React Native Developer

🏢 Summary: 4-month freelance contract for a Senior React Native Developer to build and maintain a cross-platform mobile application for iOS and Android based on an existing web platform. The role focuses on implementing new features, integrating APIs, optimizing performance, and contributing to architecture and code quality. The application supports monitoring and operational control of autonomous cleaning robots in large commercial facilities. 🗂️ Requirements: Availability from July 1st, 4+ years of commercial software development experience, Strong knowledge of React Native, Strong knowledge of TypeScript, Experience with REST API integrations, Understanding of App Store release processes, Understanding of Google Play release processes, Experience working in Agile teams, Proficiency with Git 📃 Skills: React, ReactNative, TypeScript, REST, Git, iOS, Android, Swift, Kotlin, CI/CD, Agile 🏢 Description: We are looking for an experienced Senior React Native Developer responsible for building and maintaining modern mobile applications for both iOS and Android platforms. The person in this role will collaborate closely with the project team on application architecture, implementation of new features, and performance optimization. This is a 6-month freelance contract (with a possibility of extension, though not guaranteed). Requirements: Availability starting July 1st 4+ years of commercial software development experience strong knowledge of React Native and TypeScript experience with REST API integrations understanding of App Store and Google Play release processes experience working in Agile teams good knowledge of Git Nice to have: experience with native iOS (Swift) or Android (Kotlin) development familiarity with CI/CD pipelines for mobile applications experienced in using AI tools in day-to-day workflow Responsibilities: Develop and maintain a cross-platform mobile application using React Native for iOS and Android. Implement new features based on the existing web application and business requirements. Collaborate with backend, web, QA, and product teams to ensure seamless integration and consistent user experience. Integrate REST APIs and real-time communication mechanisms. Optimize application performance, stability, and scalability. Participate in architecture discussions, code reviews, and technical decision-making. Troubleshoot, debug, and resolve application issues. Contribute to improving development standards, CI/CD processes, and overall code quality Project description: Development of a mobile application based on an existing web platform used for managing autonomous cleaning robots operating in shopping malls, airports, and other large commercial facilities. The application will support robot monitoring, task management, real-time status tracking, and operational control for end users.

🏢 Summary: Senior React Native Developer role focused on designing, developing, and maintaining cross-platform mobile applications using React Native. The position involves building new features, optimizing performance, integrating backend services, and ensuring high code quality. It requires strong expertise in modern JavaScript/TypeScript and mobile development practices. 🗂️ Requirements: Minimum 4 years of mobile application development experience, At least 2 years of commercial experience with React Native, Strong knowledge of JavaScript (ES6+), Strong knowledge of TypeScript, Experience with state management (Redux or Context API), Experience integrating REST API or GraphQL, Experience publishing apps to App Store and Google Play, Ability to debug and optimize mobile applications, Experience with CI/CD tools, Experience with code reviews and applying best coding practices 📃 Skills: React, ReactNative, JavaScript, TypeScript, Redux, ContextAPI, REST, GraphQL, CI/CD, iOS, Android, Swift, Objective-C, Kotlin, Java, Jest, Detox, Fastlane, Bitrise, AppCenter 🏢 Description: We are seeking an experienced Senior React Native Developer to join our team. In this role, you will be responsible for designing, developing, and maintaining mobile applications using React Native. The ideal candidate has a strong background in JavaScript/TypeScript, hands-on experience with React Native, and a solid understanding of mobile application development. Experience with native development for iOS and/or Android is a strong