Salary: £50,000 - 70,000 per year Requirements: Expert-level React skills, including component architecture, hooks, state management, and performance tuning. Strong UI engineering experience focused on usability, interaction design, and polished user experience. Deep technical capability in data visualisation libraries (D3.js highly valued). Proven success building responsive, scalable, and robust front-end solutions in complex environments. Experience working across multiple products or platforms simultaneously. Ability to transform complex datasets into intuitive, meaningful visual insights. Confidence to provide technical leadership and contribute to wider front-end strategy. Responsibilities: Take ownership of UI and frontend implementation across several product lines, focusing on React and modern component architecture. Build interactive, high-performance data visualisation experiences using libraries such as D3.js, ECharts, or similar. Develop and evolve the UI for a developer homepage with 50,000 active users, ensuring it is intuitive, responsive, and visually compelling. Set technical standards for UI engineering, including component structure, state management, performance optimisation, accessibility, and design systems. Collaborate closely with UX designers, product managers, data engineers, and platform teams. Mentor and guide other engineers while remaining hands-on with coding, reviews, and architectural decisions. Technologies: D3 Frontend React UX UI Design JavaScript More: We are a global technology organization offering a competitive salary and excellent benefits. In this standout opportunity, youll play a crucial role in designing and building visual experiences used by 50,000 global developers each day. Our supportive and innovative environment encourages autonomy and experimentation, with clear growth and progression opportunities within our global engineering organization. This hybrid position is based in the UK. last updated 17 week of 2026