founding engineer jobs in London

Job description Founding Engineer – Competitive Salary and above market equity - 5-days on-site in London I'm partnering with a seed-funded, early-stage AI start-up that's building intelligent software to solve complex operational challenges within critical infrastructure & aerospace. As part of their ambitious and on-going growth, they are looking to...

About Revion Revion builds AI agents for the Automotive Sector. Our agents answer customer calls and messages, book appointments and work inside the dealer's management system. Dealer groups across the US and Europe use them today. The role You'll be one of Revion's first engineers in Europe, working with our customers and building the agents and product...

American healthcare providers spend hundreds of billions a year creating and optimizing health insurance claims. Payers spend a similar amount adjudicating them.AI was supposed to fix this, but really it's making things worse. Providers use AI to improve claims; payers deploy AI to deny them. Both sides spend more; neither gains. So we're collapsing the...

Founding Engineer – Early-Stage Deep Tech Startup Full-time | Onsite in London An early-stage, stealth-mode startup is looking for a Founding Engineer to join the team in central London. This is a unique opportunity to help build a transformative new platform at the intersection of software systems, automation, and intelligent infrastructure. Founded by...

Our product helps security teams quickly and accurately detect intrusions in their cloud environment using canaries - decoy tripwires deployed to deceive attackers. We're at a massive inflection point and this is a hugely exciting time to join the company: We've just raised a $20m Series A led by FirstMark with Accel, MMC, Tapestry and CCL. We doubled ARR...

Founding Engineer| Relationship Intelligence Platform | London Up to £140k · 4 days onsite, Central London We're working with an early-stage startup building a relationship intelligence platform for institutional sales. It helpings asset managers understand who matters, how people and organisations connect, and where to act next, using enterprise data,...

About the OpportunityWe are partnering with a tech company founded by industry veterans with deep expertise in enterprise architecture and quantitative systems. The company is establishing its founding engineering team to design, build, and scale their core platform from the ground up, delivering high-performance solutions for complex data processing and...

Do you have experience working at an early-stage startup and want to do it again, properly this time? Are you excited by real ownership, commercial impact, and building something genuinely category-defining? Experience: 3-8 years (startup / founding engineer background preferred) We’re partnered with a pre-seed AI startup building agentic AI systems that...

First Engineer, AI-First Creator Platform (London) A bootstrapped, profitable creator platform is hiring its first engineer. The company helps creators launch branded membership products, content hosting, payments, growth tools, and AI features tailored to their vertical. Revenue has tripled in recent months, all without external funding. The team is two...

Senior Recruitment Consultant @ SR2 B Corp™ | LLB | Headhunting Python Engineers🐍 | Helping Tech4Good Businesses Build Impactful Products | Advocate… Location: London (hybrid) Salary: Up to £100,000 (+/- 10% DOE) + equity Python ecosystem - experience with Django, or Flask, or FastAPI TypeScript & React across the frontend - any frontend experience...

Founding Engineer (London Startups | £100k–£200k + meaningful equity)London (on-site / hybrid)Location: London (on-site / hybrid)Picking the right founding role is mostly about picking the right founders, and that's hard to judge from a job ad. We know the early-stage founders we work with personally — what they're building, how they're funded, what...

The Founding Engineer is in the ultimate cross-sectional position, and will be involved in solving tough algorithmic problems, managing the entire tech stack, and building products end-to-end.This will include building highly performant desktop applications, both frontend and backend, and (most critically) developing and designing the very complex systems we...

Fundflow is building the first AI-native investment bank for the innovation economy. Founded by Goldman alumni, we combine vast deal experience with AI-first execution to deliver best-in-class capital market services to the tech ecosystem. Where digital banks redefined retail banking for good, investment banking has barely evolved. Wall Street still runs on...

I have a unique Founding Engineer opportunity with a London-based charitable platform managing c.£400M in assets across 40+ investment firms.The organisation operates Donor Advised Funds and Collective Funds, and is now at a major inflection point. They are seeking a senior technologist to own and deliver their end-to-end technology strategy, reporting...

You would be among the first engineers here, which means you get to own a surface end to end, from the ontology underneath it all the way to what a customer sees.What you would work onThe ontology is the layer underneath everything we ship. Calls, email, documents and CRM fields resolve onto one typed record per deal today, and that list will grow. This...

Location: Central London (on site)Experience: 2+ years## About FundflowFundflow is building the first AI-native investment bank for the innovation economy. Founded by Goldman alumni, we combine vast deal experience with AI-first execution to deliver best-in-class capital market services to the tech ecosystem.Where digital banks redefined retail banking for...

Compensation: Competitive salary + significant stock options The Opportunity Ralio is the payments layer for AI Agents. If you can imagine the challenges that this brings, please keep reading. We’re backed by very strong early investors and are now hiring Founding Engineers to help shape the product, architecture, and engineering culture from the ground...

Founding Engineer | AI Seed stage StartupCentral London (Hybrid) - 3 days in officeFOUNDING ENGINEERS this one’s for you!In true Nameless Ventures style you most definitely have not heard of this company.. yet.We’re currently working with an AI stealth mode startup building a product solving a really irritating problem (guarantee most of you will have...

About Delfa Billions of people still suffer from every-day diseases. One key reason? Clinical trials are broken. Despite $120 billion spent each year, most trials are delayed due to bottlenecks like patient recruitment. Delfa is fixing this with autonomous AI agents. We're building AI agents to automate clinical trials. In the last year from we've...

We're hiring for a Founding Engineer at Nakato, a pre-seed AI privacy startup in the UK. Nakato builds a Reversible Semantic Pseudonymisation (RSP) layer that sits between enterprise data and external AI models, transforming PII into contextually equivalent fiction before inference and reversing it on return. Already piloting with tier-1 UK banks and a FTSE...