plus. Responsibilities Design and implement new features for mobile applications using React Native Maintain and enhance existing mobile applications Collaborate with project teams, designers, and QA engineers Optimize application performance and troubleshoot technical issues Participate in code reviews and share knowledge with the team Integrate applications with backend services (REST API, GraphQL) Apply best coding practices and ensure high code quality Requirements Minimum 4 years of experience in mobile application development, including at least 2 years with React Native Strong knowledge of JavaScript (ES6+) and TypeScript Experience with state management tools such as Redux, Context API, or similar Familiarity with publishing apps to the App Store and Google Play Ability to debug and optimize mobile applications Experience with CI/CD tools Good command of English, both written and spoken, for technical communication Nice to have Experience with native iOS development (Swift/Objective-C) and/or Android development (Kotlin/Java) Familiarity with tools like Fastlane, Bitrise, App Center Experience with mobile app testing (e.g., Jest, Detox) Understanding of mobile application security best practices We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior React Native Engineer role to build a greenfield mobile application for a digital asset bank, with full ownership over architecture and key technical decisions. The position involves close collaboration with the Tech Lead and backend teams to deliver a secure, scalable fintech product. 🗂️ Requirements: Experience in banking or fintech, Strong experience with React Native, Experience in mobile development for iOS and Android, Ability to design application architecture, Ability to make and justify technical decisions, Experience with TypeScript, Experience with state management, Experience with testing in mobile applications, Experience with CI/CD pipelines, Experience with AI coding tools 📃 Skills: React, ReactNative, TypeScript, iOS, Android, CI/CD, Copilot, Swift, Kotlin, Blockchain, Crypto, Testing, StateManagement 🏢 Description: We are looking for an experienced Senior React Native Engineer to build a mobile application from scratch for a digital asset bank. The role involves designing architecture, making key technical decisions, and working closely with the Mobile Tech Lead. Key requirements: Experience in banking/fintech (required) Strong expertise in React Native and mobile development (iOS/Android) Ability to make and justify technical decisions based on past experience Solution-oriented and proactive mindset Knowledge of TypeScript, state management, testing, and CI/CD Experience with AI coding tools (e.g., Copilot) Nice to have: Knowledge of crypto/blockchain Native mobile experience (Swift/Kotlin) Understanding of mobile security best practices Responsibilities: Build a mobile app from scratch (greenfield) Define architecture and standards Propose solutions and analyze trade-offs Collaborate with backend teams and the Tech Lead

🏢 Summary: B2B contract role for a Senior Mobile Engineer to develop and scale a high-traffic React Native mobile application used internationally. The position involves owning features end-to-end, contributing to architecture decisions, and collaborating closely with backend teams. The focus is on building performant, stable, and well-tested iOS and Android apps. 🗂️ Requirements: 4+ years of professional experience with React Native, Strong knowledge of iOS and Android platforms, Experience with app releases and distribution, Solid understanding of mobile architecture and design patterns, Experience with automated testing, Very good English communication skills, Working proficiency in Polish 📃 Skills: ReactNative, iOS, Android, JavaScript, MobileArchitecture, DesignPatterns, AutomatedTesting, AppStore, GooglePlay, English, Polish 🏢 Description: Senior Mobile Engineer (React Native) Location: Remote Contract: B2B Salary: up to 30 000 PLN net / month About the company A product-focused technology company developing a mobile and web platform that supports educational institutions and families in their daily operations. The product simplifies communication, reduces administrative work, and is used at scale by a large and growing international user base. Role overview The company is looking for an experienced Senior Mobile