Principal Front-End React Developer Location: London (Moorgate, hybrid - 3 days in office) Salary: Competitive, with a generous bonus and pension About the Role We’re looking for a Principal Front-End React Developer to lead the design and development of high-quality, responsive applications. This senior, hands-on role offers the opportunity to influence architecture, collaborate with business stakeholders, and mentor junior engineers. Responsibilities Lead front-end development using React and TypeScript Collaborate with business stakeholders to deliver impactful solutions Mentor and coach junior engineers, promoting best practices Oversee full SDLC for key projects Ensure high standards in code quality, testing, and performance Requirements Extensive hands-on experience with React and TypeScript Strong JavaScript fundamentals (closures, scopes, function binding) Experience with REST, WebSocket, or GraphQL APIs Proven ability to deliver production-ready, business-facing software Experience mentoring and leading engineers Desirable Cloud experience (AWS preferred) UX/design experience for prototyping and communicating ideas Experience in regulated or financial environments What’s on Offer Competitive salary with strong bonus and pension Hybrid working (3 days in the Moorgate office) Collaborative, innovative, and supportive engineering culture Opportunity to shape architecture and front-end strategy Please note that we are unable to provide sponsorship for work visas for this role.