Notion, is hiring a Senior M&A Advisor to lead their founding team in London. You'll own the entire deal lifecycle for SMBs using proprietary AI tools that handle the heavy lifting, allowing you to manage more volume and earn uncapped 10 15% commissions. With a £72k base, 1% founding equity, and a model that has seen peers earn seven figure bonuses, this is the ultimate role for a deal maker with a startup operator's mindset.

Founding Marketer at Meshedcover

If you're a social media savvy marketer who loves turning long form podcasts into viral content and wants to own the entire marketing engine of a high growth startup, this is your chance. You'll work directly with the COO to build a category leader, enjoying 0.5% equity and real creative freedom.

Chief of Staff at Catapult

The Chief of Staff role at Catapult in London owns operations, drives technical recruiting, and leads toward an early alpha launch. Catapult is building the next generation of personalized AI with a team of researchers and founders from Meta and Cambridge. The role offers equity and a clear path to Head of Operations, with a potential move to San Francisco.

The role is LLM Researcher (+ Equity) at a confidential, well-funded seed-stage robotics AI startup in San Francisco. The company is backed by AI pioneers and focuses on building the foundation model layer for humanoid autonomy. This role offers the opportunity to contribute to training general-purpose policies from video data and ship code that advances physical AI.

As a Senior Product Designer, you will build the core orchestration flows that enable solo founders to manage AI agents through natural language. This role is with a well-funded confidential AI startup in San Francisco, CA, backed by top-tier venture capital. The 0-to-1 opportunity offers substantial ownership and a chance to define how humans interact with autonomous systems.

Founding Designer / Design Engineer role at a well-funded AI startup in London. The company is building the collaboration layer for the agentic era, offering the chance to own the entire user surface of a product that automates coordination for knowledge workers. This is an opportunity to shape the interface of the future by delivering a seamless front-end experience that bridges AI agents and.

Are you passionate about the frontier of science and technology? Join a rapidly growing VC fund as an Associate and lead investments into the next generation of deep tech unicorns. Based in London, you will partner with brilliant scientific founders across Europe's top laboratories, managing everything from sourcing to board seats. If you have a technical background and 2 4 years of high pressure experience, this is your chance to build a definitive portfolio in AI, robotics, and biotech with a well funded, entrepreneurial team.

Are you a visionary Product Designer ready to define the future of human AI interaction? Join a fast growing AI platform as its Founding Product Designer, taking complete ownership of the user experience for a product already loved by thousands. This is a unique opportunity to shape an entirely new interface for agentic AI, disrupting a massive market and helping millions find their optimal career path. If you're a first principles thinker with a passion for impact, this role offers unparalleled influence and growth.

Are you a visionary designer looking to define the aesthetic of the modern travel experience? We are seeking a Founding Designer to lead UI/UX for a well funded, design forward startup in San Francisco. This is your chance to own the entire product identity, build a world class design system from scratch, and work alongside a top tier team to transform how people discover and book travel. If you excel at turning complex features into beautiful, intuitive interfaces, this foundational role offers unparalleled influence and growth potential.