London Founding Senior Full-Stack Engineer (TS/React, Rust)

Client Server; Greater London; On-site; GBP 108,000 - 132,000; Full time

Benefits offered by this job

Bonus

Job summary

Client Server in London is seeking a Senior Full Stack Engineer to own features end-to-end using TypeScript, React, APIs, and potentially Rust. This is a hands-on, founding-engineer level role in a fast-growing startup environment.

As one of the UK’s first engineers, you’ll shape architecture, drive technology decisions and help build products from ground up, with a clear path to impactful growth and a salary up to £120k plus a bonus.

Qualifications

• Strong full stack software engineering skills with TypeScript, React and APIs.
• Experience shipping consumer facing products, ideally subscription models.
• Comfortable owning features end to end in a small team and contributing to architecture.

Responsibilities

• Own features end to end from design through release and data reporting.
• Shape architecture and make technology decisions as a founding engineer.
• Collaborate across product, data and engineering in a startup environment.

Skills

TypeScript

React

Rust

APIs

Full stack

Tools

Backend services

APIs

Job description

Client Server in London is seeking a Senior Full Stack Engineer to own features end-to-end using TypeScript, React, APIs, and potentially Rust. This is a hands-on, founding-engineer level role in a fast-growing startup environment.

As one of the UK’s first engineers, you’ll shape architecture, drive technology decisions and help build products from ground up, with a clear path to impactful growth and a salary up to £120k plus a bonus.