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# Full Stack Engineer

- **Company:** Client Server
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £100,000.0 - £120,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software Engineering, TypeScript, ReactJS, Backend
- **Published:** September 9, 2026
- **Apply:** https://www.client-server.com//job/senior-full-stack-engineer-start-up-2/apply

## About the Role

* You have strong full stack software engineering skills: including TypeScript, React, backend services and APIs - ideally you'll also have some knowledge of Rust
 * You have experience shipping consumer facing products, ideally direct-to-consumer subscription experience
 * You're comfortable owning features end to end, from design through release and data reporting, in a small team environment
 * You've used AI tooling to accelerate development and can make recommendations to the team on effective ways to use AI in development

 * You're collaborative with strong problem solving skills
 * You have experience of working in start-ups / scaling companies
 * Experience building real-time systems, in-play chat, live sports data or betting related technology would be particularly relevant

## Description

Opportunity for a Senior / Founding Full Stack Engineer to join a fast growing sports technology business as it establishes its new UK operation.

The company sits at the intersection of sports, data, digital insights and betting, working across major US sports including the NFL, NBA, baseball and hockey, with further expansion into college football underway.

As one of the first engineers in the UK, you'll have genuine founding engineer ownership - shaping architecture, making technology decisions and building products from the ground up. This is a hands-on role for someone who thrives in a start-up environment and is comfortable owning the full software development lifecycle, from design and development through to testing, deployment and production.


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