251 to 275 of 347 OpenAI Jobs in the UK

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Belfast, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Southampton, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Cardiff, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Bradford, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Leicester, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Aberdeen, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Leeds, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Birmingham, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Sheffield, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Bristol, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Nottingham, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Liverpool, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Edinburgh, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer – Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
United Kingdom
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Luton, Bedfordshire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Woking, Surrey, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Bournemouth, Dorset, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Basildon, Essex, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Gloucester, Gloucestershire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
South London, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Cheltenham, Gloucestershire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Stevenage, Hertfordshire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Lincoln, Lincolnshire, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...

Founding Engineer - Mobile & AI (Stealth Start-up | Launching 2026)

Hiring Organisation
ECW Search
Location
Norwich, Norfolk, UK
Employment Type
Full-time
Daily habit-building loops Smooth animations and micro-interactions Build and maintain a scalable backend (Node/Python). Integrate with leading LLM APIs (OpenAI/Anthropic/etc.). The early architecture, tech stack, and development culture. Ship fast, iterate fast, and help create something users genuinely love. What ...