April 24, 2026
Senior / Mid Frontend Developer (React, Next.js, TypeScript)
Senior • Hybrid
150 - 180 PLN/hr
Warsaw, Poland
Branża: telekomunikacja
Stawka: 150-180 zł/h na b2b
Lokalizacja: Warszawa - hbryda 2 dni w tygodniu z biura
Podsumowanie: Szukamy Frontend Engineera, który chce budować nowoczesne, wydajne aplikacje webowe i mieć realny wpływ na produkt. Dołączysz do zespołu liczącego minimum 5 osób i będziesz pracować nad rozwojem aplikacji z naciskiem na jakość kodu, performance oraz doświadczenie użytkownika.
Zakres obowiązków:
Tworzenie i rozwój aplikacji w React i TypeScript (strict mode)
Praca z Next.js (SSR, API routes, podejście BFF)
Zarządzanie stanem przy użyciu TanStack Query, XState oraz Redux (legacy)
Budowanie formularzy z wykorzystaniem React Hook Form i Zod
Pisanie testów (Vitest, React Testing Library, Playwright)
Praca w architekturze monorepo (Nx lub Turborepo)
Współpraca w modelu hybrydowym
Wymagania:
Doświadczenie w React: 3–5 lat (Mid) lub 5+ lat (Senior)
Bardzo dobra znajomość TypeScript (strict mode, utility types, generics)
Doświadczenie z Next.js (SSR, API routes)
Znajomość zarządzania stanem (TanStack Query, XState lub Redux)
Doświadczenie z Tailwind CSS
Znajomość React Hook Form i Zod
Doświadczenie w testowaniu (Vitest, React Testing Library, Playwright)
Doświadczenie w pracy z monorepo (Nx lub Turborepo)
Znajomość języka angielskiego na poziomie min. B2
Mile widziane:
React Native i Expo
Doświadczenie w pracy z jednym codebase dla web i mobile
Znajomość Core Web Vitals (LCP, INP, CLS)
Doświadczenie z narzędziami analitycznymi (np. Synerise, Quantum Metric)
Znajomość OpenTelemetry
Znajomość standardów WCAG 2.2 AA
Doświadczenie z CI/CD (GitLab CI)
Wykorzystanie narzędzi AI w pracy (testy, refactoring, code review)
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Hybrid
Warsaw, Poland
🏢 Summary: Frontend Developer role focused on building and maintaining performant web applications using React, Next.js and TypeScript, with involvement in backend services and API integrations. The position includes designing responsive UX/UI interfaces, integrating REST/WebSocket services, and ensuring code quality, security and performance within an Agile team. 🗂️ Requirements: Minimum 3 years experience as Frontend Developer, Commercial experience with TypeScript and React/Next.js, Very good knowledge of TypeScript, React, Next.js, Redux, Node.js, Good knowledge of HTML5, CSS3, Tailwind CSS, Experience in designing and integrating REST API, Knowledge of design patterns and clean code principles, Experience in debugging, testing and code optimization, Understanding of application security, Experience working in Agile/Scrum 📃 Skills: TypeScript, React, Next.js, Redux, Node.js, HTML5, CSS3, Tailwind, REST, WebSocket, JavaScript, Agile, Scrum 🏢 Description: Programistka / Programista Frontend w Zespole Wytwarzania Oprogramowania Miejsce pracy: Warszawa Szukamy osoby, która posiada: Minimum 3 lata doświadczenia w roli Frontend Developera z TypeScript i React/Next.js Bardzo dobrą znajomość TypeScript, Next.js, React, Redux, Node.js Dobrą znajomość HTML5, CSS3, Tailwind CSS Doświadczenie w projektowaniu i integracji interfejsów REST API, Znajomość wzorców projektowych oraz zasad czystego kodu, Umiejętność debugowania, testowania i optymalizacji kodu, Dobre zrozumienie zagadnień bezpieczeństwa aplikacji, Znajomość zagadnień związanych z UX/UI Umiejętność pracy w zespole, doświadczenie w pracy w metodykach Agile/Scrum Co oferujemy? To zależy od Twoich potrzeb: Potrzebujesz wyzwań? Ciekawa, ambitna i odpowiedzialna praca w dynamicznie rozwijającym się zespole czeka na Ciebie. Chcesz zadbać o siebie i bliskich? Oferujemy prywatną opiekę medyczną oraz ubezpieczenia grupowe na życie. Chcesz się rozwijać? U nas będziesz mieć wiele okazji: programy szkoleniowe i rozwojowe, dofinansowanie do podnoszenia kwalifikacji zawodowych, możliwość awansu… Lubisz aktywność fizyczną? Mamy dla Ciebie kartę Multisport. Chcesz mieć chwilę dla siebie? Oferujemy dofinansowanie do wypoczynku. Twoim zadaniem będzie: Rozwój i utrzymanie wydajnych aplikacji webowych po stronie frontendu. Rozwój i utrzymanie usług backendowych Analiza wymagań i udział w planowaniu rozwoju aplikacji. Projektowanie oraz implementacja oprogramowania. Implementacja i rozwój responsywnych interfejsów z uwzględnieniem projektów UX/UI Integracja z back-end (REST, WebSocket). Opracowywanie testów jednostkowych i integracyjnych dla wytwarzanego oprogramowania Weryfikacja, debugowanie i usuwanie błędów. Udoskonalanie wdrożonych rozwiązań pod kątem wydajności, jakości i bezpieczeństwa. Ścisła współpraca z zespołem backendowym oraz UX/UI Dokumentacja wytworzonego oprogramowania. Czekamy na Twoje CV!