Freelance React Native Developer

🏢 Summary: Fixed-term, project-based collaboration for a Full Stack Developer to build and maintain modern, scalable web applications for international clients using a TypeScript-based stack. The role involves close cooperation with an in-house team to deliver high-quality solutions within defined timelines. It focuses on full-stack development across frontend and backend using modern JavaScript frameworks and cloud technologies. 🗂️ Requirements: Minimum 3 years of commercial software development experience, Commercial experience with TypeScript, Commercial experience with React, Commercial experience with Next.js, Commercial experience with Node.js, English proficiency at B2+ level, Fluent Polish (C1 or native), Technical university degree in IT or related field 📃 Skills: TypeScript, React, Next.js, Node.js, Nest.js, ReactNative, PostgreSQL, AWS, Docker, JavaScript 🏢 Description: Project-Based | Fixed-Term Collaboration At TeaCode , we’re expanding our network of trusted freelance developers for upcoming fixed-term, project-based collaborations . If you’re a Full Stack Developer looking for meaningful short-term projects, we’d love to hear from you! You’ll be joining us for a specific project, working alongside our in-house team to deliver modern, scalable digital solutions for international clients. This is a great opportunity if you enjoy focused, time-boxed assignments and want to collaborate with a like-minded, fast-moving team. Our core tech stack : TypeScript Next.js React React Native Nest.js Node.js PostgreSQL AWS Docker Key responsibilities: Develop and maintain full-stack web applications using TypeScript and modern frameworks (React, Next, Node, Nest) Write clean, efficient, and well-documented code, following industry best practices Collaborate with designers, developers to implement new features and improve existing functionalities Deliver high-quality code within project timelines and communicate clearly with project stakeholders and external clients Identify and fix bugs, optimize application performance, and ensure high reliability and scalability Requirements: Min. 3 years of commercial experience in software development Have an extensive knowledge as well as commercial experience in Typescript, React, Next.js, and Node.js Knowledge of English at min. B2+ level and fluent Polish (C1 or native) Technical university degree within IT field Self motivation, willingness to learn new things and positive attitude to change Good communication and teamwork skills are a must Experience in React Native would be an asset What we offer: A collaborative and supportive work environment Engaging projects that challenge your creativity and technical expertise Macbooks Pro equipment to work on Coworking office space in a vibrant location of Warsaw Recruitment process: HR screening (15-30 minutes) Technical interview: live coding session (1 hour) Decision About us: We are a software house based in Warsaw with over 50 people on board We work in one programming language → JavaScript/TypeScript We have clients from all over the world We are really flexible in working hours The atmosphere within the team is our great value

🏢 Summary: Fixed-term, project-based collaboration for a Senior Full Stack Developer to deliver scalable web applications for international clients. The role focuses on building and maintaining modern full-stack solutions using a TypeScript-based stack in close cooperation with an in-house team. It involves end-to-end development, performance optimization, and ensuring high code quality within defined timelines. 🗂️ Requirements: Minimum 5 years of commercial experience in software development, Commercial experience with TypeScript, Commercial experience with React, Commercial experience with Next.js, Commercial experience with Node.js, Experience in full-stack web application development, Technical university degree in IT or related field 📃 Skills: TypeScript, React, Next.js, Node.js, Nest.js, ReactNative, PostgreSQL, AWS, Docker, JavaScript 🏢 Description: Project-Based | Fixed-Term Collaboration At TeaCode , we’re expanding our network of trusted freelance developers for upcoming fixed-term, project-based collaborations . If you’re a Senior Full Stack Developer looking for meaningful short-term projects, we’d love to hear from you! You’ll be joining us for a specific project, working alongside our in-house team to deliver modern, scalable digital solutions for international clients. This is a great opportunity if you enjoy focused, time-boxed assignments and want to collaborate with a like-minded, fast-moving team. Our core tech stack : TypeScript Next.js React React Native Nest.js Node.js PostgreSQL AWS Docker Key responsibilities: Develop and maintain full-stack web applications using TypeScript and modern frameworks Write clean, efficient, and well-documented code, following industry best practices Collaborate with designers, developers to implement new features and improve