Engineer (React Native) to help develop and scale a high-traffic mobile application. You will work on core product features, contribute to architectural decisions, and collaborate closely with backend and product teams. Responsibilities Develop and maintain a large-scale React Native mobile app (iOS & Android) Own features from concept to production Collaborate with backend engineers on new functionality Write clean, maintainable, and well-tested code Contribute to architectural and technical decisions Optimize performance, stability, and developer experience Requirements 4+ years of professional experience with React Native Strong knowledge of iOS and Android platforms Experience with app releases and distribution Solid understanding of mobile architecture and design patterns Experience with automated testing Very good English communication skills Working proficiency in Polish Nice to have Experience with Firebase Knowledge of mobile analytics tools Advanced testing experience Familiarity with the JavaScript ecosystem (Node.js, React, Next.js) Understanding of mobile UI/UX principles What’s offered 30 000 PLN net monthly (B2B) 20–26 days of paid time off Modern equipment and tools Benefits package (sports card, private healthcare, English lessons) High autonomy and real impact on product and technical decisions Transparent culture with no micromanagement

🏢 Summary: Senior React Native Developer role focused on building and evolving a global mobile platform with digital services and loyalty programs used by millions of users. The position involves architectural decision-making, development of complex multi-module applications, native integrations, and mentoring within the team. The offer includes long-term cooperation, access to modern technologies, and a hybrid work model in Warsaw. 🗂️ Requirements: Minimum 5 years of commercial software development experience, At least 4 years of hands-on experience with React Native, Expert knowledge of TypeScript, Strong experience with modern JavaScript, Practical experience with MobX, Knowledge of React Query or TanStack Query, Experience with React Hooks, Experience building and maintaining native modules for iOS and Android, Experience working with REST API and GraphQL, Experience with CI/CD processes, English proficiency at minimum C1 level, Availability to work in hybrid mode (2 days per week in Warsaw office) 📃 Skills: React, ReactNative, TypeScript, JavaScript, MobX, ReactQuery, TanStackQuery, REST, GraphQL, CI/CD, iOS, Android 🏢 Description: Wspólnie z naszym Partnerem z sektora paliwowo-detalicznego poszukujemy doświadczonej osoby na stanowisko Senior React Native Developer . Projekt to globalna platforma mobilna z usługami cyfrowymi i programami lojalnościowymi, z której korzystają miliony użytkowników. Jej wielomodułowa architektura pozwala na ponowne wykorzystanie kodu i szybkie wdrażanie nowych funkcji. 💡 TWOJA ROLA Projektowanie, rozwój i utrzymanie złożonych aplikacji mobilnych w oparciu o React Native oraz TypeScript . Prowadzenie przeglądów kodu, mentoring zespołu oraz promowanie dobrych praktyk inżynierskich. Podejmowanie decyzji architektonicznych i rozwój wielomodułowej platformy mobilnej. Doskonalenie wydajności, niezawodności, skalowalności i utrzymywalności aplikacji. Prowadzenie dyskusji technicznych oraz współtworzenie projektów rozwiązań. Identyfikacja długu technologicznego i inicjowanie usprawnień w bazie kodu. Integracja natywnych funkcji mobilnych oraz usług zewnętrznych. 🔍 CZEGO OCZEKUJEMY OD CIEBIE? Co najmniej 5-letnie komercyjne doświadczenie w wytwarzaniu oprogramowania, w tym minimum 4 lata praktyki z React Native . Ekspercka znajomość TypeScript i nowoczesnego JavaScript oraz rozległe doświadczenie z MobX . Dobra znajomość React Query/TanStack Query , strategii synchronizacji danych oraz React Hooks Doświadczenie w tworzeniu i utrzymaniu modułów natywnych dla iOS oraz Android . Praca w trybie hybrydowym , dwa dni w tygodniu w biurze w Warszawie. Doświadczenie z REST API , GraphQL oraz procesami CI/CD . Znajomość języka angielskiego na poziomie co najmniej C1 . ✨ OFERUJEMY 🤖 Nowoczesny proces rekrutacji z AI Rekruterem (AIR) - podczas aplikacji możesz odbyć rozmowę z wirtualnym rekruterem 24/7, bez czekania na telefon. Dostajesz natychmiastowy feedback, a finalną decyzję zawsze podejmuje Rekruter Connectis. Uczestnictwo w spotkaniach integracyjnych oraz meetupach technologicznych, umożliwiających dzielenie się wiedzą i doświadczeniem. Wsparcie dedykowanej osoby kontaktowej z Connectis, dostępnej w celu pomocy w sprawach związanych z projektem. Rozwój kariery i długofalową współpracę w firmie o ugruntowanej pozycji na rynku. Dostęp do najnowszych technologii i narzędzi pracy. 5000 PLN za polecenie znajomego do projektów. Szybki i zdalny proces. Dziękujemy za wszystkie zgłoszenia. Informujemy, że skontaktujemy się wyłącznie z wybranymi osobami. 12933/MP

