Requirements: English
Company: Oskar Bogucki - uslugi informatyczne
Region: Warsaw , Masovian Voivodeship
technologies-expected :
- React Native
- React.js
- TypeScript
- Figma
- JavaScript
about-project :
- Poszukujemy Frontend Developera do wsplpracy z irlandzkim startupem rozwijajacym mobilna aplikacje zdrowotna skierowana glwnie do mezczyzn na rynku amerykanskim. W przyszlosci planujemy rozszerzenie oferty rwniez o rozwiazania dla kobiet i dzieci. Jestesmy na etapie szybkiego wzrostu i poszukujemy osoby, ktra pomoze nam rozwijac nowoczesny, skalowalny i dopracowany produkt. Pracujemy w malym, zgranym zespole z duza swoboda dzialania i realnym wplywem na ksztalt aplikacji.
responsibilities :
- Tworzenie i rozwijanie aplikacji mobilnych przy uzyciu frameworka React Native
- Wsplpraca z zespolem projektowym, w tym z projektantami UX/UI oraz backend developerami
- Integracja zewnetrznych bibliotek i API w aplikacjach mobilnych
- Optymalizacja wydajnosci aplikacji i zapewnienie jej responsywnosci na rznych platformach
requirements-expected :
- 4-5+ years of commercial experience with React Native, including both greenfield projects and legacy systems.
- Proficiency in TypeScript and JavaScript (ES6+), with knowledge of design patterns, clean code principles, and strong typing.
- Experience creating and integrating native modules in React Native for iOS (Objective-C/Swift) and Android (Java/Kotlin).
- Familiarity with native AV libraries (AVPlayer, ExoPlayer), And LLM - big plus.
- Strong debugging skills (Flipper, React Native DevTools, Chrome DevTools, Android Studio Profiler, Xcode Instruments) and performance optimization experience (profiling, render time minimization, memory optimization).
- Solid knowledge of Expo and Bare Workflow, including EAS Build and EAS Update.
- Familiarity with various state management and data handling approaches, including integration with popular backends/cloud services (REST, GraphQL, Firebase), as well as caching, synchronization, and app architecture libraries.
- Experience with building and publishing mobile apps (Google Play, App Store), including CI/CD setup (e.g., Fastlane, EAS, Bitrise, GitHub Actions).
- Ability to write unit and integration tests (Jest, React Native Testing Library, Detox).
- Team collaboration using modern tools (Git, PRs, Code Review, CI/CD), paired with independence and initiative.
- Proactive, communicative attitude and a passion for sharing knowledge - as important to us as technical skills.
- Fluent English (min. B2).
- Willingness to work with clients across different time zones (mainly USA) - flexibility in working hours and availability for meetings.
- Customer-oriented approach and ability to translate business requirements into technical solutions.