existing functionalities Deliver high-quality code within project timelines and communicate clearly with project stakeholders and external clients Identify and fix bugs, optimize application performance, and ensure high reliability and scalability Mentor junior and mid developers Requirements: Min. 5 years of commercial experience in software development Must have an extensive knowledge as well as commercial experience in Typescript, React, Next.js, and Node.js Knowledge of English at min. B2+ level and fluent Polish (C1 or native) Technical university degree within IT field Self motivation, willingness to learn new things and positive attitude to change Good communication and teamwork skills are a must Experience in React Native would be an asset What we offer: A collaborative and supportive work environment Engaging projects that challenge your creativity and technical expertise Macbooks Pro equipment to work on Coworking office space in a vibrant location of Warsaw Recruitment process: HR screening (15-30 minutes) Technical interview: live coding session (1 hour) Decision About us: We are a software house based in Warsaw with over 50 people on board We work in one programming language → JavaScript/TypeScript We have clients from all over the world We are really flexible in working hours The atmosphere within the team is our great value

🏢 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: 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: 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: Long-term B2B contract for an experienced React Native Developer to integrate React Native into an existing native mobile platform within the banking sector. The role focuses on hybrid mobile architecture, combining React Native with iOS and Android applications in a brownfield environment. Work in a hybrid model with involvement in architectural decisions and platform evolution. 🗂️ Requirements: Strong experience with React Native, Experience in native mobile development (iOS or Android), Proven integration of React Native into existing native applications, Ability to design hybrid mobile architecture, Experience with Angular 📃 Skills: ReactNative, iOS, Android, Angular, React 🏢 Description: Industry: banking Rate: up to 160 pln/h net + VAT, B2B Location: Warsaw - hybrid (2 days in the office per week) Long-term cooperation Introduction & Summary We are seeking experienced React Native Developers to assist with a brownfield project focused on integrating React Native into our existing native mobile platform. Main Responsibilities Design and implement solutions that combine React Native with existing native (iOS/Android) applications. Define and drive architectural decisions for hybrid mobile development. Collaborate with teams to ensure smooth integration and optimal performance. Support the evolution of the current mobile platform using a scalable approach. Key Requirements Strong experience with React Native. Solid background in native mobile development (iOS and/or Android). Proven experience in integrating React Native into existing native applications. Strong architectural and problem-solving skills. Experience with Angular. English - minimum B2. Nice to Have Experience with brownfield projects.

🏢 Summary: Long-term B2B contract for an experienced React Native Developer to integrate React Native into an existing native mobile platform in the banking sector. The role focuses on hybrid mobile architecture, combining React Native with iOS and Android applications, and evolving a scalable mobile solution. Hybrid work model with regular onsite presence in Warsaw. 🗂️ Requirements: Strong experience with React Native, Experience in native mobile development (iOS or Android), Proven experience integrating React Native into existing native applications, Experience designing hybrid mobile architectures, Experience with Angular 📃 Skills: React, ReactNative, iOS, Android, Angular, JavaScript, TypeScript 🏢 Description: Industry: banking Rate: up to 160 pln/h net + VAT, B2B Location: Warsaw - hybrid (2 days in the office per week) Long-term cooperation Introduction & Summary We are seeking experienced React Native Developers to assist with a brownfield project focused on integrating React Native into our existing native mobile platform. Main Responsibilities Design and implement solutions that combine React Native with existing native (iOS/Android) applications. Define and drive architectural decisions for hybrid mobile development. Collaborate with teams to ensure smooth integration and optimal performance. Support the evolution of the current mobile platform using a scalable approach. Key Requirements Strong experience with React Native. Solid background in native mobile development (iOS and/or Android). Proven experience in integrating React Native into existing native applications. Strong architectural and problem-solving skills. Experience with Angular. English - minimum B2. Nice to Have Experience with brownfield projects.

