Lead React Engineer

iTeamly KRAKÓW 2026-09-15
  • 7+ years of professional experience in frontend development
  • Strong expertise in React
  • Very good knowledge of JavaScript / TypeScript
  • Strong experience with Next.js or similar modern frontend frameworks
  • Deep understanding of frontend architecture, design patterns and best practices
  • Strong understanding of HTML and CSS
  • Experience building scalable and maintainable frontend applications
  • Experience integrating applications with REST APIs
  • Practical experience with frontend testing strategies and tools
  • Good understanding of Git and CI/CD practices
  • Experience mentoring engineers or acting as a technical leader within a team
  • Good command of English
  • Ability to take ownership of technical solutions and drive initiatives independently

Nice to have:

  • Experience working in the travel, aviation or e-commerce industry
  • Strong knowledge of Next.js, SSR/SSG approaches and frontend performance optimization
  • Experience with modern state management solutions (e.g. Redux, Zustand, React Query)
  • Experience designing frontend architecture for large-scale applications
  • Knowledge of UI/UX principles and experience working closely with designers
  • Experience with cloud platforms and modern deployment practices
  • Familiarity with AI-powered development tools (e.g. GitHub Copilot, Claude Code, Cursor) and using AI to improve engineering workflows
  • Experience integrating AI-powered features into web applications
  • Experience working in international and distributed engineering teams

We are looking for an experienced Lead React Engineer to join an international team working on modern digital solutions for the travel and aviation industry.

You will take a leading role in building and evolving customer-facing web applications supporting digital travel experiences — from searching and booking flights to managing trips and additional services. You will combine hands-on development with technical leadership, helping shape frontend architecture, engineering practices and the growth of the team.

Why join us

  • Work on a modern product used in the travel & aviation industry
  • International environment and experienced engineering team
  • Opportunity to influence frontend architecture, technical solutions and engineering practices
  • B2B contract
  • Long-term cooperation and opportunities for professional growth
  • Competitive employment package and benefits
,[Leading the development of modern web applications using React, Taking ownership of frontend architecture, technical decisions and engineering standards, Designing and building scalable, performant and user-friendly interfaces, Driving frontend best practices around code quality, performance and maintainability, Mentoring and supporting other frontend engineers through knowledge sharing and code reviews, Collaborating closely with backend developers, QA, UX/UI, DevOps and Product teams, Integrating frontend applications with REST APIs and backend services, Taking ownership of complex features from design through to delivery, Contributing to improving development processes and frontend engineering practices] Requirements: JavaScript, Next.js, HTML, REST API, SSR, Design Patterns, Git, CD, Testing, React, Redux, UI, UX, Cloud platform, GitHub, AI, Web applications
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