Principal Front End Developer React – Consultancy

Company: Client Server
Apply for the Principal Front End Developer React – Consultancy
Location: London
Job Description:

Principal React Developer / Front End Engineer London / WFH to £120k

Do you have expertise with React combined with technical project leadership and client facing skills?

You could be progressing your career at a global finance technology consultancy.

What’s in it for you:

  • Salary to £120k
  • Pension, Life Assurance, Income Protection
  • Private medical care for you and your family, including mental health
  • Travel Insurance
  • Charitable giving
  • Gym membership for you and your family

Your role:

As a senior technical leader, you’ll mentor others, influence front end strategy and drive best practices. You’ll join a collaborative team with a focus on engineering best practice and continuous improvement of client systems; you will have lots of business and client exposure, leading projects and providing expertise.

Location / WFH:

There’s a hybrid work from home policy with three days a week in the London, City office (or at client sites), you’ll join a friendly, diverse, upbeat team.

About you

  • You have experience within a financial services, Fintech or consultancy environment
  • You have experience with modern CSS techniques (Flexbox, Grid) and frameworks like SASS, Material UI and Bootstrap
  • You have experience with Redux, Webpack and modern testing frameworks like Jest, Mocha or Enzyme
  • You have a thorough understanding of the software development lifecycle, and are familiar with DevOps, CI/CD pipelines and Containerisation (Docker / Kubernetes)
  • You’re collaborative, enjoy problem solving and interacting with clients

Apply now to find out more about this Principal React Developer / Front End Engineer (React) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

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Posted: May 10th, 2026