🏢 Summary: Senior React Native Developer role focused on delivering end-to-end mobile applications using React Native and Expo, with responsibility for architecture, API integration, and technical leadership. The position involves driving technical decisions, ensuring code quality, and collaborating with clients and teams to build scalable enterprise mobile solutions. 🗂️ Requirements: Advanced English proficiency, Proven experience developing mobile applications with React Native, Practical experience with Expo, Experience integrating REST or GraphQL APIs, Experience in technical leadership or mentoring, Experience with debugging and monitoring tools, Understanding of scalability and code quality principles, Ability to translate business requirements into technical solutions 📃 Skills: React, ReactNative, Expo, REST, GraphQL, CI/CD, Monitoring, Logging, APIs, Mobile 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: We’re seeking a seasoned Senior React Native Developer with strong experience in React Native and Expo, who is ready to step into a technical leadership role on mobile projects. In this position, you’ll be responsible for delivering end-to-end mobile applications, shaping architectural decisions, integrating with existing APIs, and supporting the team in building high-quality solutions. 📈 Your Responsibilities : Build and mantain mobile applications using React Native and Expo Integrate mobile frontends with existing APIs and backend services Partner with internal teams and clients to ensure solutions align with business objectives Drive technical planning, analysis, and execution across development work Support the team through code reviews and knowledge sharing, raising engineering quality Collaborate on delivering scalable, maintainable, and observable enterprise solutions Serve as the primary contact for technical topics within the project 🔑 Key Requirements: Advanced English in speaking and writing (you will be working in an international team) Solid track record of developing mobile apps with React Native Practical experience working with Expo Strong background in integrating with REST and/or GraphQL APIs Experience guiding others or contributing in a mentoring / technical leadership capacity Familiarity with debugging and monitoring tools Good understanding of scalability, maintainability, and overall code quality Ability to work with clients and translate business requirements into technical solutions ➕ Nice to have: Background in building or contributing to enterprise-scale applications Familiarity with setting up or working with mobile CI/CD processes Experience using observability solutions, including logging and monitoring tools 📜 Our Promise (what you can expect from us): 17-22k PLN monthly on B2B contract 100% remote work (but we have offices in Krakow and Warsaw and we’re happy to meet there from time to time 😉) 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌 Recruitment process: 30 minute screening call online with our recruiter 1h technical call with our developer 30 minute conversation with the team leader on client side 30 minute English language check Final 1h technical call Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Senior Full Stack Developer role for an international product team focused on building scalable applications using TypeScript, React, Node.js, PostgreSQL, and Kafka. The contract is remote, B2B, initially for 6 months with possible extension, and includes collaboration in an agile international environment with AI-powered development tools. 🗂️ Requirements: 8+ years of commercial software development experience, Strong TypeScript experience, Experience with React, Experience with Node.js, Experience with NestJS, Knowledge of PostgreSQL, Knowledge of REST APIs, Knowledge of Kafka, Experience building scalable systems, Daily use of AI coding tools, English level B2+/C1 📃 Skills: TypeScript, React, Node.js, NestJS, PostgreSQL, REST, Kafka, Claude, Cursor, Codex, Copilot 🏢 Description: co.brick talents — powered by AI, powered by people. Senior Full Stack Developer (TypeScript / React / Node.js) Location: Remote Contract: B2B Rate: Up to 150–160 PLN/hour Duration: 6 months with a strong possibility of extension Start: ASAP About the project We are looking for an experienced Senior Full Stack Developer to join an international product development team. You will work on building and enhancing scalable software solutions in a modern technology stack, collaborating with experienced engineers in an agile environment. Your responsibilities Design, develop, and maintain scalable full stack applications. Build high-quality backend services and modern frontend solutions. Develop and integrate REST APIs. Work with PostgreSQL and Kafka-based architectures. Collaborate with cross-functional, international teams. Apply AI-powered coding tools to improve development efficiency and code quality. Requirements 8+ years of commercial software development experience. Strong experience with TypeScript on both the frontend and backend. Hands-on experience with React and Node.js/NestJS . Solid knowledge of PostgreSQL , REST APIs , and Kafka . Experience designing and building scalable systems or software products. Daily use of AI coding tools such as Claude Code, Cursor, Codex, GitHub Copilot , or similar ( must have ). Very good English communication skills ( B2+/C1 , must have ). Nice to have Experience building SaaS products. Experience developing on-premise software solutions. Recruitment process The recruitment process includes a technical assignment (approximately 5 hours) . During the task, you are welcome and encouraged to use AI coding tools , as we value modern software development practices.

