Senior Frontend Developer

Company: Lorien
Apply for the Senior Frontend Developer
Location: Leeds
Job Description:

Our client is seeking a Senior Frontend Engineer to join their Product Development team. In this hands‑on role, you’ll build high-performance, customer-facing applications for kiosk systems. You’ll help shape frontend architecture, mentor junior engineers, and drive best practices across the team, focusing on technical excellence, collaboration, and continuous improvement.


Key Responsibilities



  • Develop and maintain React/TypeScript applications using modern frameworks

  • Architect scalable, maintainable frontend systems with performance and accessibility in mind

  • Drive improvements in code quality, testing, and tooling

  • Champion responsive design and performance optimisation

  • Collaborate with DevOps on CI/CD enhancements

  • Mentor junior developers and foster a culture of learning

  • Contribute to component-driven architecture and design system evolution

  • Participate in production support and incident response


What You’ll Bring



  • Expert‑level knowledge of React, and modern JS

  • Experience with state management (Redux, Zustand, Context API)

  • Deep understanding of performance optimization and accessibility

  • Experience with AWS, Docker, and advanced testing strategies

  • Proven ability to mentor and influence technical decisions

  • Agile delivery and continuous improvement mindset

  • Experience with Node.js or Python

  • Familiarity with Kubernetes or advanced AWS services

  • Exposure to kiosk or POS hardware interfaces

  • Accessibility (WCAG) compliance expertise


Personal Qualities



  • Strategic thinker with a bias for action

  • Passionate about teaching and learning

  • Collaborative and solution‑focused

  • Ownership mindset and commitment to delivering customer value

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Posted: April 4th, 2026