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Xelix Logo Xelix · IT - Software Development

Frontend Developer - React

United Kingdom, London Employment contract 60000.00 - 75000.00 GBP / Year · Job Posted May 17, 2026
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Job Description

We’re looking for a React Developer to join our growing development team. In this role, you will implement user interface components using React concepts and workflows such as Redux and RTK Query. You will also ensure that these components and the overall application are robust and easy to maintain. Our developers take pride in their work – producing clean, tested, beautiful code. Rather than give you a detailed set of requirements, we encourage engineers to take responsibility for solving the problem. There are many opportunities to innovate as you collaborate with stakeholders to design and implement new features. You will be well supported to continue your professional development. This includes an annual conference allowance, access to the O’Reilly library and a monthly session with your manager to identify and track your development goals.

Job Responsibility

  • Collaborating with designers and other developers to build websites from specifications produced in Figma
  • Creating visually appealing experiences using CSS3 for frontend applications
  • Implementing robust and scalable solutions
  • Developing, using and designing REST APIs and web-socket solutions to efficiently deliver application components
  • Performing testing and quality assurance activities on different browsers and devices to ensure compatibility and responsiveness
  • Implementing performance improvement strategies, testing, and measuring application performance
  • Mentoring other team members, sharing knowledge and experience
  • Ensuring the quality of code by writing comprehensive tests and participating in code reviews

Requirements

  • Expert knowledge of modern syntax JavaScript and React
  • Proficiency in JavaScript, TypeScript and CSS3
  • Familiarity with modern application architecture and design patterns
  • Excellent understanding of the complete software development life cycle
  • Strong Computer Science fundamentals and problem-solving skills
  • Ability to effectively communicate complex technical concepts to team members and stakeholders
  • Passionate about testing, rapid iteration and collaborative problem solving
  • Knowledge in Test tools like Playwright, Jest

Nice to have

  • An interest and aptitude in data visualization, transforming complex datasets into intuitive visual representations
  • Skills in User Experience (UX) and User Interface (UI) design, demonstrating a keen eye for aesthetics and attention to user journeys

What we offer

  • Competitive salary of £60,000 - £75,000 depending on experience
  • 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days
  • Hybrid working with one day a week from our dog-friendly Hoxton office and on-site gym
  • Comprehensive private medical & dental cover with Vitality
  • Enhanced parental leave pay
  • Learning & development culture – £1,000 personal annual budget
  • Carbon-neutral and ambitious carbon reduction goals
  • Lots of team socials & activities
  • Annual team retreat
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