Senior Frontend Engineer - React & React Native Lead
Summary
A 6-month contract role (hybrid, 1 office day per week in London Farringdon) for a senior frontend lead owning critical React and React Native systems — building scalable production-ready code, improving Core Web Vitals, mentoring engineers, and driving frontend technical strategy.
Rullion is seeking a Senior Frontend Developer (React Native) to lead complex frontend initiatives in a fast-paced engineering environment in London. You will own critical frontend systems, mentor engineers, and drive technical strategy while balancing performance and maintainability.
The role offers a 6-month contract with hybrid work (1 office day) based in London, Farringdon. You will work on scalable, production-ready code, improve CWV, and contribute to best practices across the team.