React Developer (React.js/JavaScript)

Company: Global Relay
Apply for the React Developer (React.js/JavaScript)
Location: Greater London
Job Description:

Your Role

The Intermediate React Developer is a member of a small, highly focused team, responsible for building modern, sophisticated applications using leading edge technologies. This is an opportunity to work alongside some of the best developers in London and apply your craft in an environment that encourages creative thinking and autonomy. You’ll be encouraged to think beyond a single component to build complete system solutions. Challenge yourself by learning new technologies and applying your skills across our different projects and application domains. If you are committed to code that is clean, well‑tested, well‑reviewed, performant and secure, then you’ll fit in around here.

Your Job

  • Work as part of an agile development team to design and implement a fully‑interactive, single‑page style web application
  • Write unit and integration tests for your code
  • Collaborate with interaction designers to translate mock‑ups into a functioning web application that is accessible, responsive and exceptionally usable
  • Collaborate with product owners on user story generation and refinement
  • Participate in knowledge sharing activities with colleagues

About You

  • Experience writing functional tests using web testing frameworks
  • Experience with any of the following is an asset:
  • Selenium
  • Unit testing with Mocha or Jasmine/Jest

What you can expect

At Global Relay, there’s no ceiling to what you can achieve. You’ll receive the mentoring, coaching and support you need to reach your career goals. You’ll be part of a culture that breeds creativity and rewards perseverance and hard work.

Equal Opportunity Employer

Global Relay is an equal‑opportunity employer committed to diversity, equity and inclusion.

We seek to ensure reasonable adjustments, accommodations and personal time are tailored to meet the unique needs of every individual.

We understand flexible work arrangements are important, and we encourage that in our work culture. Whether it’s flexibility around work hours, workstyle or lifestyle, we want to ensure our employees have a healthy work/life balance. We support and value a hybrid work model that blends collaboration with the team in the office and focus time from the comfort of your home.

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Posted: April 21st, 2026