🏢 Summary: Long-term remote B2B contract for a Senior React Native Developer to build and scale a greenfield mobile application for iOS and Android from scratch. The role focuses on delivering a high-traffic, content-driven app with personalisation, real-time engagement features, and scalable architecture. Strong ownership and direct collaboration with international product teams are expected. 🗂️ Requirements: 5+ years commercial experience with React Native, Experience building production mobile apps from scratch, Experience with iOS and Android platforms, Experience with REST API integrations, Experience with CMS or DAM integrations, Experience implementing push notifications, Experience implementing deep linking, Experience with analytics and event tracking, Experience with performance optimisation, Experience with A/B testing or personalisation platforms, Experience with App Store and Google Play release processes, Experience with unit or component testing, English level C1+, Availability before Q3 start, Ability to work on B2B contract 📃 Skills: React, ReactNative, JavaScript, TypeScript, iOS, Android, REST, CMS, DAM, Firebase, Amplitude, Analytics, A/B, Testing, Push, DeepLinking, Node.js, Next.js, Mapbox, GoogleMaps 🏢 Description: Senior React Native Developer (iOS & Android) We are looking for an experienced Senior Mobile Developer (React Native) to join a long-term international project for a premium luxury retail brand. You will work on a completely new mobile product built from scratch for both iOS and Android, serving 250k+ daily users from launch. The project focuses on creating a modern, content-driven mobile experience with personalised feeds, exclusive offers, and real-time customer engagement features. This is a greenfield project with no legacy code and strong ownership opportunities from day one. Project Details 100% Remote Full-time (40h/week) B2B contract Rate: 100 - 125 PLN/h net Long-term cooperation (9 months + possible extension) Start: ASAP / Q3 Required overlap: 14:00–18:00 CET Occasional travel: max once per quarter English: C1+ required Responsibilities Building and maintaining a React Native mobile application for iOS and Android Designing scalable mobile architecture from scratch Integrating CMS, APIs, personalisation and experimentation platforms Implementing push notifications, deep linking and campaign flows Optimising app performance for high-traffic environments Collaborating directly with an international client and product teams Ensuring code quality through testing and best engineering practices Must-Have Requirements 5+ years of commercial React Native experience Strong experience with both iOS and Android applications Experience delivering production mobile apps from scratch Hands-on experience with: REST API integrations CMS / DAM integrations Push notifications Deep linking Analytics & event tracking Performance optimisation A/B testing or personalisation platforms Experience with App Store & Google Play release processes Good testing practices (unit/component testing) English level C1+ (spoken and written) Nice to Have Firebase / Amplitude Feature flagging & experimentation platforms Headless CMS in retail or e-commerce Streaming APIs AI-assisted features GDPR / consent management tooling Google Maps / Mapbox E2E testing Node.js / React / Next.js Polish language skills Important Please apply only if: you are available before the Q3 project start, you have commercial React Native experience for both iOS and Android, you can work on a B2B basis (Polish entity preferred). Recruitment Process CV review & pre-screening Technical interview Client interview (in English) Offer If you’re interested, send: your CV in English, your availability, expected hourly rate (B2B, net PLN), short information about your experience with React Native and CMS/personalisation integrations.

