Senior React Native Developer (f/m/x)

🏢 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: B2B contract for a Senior React Native Developer to build and maintain a white-label, multi-tenant mobile ordering platform for iOS and Android. The role focuses on developing scalable, production-grade applications with advanced mobile features and clean architecture. Initial 4-month engagement with possible extension, starting in June. 🗂️ Requirements: Minimum 3 years commercial experience with React Native and shipped production apps, Strong TypeScript skills including strict mode, generics, utility types, Deep knowledge of React Navigation and complex navigation patterns, Experience with React Native Reanimated (v2+) and gesture-based interactions, Solid knowledge of iOS and Android build systems (Gradle, Xcode, signing, schemes/flavours), Experience debugging native crashes and JS bundle issues, Proficiency with TanStack Query (or React Query), Experience with Zustand or similar state management, Ability to design and maintain typed API clients and data-fetching layer, Experience with modular or feature-based architecture, English level B2 or higher, Experience working in Agile/Scrum environments 📃 Skills: ReactNative, TypeScript, ReactNavigation, Reanimated, Zustand, TanStackQuery, iOS, Android, Gradle, Xcode, JavaScript, Scrum 🏢 Description: We are looking for an experienced Senior React Developer to join the team working on a white-label mobile ordering platform for restaurants. The product is built as a shared, multi-tenant solution, where each client receives their own fully branded mobile application powered by a common codebase. Who we are: We are Inspeerity (part of DevelopX group), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. TL;DR • Who : Senior React Native Developer • Contract Type : B2B • Salary range: Up to 150 PLN/h + VAT • Start date : from ~9th June • Term of the agreement : ~ 4 months with possibility of prolongation What you’ll be doing: Developing and maintaining production-grade mobile applications in React Native for iOS and Android platforms. Designing and implementing scalable, maintainable, and modular application architecture within a multi-tenant / white-label environment. Building advanced mobile features using TypeScript, React Navigation, Reanimated, and gesture-based interactions. Managing application state, server communication, caching, and API integrations using TanStack Query, Zustand, and typed API clients. Ensuring high code quality through clean architecture, reusable components, strong naming conventions, and maintainable code practices. Participating in agile development processes, including sprint planning, reviews, demos, and close collaboration with international stakeholders. Presenting delivered features during sprint reviews and proactively suggesting product and technical improvements. Supporting the QA process during regression testing and contributing to overall product stability and performance. You will be the best fit if you have: At least 3 years of commercial React Native experience with shipped production apps. Strong TypeScript skills - strict mode, generics, utility types. Deep understanding of React Navigation and complex navigation patterns. Experience with React Native Reanimated (v2+) and gesture-based interactions. Solid knowledge of iOS and Android build systems (schemes/flavours, signing, Gradle, Xcode). Experience debugging native crashes, JS bundle issues. Proficiency with TanStack Query (or React Query). Experience with Zustand or comparable lightweight state management. Ability to design and maintain a clean data-fetching layer with typed API clients. Experience working in a feature-based or modular architecture. Comfortable presenting your own work to stakeholders every two weeks. Proactive mindset: expected to raise observations, propose improvements, and drive initiatives - not just execute tickets. Strong problem-solving and debugging skills. English level B2 or higher. Hands-on experience working in Agile / Scrum environments. What we offer: Hybrid and flexible cooperation model based on a B2B contract. Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you! Great working conditions and best equipment. Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it.

🏢 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: 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 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: Senior React Developer role focused on building and optimizing modern web applications using React, Angular, and TypeScript in a hybrid Warsaw-based environment. The position involves collaborating with cross-functional teams, implementing testing best practices, and working with micro front-end architectures and reactive programming. Candidates will contribute to scalable, high-performance digital products while leveraging modern front-end tools and frameworks. 🗂️ Requirements: 5+ years of front-end web development experience, Strong knowledge of React, Strong knowledge of TypeScript, Experience with Jest, Cypress, or Playwright, Experience building responsive web applications, Knowledge of micro front-end architectures, Experience with RxJS, Experience in agile SDLC environments, Ability to manage multiple projects, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model (4 days per week in the office) As a Senior React Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Eligibility for the role: Only candidates with an existing legal right to work in the European Union 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.

🏢 Summary: Senior React Developer role focused on building and optimizing modern, high-performance web applications using cutting-edge front-end technologies in a hybrid Warsaw-based setup. The position involves delivering scalable solutions, implementing testing best practices, and integrating micro front-end architectures. You will collaborate with cross-functional teams to create responsive, high-quality digital products. 🗂️ Requirements: 5+ years of front-end web development experience, Strong expertise in React and TypeScript, Experience with testing frameworks: Jest, Cypress, or Playwright, Experience building responsive, scalable web applications, Knowledge of micro front-end architectures, Experience with reactive programming and RxJS, Experience with modern build tools, Experience working in Agile SDLC environments, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, JavaScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS, Microfrontends, HTML, CSS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model (4 days per week in the office) As a Senior React Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Eligibility for the role: Only candidates with an existing legal right to work in the European Union 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.

