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Mobile Developer (React Native)
Build and improve the core mobile app experience with a strong focus on performance, usability, and reliability, while collaborating closely with backend and product teams to deliver a mobile-first user experience.
MobileReact NativeExpoNode.js
About the role
Koolny is a startup fighting food waste through a smart mobile application with real environmental impact.
Your work will power discovery, checkout, and pickup flows across the Koolny app.
You will build and improve the Koolny mobile app used by real users.
We value performance, clean architecture, and mobile-first UX.
You will collaborate closely with backend and product teamsto build delightful experiences.
Responsibilities
- Develop mobile features using React Native and Expo.
- Actively contribute and partner with backend to deliver seamless APIs.
- Improve app performance, stability, and user experience.
- Maintain component libraries and CI workflows.
- Participate in testing and quality assurance workflows.
- Support mobile builds and deployment tools.
Requirements
- Basic experience with JavaScript and React.
- Interest in mobile development and UX.
- Ability to write clean, maintainable code.
- Use AI tools to boost productivity (ChatGPT, Copilot, etc.).
- Comfortable working in a remote team.
Nice to have
- Personal or academic React Native projects.
- Basic knowledge of testing or CI/CD.
- Interest in performance optimization.
- Interest in startup environments.