🏢 Summary: Short-term (4+1 weeks) remote contract for a React Native Developer to build and deliver production-ready mobile features using React Native and Expo. The role focuses on ownership of implementation, clean architecture, and configuring EAS build pipelines for iOS and Android. Start ASAP with high engineering standards and independent work style. 🗂️ Requirements: Strong commercial experience with React Native, Hands-on experience with Expo ecosystem, Very good knowledge of TypeScript, Experience with Expo EAS build and deployment pipelines, Solid understanding of mobile app architecture, Experience with CI/CD pipelines, Ability to write maintainable and scalable code, Strong debugging and problem-solving skills, Experience with Apple and Google in-app payments, Experience integrating RevenueCat, Familiarity with mobile analytics tools, Experience publishing apps to App Store and Google Play 📃 Skills: React, ReactNative, Expo, TypeScript, EAS, CI/CD, RevenueCat, Firebase, iOS, Android, StyleSheet 🏢 Description: About the Role At Blazity we build modern digital products using React.js, Next.js, and API-first architectures for international clients. We focus on delivering clean, scalable, production-grade solutions with strong engineering ownership and high development standards. We are currently looking for a React Native Developer to join a short-term mobile project estimated for 4 weeks, with a possible 1-week extension if needed. The ideal candidate is someone who can take ownership of the implementation, work independently, and deliver high-quality mobile applications using React Native and Expo. Start: ASAP Our Requirements Must-have Technical Skills Strong commercial experience with React Native Hands-on experience with Expo ecosystem Very good knowledge of TypeScript Experience with Expo EAS build and deployment pipelines Solid understanding of mobile app architecture and production-ready development Experience working with CI/CD pipelines Ability to write maintainable, scalable, and well-structured code Strong debugging and problem-solving skills Nice-to-have Experience with Apple / Google in-app payments Experience integrating RevenueCat Familiarity with mobile analytics solutions (e.g. Firebase Analytics) Experience publishing apps to App Store / Google Play Soft Skills Ownership mindset — we are looking for engineers who understand and own their technical decisions Strong communication skills and proactive collaboration Ability to work independently in a fast-paced environment Attention to code quality and maintainability English at a communicative level (B2/C1) Technology Stack React Native (Expo) TypeScript Expo EAS Pipeline React Native StyleSheet useTheme (optional theming support) RevenueCat Apple / Google in-app payments Firebase Analytics (optional) CI/CD pipelines What You Will Do Build and deliver mobile application features using React Native and Expo Maintain high engineering standards and clean architecture Configure and manage EAS build pipelines for iOS and Android Collaborate closely with the team to deliver production-ready features within tight timelines Take ownership of implementation decisions and code quality Support deployment and release processes Project Details Duration: 4 weeks Possible extension: +1 additional week Start date: ASAP Work style: Remote Location: Poland preferred Salary Range B2B: 140-160 PLN net+VAT/h What We Offer Fast-moving, hands-on project environment Fully remote collaboration from Poland Opportunity to work with experienced React and Next.js engineers High ownership and autonomy International projects and modern tech stack