Founding Full Stack AI Engineer

JR United Kingdom; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

Join a top AI-native startup as a Founding Full Stack Software Engineer in London. This role fosters a unique opportunity to collaborate with a team of PhDs from leading institutions, developing innovative AI-driven solutions. You’ll contribute to high-impact projects, leveraging your technical expertise in Python, Typescript, and database management, while enjoying the benefits of equity and ownership in a growing enterprise.

Benefits

Relocation support (£10K provided)

Equity and early ownership opportunities

Qualifications

• Experience in AI-focused products, ideally in a high-growth environment.
• Strong Python engineering skills; full-stack capability is a bonus.
• A bias toward action, autonomy, and technical depth.

Responsibilities

• Developing large language model powered tools and systems.
• Building backend infrastructure for efficient inference pipelines.
• Working collaboratively with a high-level team on complex problems.

Skills

Python

PostgreSQL

Typescript

React

Education

Degree from a leading university (e.g. Cambridge, Oxford, Imperial)

Tools

UI/UX design tools (e.g., Figma)

HTML document editor APIs (e.g., TinyMCE, CKEditor 5)

Job description

Social network you want to login/join with:

Founding Full Stack AI Engineer, london (city of london)

col-narrow-left

Client:

Better Placed Ltd - A Sunday Times Top 10 Employer!

Location:

london (city of london), United Kingdom

Job Category:

Other

-

EU work permit required:

Yes

col-narrow-right

Job Views:

2

Posted:

16.06.2025

Expiry Date:

31.07.2025

col-wide

Job Description:

Founding Full Stack Software Engineer (AI)

On-site in London (£10K relocation provided)

Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions. This is an opportunity to work directly with a team who’ve published at leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles.

Now, they’re hiring a Founding Full Stack Software Engineer to help build the next generation of reasoning tools powered by large language models. You can be more front end or back end leaning provided you've worked in a similar high growth start-up, ideally in AI.

The product is already live with paying customers, and the company is well-funded with serious growth ambitions.

What you'll work on:

• Technical Expertise & Development (Python and Typescript)
• Python expert with experience in PostgreSQL databases.
• Experience with LLM-powered application architecture and developing efficient inference pipelines and backend infrastructure.

Nice to Have (if front end leaning)

• Familiarity with UI/UX design tools (e.g., Figma) and WYSIWYG HTML document editor APIs (e.g., TinyMCE, CKEditor 5).

What they’re looking for:

• A degree from a leading university (e.g. Cambridge, Oxford, Imperial, Edinburgh, EPFL, ETH Zurich, ENS, TUM, etc.)
• Experience in AI-focused products, ideally within a high-growth or research-heavy environment
• Strong Python engineering skills; full-stack capability a bonus (Postgres, Typescript, React)
• A bias toward action, autonomy, and technical depth

This isn’t a typical start-up job. It’s a chance to work alongside an elite team of engineers and scientists on hard technical problems — with equity and early ownership in a company building something truly original in the AI space.

If you’re ready to build fast, learn constantly, and work on meaningful AI challenges, we’d love to hear from you.