Senior UI React Developer

I\’m representing a fast-growing Financial Services Company (International with a HUGE HQ in London) who are on the hunt for a Senior UI Engineer to take full ownership of their front-end & UI across a variety of projects. This is a high-impact role with huge autonomy —you’ll be the go-to expert for all things UI, working at the heart of a team that’s scaling fast and building for the future. If you\’re passionate about clean code, slick interfaces, and driving innovation, this one’s for you. Why this role stands out: Own the UI – You’ll shape internal libraries/ tools/ design systems, build reusable components, and set the standard for frontend excellence. Massive autonomy – You’ll have the freedom to make big decisions and lead the way technically. Join a growing company – Be part of a team that’s expanding rapidly, with real opportunities to influence process, tooling, and culture. Drive innovation – Your ideas will drive change and innovation across the business for years to come. What you’ll be doing: Building high-performance, accessible UI components with React , TypeScript , and Next.js Evolving a robust design system used across multiple teams Championing best practices in testing, performance, and developer experience Collaborating closely with product and design to deliver seamless user experiences They need: ~6+ years of frontend experience with deep expertise in React and TypeScript ~ Strong knowledge of JS component libraries, and modern frontend tooling – Next.js is a plus! ~ Passion for clean, scalable code and a strong testing culture ~ Experience working with design systems and performance optimization ~ Bonus: Exposure to Node.js, monorepos, or open-source contributions ~ BSc in Computer Science or related field is a big plus