Senior React Native Developer
Solliciteren
Plaats
Brussel1000
Brussel
België
Contract
Vooltijds, Onbepaalde duurDatum gepubliceerd
2026-02-17Online to:
2026-04-18EUR 15.00 HOUR
Senior React Native Developer
- One Tech Solutions BV
- Brussel
- 3 dagen geleden
Company Description
OneTech Solutions, founded in 2023, is a leading IT consulting and professional solutions firm serving major companies across Europe. Specializing in technology consulting, engineering, and staff augmentation, we strive to provide innovative and cost-effective solutions. Our team of skilled engineers is continuously trained in cutting-edge technologies like AWS, Azure, GCP, and tools like Jenkins, Docker, and GitHub. With expertise in programming languages such as Java, Python, C#, and many more, we are trusted by public and private sector clients to help them achieve their business objectives.
Your Responsibilities
You will support the design and development of high-quality mobile applications following best practices to ensure high availability, scalability, and resilience.
You will write both unit and integration tests and develop automation tools for daily tasks.
You will work closely with backend developers to design and develop functional, performant applications.
You will collaborate with cross-functional teams to identify and prioritize product features.
You will troubleshoot and debug applications to ensure high uptime and good performance.
You will challenge ideas and opinions to avoid pitfalls and inefficient complex solutions.
You will create and maintain technical documentation for all code changes and updates.
You will stay up to date with emerging trends and technologies and suggest new approaches to improve efficiency and productivity.
You will lead, support, and coach more junior developers in the team.
You will take the lead in code reviews to maintain code quality and identify opportunities for improvement.
You will work closely with the Centre of Excellence for React Native architecture to identify and propose efficiencies using AI or future technologies
Your Profile
You have bachelor's degree in computer science, Software Engineering, or a related field.
You have 6+ years of commercial experience with React Native, including navigation, animations (Reanimated), and performance optimization.
You have experience with native modules & bridging (Swift/Obj-C, Kotlin/Java, RN Architecture).
You have strong knowledge of mobile integrations (camera, biometrics, push notifications, secure storage).
You are familiar with debugging tools (Xcode, Android Studio, RN DevTools, Reactotron) and release processes (App Store & Play Store).
You have OTA updates experience (CodePush, Expo Updates).
You have solid testing skills (Jest, Detox,).
You have strong JavaScript/TypeScript skills.
You understand ReactJS fundamentals (Hooks, Context API) for shared codebases.
You can integrate APIs (REST, GraphQL).
Redux + Redux thunk, Redux-Observables, Zustand, Recoil, Jotai, MobX.
Experience with API integration (REST, GraphQL, WebSockets).
Strong e2e testing experience (Appium or another framework).
Strong experience with RxJS.
You have good communication skills and speak English confidently.
You show commitment, a positive attitude, and openness to learning and growth.
You are a strong problem-solver who can work both independently and collaboratively.
Nice-to-have: Strong experience with Angular 10+, familiarity with CI/CD tools, Expo, GraphQL/Apollo, performance optimization, and experience with large-scale migrations.
OneTech Solutions, founded in 2023, is a leading IT consulting and professional solutions firm serving major companies across Europe. Specializing in technology consulting, engineering, and staff augmentation, we strive to provide innovative and cost-effective solutions. Our team of skilled engineers is continuously trained in cutting-edge technologies like AWS, Azure, GCP, and tools like Jenkins, Docker, and GitHub. With expertise in programming languages such as Java, Python, C#, and many more, we are trusted by public and private sector clients to help them achieve their business objectives.
Your Responsibilities
You will support the design and development of high-quality mobile applications following best practices to ensure high availability, scalability, and resilience.
You will write both unit and integration tests and develop automation tools for daily tasks.
You will work closely with backend developers to design and develop functional, performant applications.
You will collaborate with cross-functional teams to identify and prioritize product features.
You will troubleshoot and debug applications to ensure high uptime and good performance.
You will challenge ideas and opinions to avoid pitfalls and inefficient complex solutions.
You will create and maintain technical documentation for all code changes and updates.
You will stay up to date with emerging trends and technologies and suggest new approaches to improve efficiency and productivity.
You will lead, support, and coach more junior developers in the team.
You will take the lead in code reviews to maintain code quality and identify opportunities for improvement.
You will work closely with the Centre of Excellence for React Native architecture to identify and propose efficiencies using AI or future technologies
Your Profile
You have bachelor's degree in computer science, Software Engineering, or a related field.
You have 6+ years of commercial experience with React Native, including navigation, animations (Reanimated), and performance optimization.
You have experience with native modules & bridging (Swift/Obj-C, Kotlin/Java, RN Architecture).
You have strong knowledge of mobile integrations (camera, biometrics, push notifications, secure storage).
You are familiar with debugging tools (Xcode, Android Studio, RN DevTools, Reactotron) and release processes (App Store & Play Store).
You have OTA updates experience (CodePush, Expo Updates).
You have solid testing skills (Jest, Detox,).
You have strong JavaScript/TypeScript skills.
You understand ReactJS fundamentals (Hooks, Context API) for shared codebases.
You can integrate APIs (REST, GraphQL).
Redux + Redux thunk, Redux-Observables, Zustand, Recoil, Jotai, MobX.
Experience with API integration (REST, GraphQL, WebSockets).
Strong e2e testing experience (Appium or another framework).
Strong experience with RxJS.
You have good communication skills and speak English confidently.
You show commitment, a positive attitude, and openness to learning and growth.
You are a strong problem-solver who can work both independently and collaboratively.
Nice-to-have: Strong experience with Angular 10+, familiarity with CI/CD tools, Expo, GraphQL/Apollo, performance optimization, and experience with large-scale migrations.