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UI Engineer

Aker SystemsBicester, United Kingdom
ReactTypescriptRESTAPIsCI/CD
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About The Role

We’re looking for a Frontend UI Engineer with a strong foundation in modern web technologies to join our team. You’ll contribute to the development of performant, user-centric interfaces using React, Preact, and TypeScript, while helping to evolve our frontend architecture. You’ll collaborate closely with designers, backend engineers, and product managers to deliver clean, accessible, and delightful user experiences across our web applications.

Core Responsibilities

  • Design, build, and maintain complex UI components using React, Preact, and TypeScript
  • Apply best practices in frontend architecture, performance, and accessibility
  • Turn mockups and prototypes into high-quality, scalable frontend code
  • Participate in code reviews and contribute to shared frontend standards
  • Work alongside backend engineers to define and consume REST APIs
  • Optimize applications for performance, scalability, and cross-browser/device compatibility
  • Support the development and refinement of our CI/CD pipelines and frontend tooling
  • Collaborate on shared UI infrastructure, such as component libraries or design systems

What We’re Looking For
Technical Skills
  • Minimum 5 years of experience building production-grade frontend applications
  • Strong knowledge of React and/or Preact, along with TypeScript
  • Experience with Single Page Applications (SPAs) and component-driven development
  • Familiarity with performance profiling, code splitting, and lazy loading
  • Working knowledge of cross-browser quirks, responsive design, and accessibility
  • Comfortable working with REST APIs and tools like Swagger/OpenAPI

Personal Qualities
  • Passion for clean code, good UI/UX, and intuitive interactions
  • Strong collaboration skills with designers, engineers, and product teams
  • Ability to work effectively in fast-paced, agile environments
  • Enthusiasm for maintainable, scalable frontend systems

Nice To Have
  • Experience using Preact in constrained or embedded environments
  • Familiarity with server-side rendering (Next.js, Astro, or similar)
  • Contributions to open-source projects or UI frameworks
  • Previous experience in SaaS or product-led tech companies