Onlano
ReactOnsite

Senior React Front-End Developer

Client Server - Recruiter

The City, Central London, ๐Ÿ‡ฌ๐Ÿ‡ง United KingdomFull-time - Senior (4-7 years)0 applicantsCloses Jun 13, 2026

Salary

GBP 85,000 - 85,000 / year

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Job description

Role overview

Client Server is seeking a Senior React Front-End Developer to build scalable web applications in a startup environment. The ideal candidate will collaborate with cross-functional teams to design and implement high-performance user interfaces using modern JavaScript frameworks.

Responsibilities

  • Develop and maintain React-based front-end components for web applications
  • Collaborate with product and engineering teams to implement new features
  • Optimize application performance and accessibility
  • Mentor junior developers and contribute to technical decision-making

Requirements

  • 4+ years of professional React development experience
  • Strong JavaScript fundamentals and object-oriented programming skills
  • Experience working in agile startup environments
  • Degree in STEM discipline
  • Excellent communication and technical leadership skills

Benefits

  • Competitive salary up to ยฃ85,000/year
  • Collaborative engineering culture
  • Opportunities to work on greenfield projects
  • Flexible working hours
  • Professional development budget

Responsibilities

  • Develop and maintain React-based front-end components
  • Collaborate with product and engineering teams
  • Optimize application performance and accessibility

Requirements

  • 4+ years React development experience
  • Strong JavaScript fundamentals
  • Startup environment experience

Benefits

  • Competitive salary up to ยฃ85,000/year
  • Collaborative engineering culture

Keywords

ReactJavaScriptFront-End DevelopmentAgile MethodologiesUI/UX DesignWeb ApplicationsObject-Oriented Programming