Founding Engineer - London

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 ...

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. · ...

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 ...

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 ...

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 ...

We are working with an exciting AI start up tackling one of the most crucial challenges for SaaS businesses. · Why join: · High impact & ownership over core product. · Work closely with a high calibre founding team. · ...

Founding Engineer · I am supporting a well funded early stage AI startup building real time coaching technology embedded directly into live sales calls. Their platform delivers instant, contextual guidance during conversations, surfacing the right prompts and discovery questions ...

Would you like the opportunity to work for a fast-moving AI start-up who are building and scaling software products with creators. · Owning fullstack development across multiple products — designing APIs and data models, building and shipping services, and maintaining quality in ...

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. · ...

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 ...

This is not a typical engineering role. As a Founding Engineer, · you'll help define both the technology and the company.As part of · the founding team you'll help define the problem space influence product direction and ensure technical decisions drive company outcomes. · ...

Job summary · Join as employee #4 with genuine founding engineer ownership working on cutting-edge AI: agent reasoning, real-time voice processing, memory systems. · Qualifications5+ years of software engineering experience · Strong backend fundamentals – Python preferred but not ...

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 ...

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

We're smashing through funding rounds and building the most cutting-edge AI solutions to real-world problems, · We need entrepreneurial engineers to innovate, iterate and ship – fast. · A passion for building, iterating and crafting software people love. · ...

Join the founders of an early-stage energy tech startup as the first full-time engineering hire tackling real problems in a fast-growing industry while having a meaningful positive impact on the environment. · ...

We are early-stage product-led company building next generation beer taps. This is founding-level role with real ownership working on hardware firmware manufacturing and field installs. · Design build and iterate on electromechanical systems valves motors sensors · ...

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. · She will pick the best candidates from Jack's network. · The next step is to speak to Jack. · Ship production-ready features rapidly across the full stack to support global aerospace ...

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 ...