🏢 Summary: Senior React Native Developer role focused on evolving and optimizing a mobile mobility application, improving user journeys and conversion rates. The position involves end-to-end feature ownership, performance optimization, and expansion of the app using the Expo ecosystem. It requires close collaboration with cross-functional teams and contribution to technical decisions and mobile roadmap direction. 🗂️ Requirements: 8–10+ years of software development experience, 5+ years of experience with React Native, Strong proficiency in JavaScript, Strong proficiency in TypeScript, Hands-on experience with Expo, Experience with state management libraries (Zustand, Redux, or MobX), Understanding of GraphQL APIs, Understanding of REST APIs, Experience building complex, scalable mobile applications, Experience working in cross-functional product teams 📃 Skills: React, ReactNative, JavaScript, TypeScript, Expo, Zustand, Redux, MobX, GraphQL, REST, APIs 🏢 Description: Role Overview We are looking for a Senior React Native Developer to a team focused on evolving the mobile experience of a mobility application. You will play a key role in optimizing user journeys, improving conversion rates, and enhancing existing features while contributing to the expansion into new markets. Key Responsibilities Design, build, and maintain high-performance, scalable, and reusable React Native applications. Optimize application performance, quality, and responsiveness. Own the end-to-end development of features within the conversion domain. Continuously discover, evaluate, and implement new technologies (with strong emphasis on Expo ecosystem). Collaborate closely with cross-functional teams (1 BE developer, 1 designer, FE team). Break down business goals into iterative, deliverable development steps. Communicate progress, blockers, and technical decisions effectively. Contribute to technical decision-making and mobile roadmap direction. Must Have Requirements 8–10+ years of software development experience. 5+ years building complex React Native applications. Strong proficiency in JavaScript / TypeScript. Hands-on experience with Expo (critical requirement). Strong expertise in state management (preferably Zustand, but Redux/MobX also acceptable). Solid understanding of GraphQL and REST APIs. Experience working in cross-functional product teams. Strong communication skills and proactive, ownership-driven mindset. Nice to Have Experience with automated testing frameworks. Familiarity with offline storage solutions. Experience optimizing conversion funnels or user journeys in mobile apps. Other Details: This position allows for remote work from Romania and is suited for individuals ready to take on new challenges in a dynamic environment.

🏢 Summary: Contract role for a Senior React Native Developer to build and maintain mobile applications for a robot control and task management platform. The position involves developing cross‑platform solutions for iOS and Android, contributing to architecture decisions, implementing new features, and optimizing performance. Remote work within CET hours with a potential project extension. 🗂️ Requirements: 4+ years commercial software development experience, Strong ReactNative knowledge, Strong TypeScript knowledge, Experience with REST API integration, Understanding of AppStore release process, Understanding of GooglePlay release process, Experience working in Agile teams, Proficiency with Git 📃 Skills: ReactNative, TypeScript, REST, Git, Agile, iOS, Android, AppStore, GooglePlay 🏢 Description: Senior React Native Developer Remote (CET working hours) Start: 01.06 Cooperation until 30.09 with possible extension Rate: 120 - 135zł/h We are looking for an experienced Senior React Native Developer to join an international project focused on a robot control and task management platform . You will be responsible for building and maintaining modern mobile applications for both iOS and Android , collaborating closely with the team on application architecture, new features implementation, and performance optimization. Requirements 4+ years of commercial software development experience Strong knowledge of React Native and TypeScript Experience with REST API integrations Understanding of App Store and Google Play release processes Experience working in Agile teams Good knowledge of Git Nice to have Experience with native iOS (Swift) or Android (Kotlin) development Familiarity with CI/CD pipelines for mobile applications Project domain: Robot control and task platform Scope: Mobile application development

