Senior TS/React Full-Stack Engineer — London, Onsite + Bonus

Client Server; Greater London; On-site; GBP 72,000 - 120,000; Full time

Benefits offered by this job

Bonus

Job summary

Client Server is hiring a Senior Full Stack Engineer for London onsite to £120k. You will join early in the UK operation, owning architecture, design decisions, and building products from ground up in a hands-on start-up environment.

This role requires strong TypeScript/React skills, backend services, and APIs, with optional Rust knowledge. You’ll ship consumer products, own features end-to-end, and contribute to data reporting in a small team.

Qualifications

• Strong full-stack skills: TypeScript, React, backend services and APIs, with Rust knowledge preferred.
• Experience shipping consumer-facing products, ideally direct-to-consumer subscriptions.
• Own features end-to-end from design through release and data reporting in a small team.
• Experience with AI tooling to accelerate development and recommend AI use.
• Collaborative with strong problem-solving skills; startup/scaleup background.
• Experience building real-time systems, in-play chat, live sports data or betting tech is a plus.

Responsibilities

• Own full software development lifecycle from design to production.
• Architect, design, and implement features for the UK operation.
• Collaborate with a small team and take ownership of end-to-end delivery.
• Ship consumer products and report data insights.

Skills

TypeScript

React

APIs

Rust

Subscription experience

AI tooling

Startup experience

Real-time data

Job description

Client Server is hiring a Senior Full Stack Engineer for London onsite to £120k. You will join early in the UK operation, owning architecture, design decisions, and building products from ground up in a hands-on start-up environment.

This role requires strong TypeScript/React skills, backend services, and APIs, with optional Rust knowledge. You’ll ship consumer products, own features end-to-end, and contribute to data reporting in a small team.