JustJoin.IT Praca zdalna Mid

Senior React.js Front-End Developer – Web Applications

ITDS

⚲ Warszawa

21 000 - 30 450 PLN netto (B2B)

Wymagania

  • React.JS
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • HTML5 & CSS3
  • State Management (Redux/Zustand/React Query)
  • Web Performance & Accessibility
  • REST APIs
  • Testing (Jest/Cypress/Playwright)
  • Figma/Design Tools

Opis stanowiska

Empower innovation in web development — shape the future of seamless user experiences!

Location & Work Model:
Remote, EU – 5 days per weekAs a Senior React.js Front-End Developer – Web Applications, you will be working for our client, a leading player in the digital solutions industry. This role focuses on building high-performance, accessible web interfaces that elevate user engagement. Join us to craft innovative front-end experiences and accelerate your career growth in a dynamic environment.

Your main responsibilities:
• Develop responsive, accessible user interfaces from design specifications to production rollout
• Build and maintain applications using React.js and Next.js (or similar modern frameworks)
• Write clean, well-structured, and thoroughly tested code to ensure quality and maintainability
• Collaborate closely with designers, back-end developers, and product teams to deliver end-to-end features
• Optimize applications for performance, SEO, and cross-browser compatibility
• Participate in code reviews, contribute to front-end development standards, and promote best practices
• Leverage AI-assisted development tools to accelerate delivery and enhance code quality

You're ideal for this role if you have:
• Minimum of 6 years of experience in front-end development
• Strong expertise in modern JavaScript (ES6+) and TypeScript
• Proven experience with React.js and at least one major framework such as Next.js
• Solid knowledge of HTML5, CSS3, including responsive and accessible design principles
• Experience with REST APIs and asynchronous data handling
• Familiarity with version control systems like Git
• Good understanding of web performance optimization and accessibility standards

It is a strong plus if you have:
• Production experience with Next.js (SSR, SSG, routing, API routes)
• Knowledge of state management tools like Redux, Zustand, or React Query
• Experience with styling solutions like Tailwind, styled-components, or CSS Modules
• Testing expertise with tools such as Jest, React Testing Library, Cypress, or Playwright
• Hands-on experience with AI tools in development workflows (Claude, LLM APIs, prompt engineering)

Nice to Have:
• UX/UI Design skills and ability to translate wireframes into high-quality interfaces
• Familiarity with design tools such as Figma, Sketch, or Adobe XD
• Understanding of design systems and component libraries
Language Required for the role:
Fluent and professional command of English
Eligibility to work in the European Union:
Only candidates with an existing legal right to work in the EU will be considered for this role.
#MAKEYourCareerBETTER
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🔍 Dekoder Ogłoszenia

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Empower innovation in web development — shape the future of seamless user experiences!
To marketingowy slogan, który nie precyzuje konkretnych zadań ani technologii, ale ma na celu przyciągnięcie uwagi.
🔴
accelerate your career growth in a dynamic environment.
Może oznaczać szybki rozwój, ale też częste zmiany projektów, technologii lub priorytetów.
🔴
Leverage AI-assisted development tools to accelerate delivery and enhance code quality
Firma może oczekiwać szybszego tempa pracy dzięki narzędziom AI, co może oznaczać presję na wydajność.
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or similar modern frameworks
Wymagane jest doświadczenie z React.js i Next.js, ale 'podobne' frameworki mogą oznaczać, że firma jest otwarta na inne technologie, co może wymagać nauki.