Senior Frontend Developer

We’re looking for an experienced Frontend Engineer (React/Nextjs) to lead the design, delivery and continuous improvement of customer-facing applications and services.

You’ll work with a high degree of autonomy, influence technical direction, mentor engineers, and help build a culture focused on customer value, engineering excellence and continuous learning.

• Lead customer-focused delivery, prioritising incremental value and a test-and-learn approach.
• Mentor and coach engineers, raising technical quality and engineering standards.
• Design and evolve scalable React / Next.js applications and shared component libraries.
• Define frontend architecture, technical direction and development standards across teams.
• Drive improvements in performance, scalability, accessibility, security and reliability.
• Monitor and optimise frontend performance, bundle sizes, rendering and client-side health.
• Improve state management and component architecture across large-scale applications.
• Champion modern engineering practices, including AI-assisted development and agentic workflows, with appropriate code review and quality controls.
• Work closely with product, design, research and engineering teams to translate user needs into effective technical solutions.
• Support production services, diagnose complex issues and improve system resilience and stability.
• Contribute to SDLC, testing, quality standards and across engineering teams.

• Strong commercial experience building and operating React / Next.js applications.
• Excellent understanding of frontend architecture, component design and modern development practices.
• Proven experience improving web performance and frontend scalability.
• Strong systems-thinking and problem-solving skills.
• Experience mentoring engineers and influencing technical decisions across teams.
• A customer-focused mindset with a commitment to accessibility and user-centred design.
• Experience working with cloud platforms such as GCP, including consideration of cost and performance.
• Understanding of SRE principles, monitoring and production support.
• Excellent communication skills and the ability to bridge technical and non-technical perspectives.
• A proactive approach to learning, experimentation and continuous improvement.