🏢 Summary: Oferta dotyczy krótkoterminowego projektu typu greenfield polegającego na całkowitym przepisaniu istniejącej aplikacji natywnej od zera w technologii React Native. Poszukiwana jest doświadczona osoba, która wesprze zespół w zaprojektowaniu nowej architektury i dostarczaniu wysokiej jakości kodu. Projekt przewidziany jest na około 3,5 miesiąca w modelu B2B. 🗂️ Requirements: Komercyjne doświadczenie na stanowisku Senior React Native Developer, Doświadczenie w budowaniu aplikacji mobilnych od podstaw (from scratch), Zrozumienie specyfiki aplikacji natywnych, Biegła znajomość języka polskiego, Znajomość języka angielskiego na poziomie minimum B2 📃 Skills: React, ReactNative, JavaScript, TypeScript, Mobile, Android, iOS 🏢 Description: Obecnie dla naszego klienta poszukujemy doświadczonego Senior React Native Developera . Dołączysz do projektu, którego głównym celem jest całkowity rebuild istniejącej aplikacji natywnej – będziesz pisać ją zupełnie od zera w technologii React Native. Szukamy osoby z dużą samodzielnością techniczną, która wesprze zespół swoim doświadczeniem przy tworzeniu nowej architektury i dostarczaniu wysokiej jakości kodu. Szczegóły współpracy: Rodzaj projektu: Rebuild istniejącej aplikacji natywnej (pisanie od zera w React Native). Czas zaangażowania: Wstępnie 3,5 miesiąca. Data startu: 15.07 (z potencjalnym zaangażowaniem na kilka godzin już w tym tygodniu w celu sprawnego onboardingu/setupu). Stawka: 115 - 120 zł netto/h. Rodzaj umowy: B2B. Czego oczekujemy: Komercyjnego doświadczenia na stanowisku Senior React Native Developera. Doświadczenia w budowaniu aplikacji mobilnych od podstaw ("from scratch"). Ogólnego zrozumienia specyfiki aplikacji natywnych (co znacząco ułatwi proces przepisywania istniejącego rozwiązania). Biegłej, płynnej znajomości języka polskiego (komunikacja w zespole). Znajomości języka angielskiego na poziomie minimum B2. Oferujemy: Jasne i przejrzyste warunki finansowe (115-120 zł/h B2B). Ciekawą pracę przy projekcie typu "greenfield", gdzie masz realny wpływ na to, jak nowa aplikacja zostanie zbudowana. Sprawny i szybki proces rekrutacyjny.

🏢 Summary: The role focuses on integrating React Native solutions into an existing native iOS/Android mobile platform, designing architecture and implementing hybrid modules within a mature codebase. The position involves bridging React Native and native layers, optimizing performance, and contributing to scalable, maintainable mobile architecture. 🗂️ Requirements: Strong commercial experience with React Native, Experience in native mobile development (iOS and/or Android), Understanding of mobile application architecture, Experience integrating React Native with native applications, Ability to implement cross-layer communication and bridging, Experience with navigation and state management, Familiarity with CI/CD processes and build tools, Focus on code quality and performance optimization 📃 Skills: React, ReactNative, JavaScript, TypeScript, iOS, Android, Swift, Kotlin, Objective-C, Java, CI/CD, Git, Xcode, Gradle 🏢 Description: We are looking for an experienced React Native Developer to support the integration of React Native solutions into an existing native mobile platform (iOS/Android). Responsibilities: Designing and implementing an architectural approach to combine React Native components with the native application Analyzing the current mobile architecture and identifying optimal integration points Implementing and developing React Native modules within the existing native codebase Ensuring scalability, performance, and maintainability of the solution Handling communication between native and React Native layers (data flow, bridging) Contributing to and optimizing build/deployment processes Maintaining high code quality and alignment with platform standards Close collaboration with iOS and Android teams to ensure smooth integration of new features Requirements: Strong knowledge of React Native with proven commercial experience Experience in native mobile development (iOS and/or Android) Solid understanding of mobile application architecture Experience integrating hybrid solutions with native applications Ability to work with navigation, state management, and cross-layer communication Familiarity with CI/CD processes and build tools Strong focus on code quality, performance, and readability Good teamwork and communication skills Nice to have: Experience working with large, existing mobile systems Knowledge of mobile performance optimization best practices Experience working in Agile environments We offer: Opportunity to work on a modern mobile platform Collaboration with an experienced development team Real impact on architecture and product direction Flexible working conditions