Salary: £30,000 - 60,000 per year Requirements: Expert-level React skills, including component architecture, hooks, state management, and performance tuning. Strong UI engineering experience with a focus on usability, interaction design, and polished user experience. Deep technical capability in data visualisation libraries (D3.js highly valued). Proven success in 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 with a strong focus 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 over 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 seeking a Lead UI / React Data Visualisation Engineer to join our innovative team. This role offers you the chance to make a significant impact by shaping a UI used by over 50,000 developers worldwide. You will lead architectural decisions across multiple products while enjoying a supportive environment that fosters autonomy and creativity. Our hybrid working model provides flexibility, along with excellent benefits and clear opportunities for growth and progression in our global engineering organisation. last updated 17 week of 2026