Founding Engineer - London

Founding Engineer · Central London · Up to £235k + Founding Equity · We're looking for engineers who don't wait for tickets to tell them what to do The kind who enjoy jumping into messy problems, talking to real users, sniffing out bottlenecks early, and sketching solutions that ...

We re working with an early-stage InsurTech startup redefining how insurance products are built priced and operated. This is a true founding engineer role not maintenance not tickets not inherit a legacy codebase and survive You ll be building core systems from day one and shapin ...

We are super excited to have partnered with a pre-seed funded startup who are building Agentic AI systems to transform the productivity of workers and businesses worldwide. · Backend (Python) · Frontend (Typescript, React) · ...

This isn't another early-stage role with duct-taped systems and vague vision. · This team just raised $20M and is assembling a founding engineering group with one rule: · only exceptional people. · ...

A newly formed company that graduated Y-Combinator is looking to hire a Founding Engineer for their London team. Having secured £10m in funding from top investors, they're excited to press on and this hire is critical to how they do that. · ...

Founding Engineer (AI & Agentic Systems) · £150,000–£170, –1.2% equity · London (primarily in-person, flexible remote days) · A venture-backed AI start-up is hiring a Founding Engineer to build and ship AI-powered product features end to end. · They're developing an AI-driven lif ...

Founding Engineer (AI & Agentic Systems) · £150,000–£170, –1.2% equity · Central London (primarily in-person, flexible remote days) · A venture-backed AI start-up is hiring a Founding Engineer to build and ship AI-powered product features end to end. · They're developing an AI-dr ...

We're partnered with a pre-seed AI startup building agentic AI systems that radically improve how knowledge workers think, decide, and get work done. · ...

We're hiring for a seed-stage SaaS startup backed by Balderton that's using AI to fundamentally redefine its product. · ...

Founding Engineer (Python/Django/AI) · £150k - £160k + Significant Equity (up to 1.3%) · Central London – High-Performance In-Person Culture · Python, Django, GCP, LLMs, RAG, Agent Orchestration · SwitchTT are partnered with a Tier-1 backed, digital first platform redefining P ...

This is a true 0-to-1 role for a founding engineer to build AI agents that connect people - real products with real users in London, · ResponsibilitiesBuilding the core product end-to-end across frontend, backend, and AI systems · Shipping fast, owning production, and iterating d ...

+Job summary · We are seeking a Founding Engineer (CTO-track) to take end-to-end ownership of building and launching our platform.This is a hands-on, full-stack role initially: you will own the architecture, build core product capabilities, and deploy and operate the platform in ...

A founding engineer position in an early-stage defence technology start-up building mission-critical systems in London. · Design, build, and deploy core technology from day one. · ...

Founding Engineer - Competitive Salary + Meaningful Equity: · We're partnering with an early-stage, Series A-backed technology company building a category-defining product in a large and rapidly evolving market. · They've secured strong institutional backing, have real traction, ...

Join a founding team with a proven record of building successful start-ups at an early-stage cybersecurity start-up redefining how organisations protect data and infrastructure. · ...

Founding Engineer · Salary - £80k - £110k · Location – London Hybrid 2 days a week in office · Tech Stack - Node, Python, React, and TypeScript, AWS, LLM's · Neulinx have partnered with an early stage, VC backed AI start up in the food industry to hire a Founding Engineer. · The ...

Founding Engineer – London (Early-Stage Startup) · An ambitious early-stage Series A startup in London is looking for a Founding Engineer to help build and scale the core product from the ground up. This is a rare opportunity to join at day one, shape the technical direction, and ...

A newly formed company that graduated Y-Combinator is looking to hire a Founding Engineer for their London team. · ...

We are looking for a Founding Engineer to join the company at an early stage and help shape the technical and product foundations of Cortex Research. · Cortex Research is a UK-based frontier AI research company building next-generation, UK-native AI systems for both B2B and B2C a ...

+Job summary · We're hiring a Founding / Senior Software Engineer to join a well-funded, early-stage AI product team based in London.This is a hands-on, high-ownership role for someone who enjoys building real products from the ground up and wants meaningful influence over techni ...

We are looking for a Founding Engineer to work with our early stage startup building browser-based agent technology to securely and reliably automate complex web tasks for modern organisations.This is a genuine founding engineer opportunity where you will have meaningful ownershi ...