🏢 Summary: Senior React Developer role focused on building a modular, component-based UI platform for a core financial engine within a fully remote model. The position involves developing new features, integrations, and contributing to architectural decisions in an agile, fast-paced environment. The role requires strong ownership and collaboration within a small frontend team. 🗂️ Requirements: 5+ years of professional frontend development experience, Strong experience with React, Strong understanding of REST APIs, Strong knowledge of CSS, Experience with component-based UI design, Ability to manage complex tasks independently, Communicative Polish and English, Legal right to work in the European Union 📃 Skills: React, JavaScript, REST, CSS, Kubernetes, Grafana, Prometheus, Jira, Confluence 🏢 Description: Unleash the Power of Innovation - Build Next-Generation Financial Platforms! 100% remote work model As a Senior React Developer , you will be working for our client, a leading player in the financial industry, dedicated to creating cutting-edge, flexible, and scalable digital solutions. Join a team responsible for developing a core financial engine platform, delivering impactful UI components, and shaping the future of financial technology within an agile environment. Your main responsibilities: Develop and enhance a modular, component-based UI platform from scratch using React Collaborate closely with a small, autonomous frontend team to ensure seamless integration with the core financial engine Take ownership of tasks in a fast-paced environment, managing your workload proactively without direct oversight Implement new features and integrations, possibly connecting with other frontend systems, ensuring high performance and usability Contribute to the platform’s architecture and design decisions, ensuring adaptability and scalability You're ideal for this role if you have: 5+ years of professional experience in frontend development, particularly with React Strong understanding of REST APIs, CSS, and component-based UI design Experience working in autonomous teams, managing complex development tasks from start to finish Familiarity with Kubernetes, Grafana, Prometheus, Jira, and Confluence is a plus A proactive attitude with excellent problem-solving skills Language Required for the role: Communicative Polish and English levels Eligibility to work on this role: Only candidates with an existing legal right to work in the European Union 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.

🏢 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 Developer with AWS role focused on designing and architecting scalable, cloud-native web applications for digital banking platforms using React, TypeScript, and AWS in an on-site model in Warsaw. The position involves leading technical decisions, building serverless solutions, and supporting cloud migration initiatives. The role combines hands-on development with architectural guidance in a modern, microservices-driven environment. 🗂️ Requirements: 8+ years of software engineering experience, Strong expertise in React, Strong expertise in TypeScript, Hands-on experience with AWS (Lambda, Batch, CloudWatch), Proficiency in Terraform or other Infrastructure-as-Code tools, Experience with relational and non-relational databases (MongoDB, ElasticSearch, S3), Knowledge of RESTful API design and development, Bachelor’s degree in Computer Science, Engineering, Mathematics or related field, Fluent Polish and English, Legal right to work in Europe 📃 Skills: React, TypeScript, AWS, Lambda, Batch, CloudWatch, Terraform, MongoDB, ElasticSearch, S3, REST, CI/CD, Serverless, Microservices 🏢 Description: Empower the Future of Financial Technology — Design Scalable, Cloud-Native Applications with React and AWS Warszawa-based opportunity with on-site work model As a Senior React Developer with AWS , you will be working for our client, a global leader in financial technology dedicated to transforming the industry with innovative, cloud-native web solutions. Join this high-impact project to shape the future of digital banking platforms, leveraging AI, microservices, and modern development practices. Be a vital part of a forward-thinking environment driving cutting-edge cloud migration strategies, delivering scalable and high-performance systems across international markets. Your main responsibilities: Architect and engineer modern web applications using React, TypeScript, and AWS services Lead technical decision-making and provide architectural guidance to the development team Develop and maintain serverless solutions utilizing AWS Lambda, Batch, and CloudWatch Write Infrastructure-as-Code with Terraform to streamline deployment and infrastructure management Collaborate with designers, product managers, and stakeholders to translate requirements into robust solutions Support migration of legacy systems toward cloud-native, React-based architectures Optimize CI/CD pipelines for automated, efficient deployment Work with cloud storage solutions such as S3, MongoDB, and ElasticSearch You're ideal for this role if you have: 8+ years of practical software engineering experience Strong expertise in React and TypeScript Hands-on experience with AWS services, especially Lambda, Batch, and CloudWatch Proficiency with Terraform or similar Infrastructure-as-Code tools Solid understanding of relational and non-relational databases (MongoDB, ElasticSearch, S3) Knowledge of RESTful API design and development Excellent communication skills to engage with non-technical stakeholders Bachelor's degree in Computer Science, Engineering, Mathematics, or related field It is a strong plus if you have: Experience with CI/CD pipelines Familiarity with serverless architecture best practices Knowledge of AI development tooling in cloud environments Language Required for the role: Fluent in Polish and English Eligibility to work in: Only candidates with an existing legal right to work in Europe 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.