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Senior Front-End developer

znoydzem.com Logo

Znojdziem IT recruitment agency

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Location:
Poland , Warsaw

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

Our client is a global leader in the live-streaming industry, with over 450 million registered users worldwide. The company builds a cutting-edge B2C platform that empowers millions of talented creators to share live content, engage with audiences, and monetize their skills — all powered by top-tier video streaming technology. The company culture is dynamic, innovative, and growth-oriented. With a strong global presence and 500+ employees, the team values creativity, technical excellence, and collaboration.

Job Responsibility:

  • Develop and maintain Single Page Applications (SPA) using React.js — including mobile-first web versions and admin panels
  • Collaborate with cross-functional teams to meet both product and technical goals
  • Integrate backend APIs (REST, WebSocket)
  • Proactively optimize and improve existing solutions, focusing on performance, scalability, and architecture
  • Conduct code reviews and ensure adherence to best practices
  • Share knowledge and expertise within the development team

Requirements:

  • 5+ years of experience in JavaScript (ES6+)/TypeScript development
  • Strong expertise in React.js and its ecosystem (Hooks, Context API)
  • Proven experience with state management frameworks, especially Redux (Redux Toolkit preferred)
  • Proficiency in responsive design using SCSS/SASS, CSS Modules, or Styled Components
  • Understanding of React performance optimization (lazy loading, memoization, virtualization)
  • Hands-on experience with build tools (Webpack or Vite)
  • Familiarity with modern development workflows (CI/CD, ESLint)
  • Intermediate level of English or higher

Nice to have:

  • Experience with graphic engines (PixiJS, Godot, Babylon)
  • Familiarity with Next.js or other SSR frameworks
  • Understanding of micro-frontend architectures and module federation
  • Experience with video streaming technologies (HLS, WebRTC)

Additional Information:

Job Posted:
January 17, 2026

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