Onlano
ReactOnsite

Senior Frontend Engineer - React

Koralplay - Company

Loire-Atlantique, Pays de la Loire, ๐Ÿ‡ซ๐Ÿ‡ท FranceFull-time - Senior (4-7 years)0 applicantsCloses Jun 14, 2026

Salary

EUR 45,000 - 55,000 / year

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Job description

Role overview

Koralplay seeks a Senior Frontend Engineer to design and develop high-traffic web interfaces with a focus on user experience, performance, and reliability. You'll work in product teams using JavaScript, React, and TypeScript to build scalable digital solutions. The role emphasizes collaboration, technical leadership, and delivering robust user-facing applications.

Key priorities include optimizing complex UI components, ensuring cross-browser compatibility, and maintaining code quality through best practices.

Responsibilities

  • Design and develop scalable web interfaces using React, JavaScript, and TypeScript
  • Collaborate with product teams to define and implement user-centric features
  • Optimize application performance and ensure robust, maintainable code

Requirements

  • 4+ years of experience in front-end development with React and JavaScript
  • Proficiency in TypeScript and modern web development practices
  • Strong understanding of user experience principles and performance optimization

Benefits

  • Competitive salary and performance bonuses
  • Opportunities for professional growth and skill development
  • Flexible work arrangements and collaborative team environment

Keywords

ReactJavaScriptTypeScriptUser ExperiencePerformance OptimizationWeb Development