React Native Developer

5 дней назад

Дистанційно, Украина IT Craft YSA GmbH Полный рабочий день 120 000 ₴ - 180 000 ₴ в год

We are looking for an experienced React Native Developer to join the team and work on the mobile application of a large-scale crypto exchange.

Founded in 2017, the platform has already built a wide audience and continues to grow. The team is now strengthening its mobile direction to support expansion and deliver new features to users worldwide.

Responsibilities:

  • Develop and maintain a cross-platform mobile application using React Native;
  • Integrate frontend with backend services via REST APIs and WebSockets;
  • Implement and support authentication and authorization flows (JWT tokens, API keys, 2FA, biometric login);
  • Ensure secure storage of sensitive data and validate libraries before integration;
  • Monitor, analyze, and manage application logs to maintain stability;
  • Optimize app performance and improve responsiveness based on user feedback;
  • Participate in release management and contribute to CI/CD pipelines;
  • Handle production incidents, including critical bug fixes and forced updates;
  • Collaborate with the team in an Agile workflow using Git, Jira, and Bitbucket.

Requirements:

  • Minimum 4 years of hands-on commercial development experience, including at least 2 years with React and 2 years with React Native;
  • Strong command of JavaScript and TypeScript;
  • Good understanding of REST APIs, WebSockets, design patterns, as well as mobile-specific features, performance tuning, and app publishing processes;
  • Practical experience with frameworks and libraries such as React Navigation, Redux/MobX, React Query/RTK Query/SWR, Reanimated, Gesture Handler, Victory Native;
  • Confident use of tools like Git, Jira, Bitbucket;
  • Background in working within Agile development practices;
  • English level: Upper-Intermediate or higher.

Will be a plus:

  • Previous experience with native development for Android and/or iOS;
  • Ability to write custom native modules;
  • Familiarity with Angular;
  • Knowledge of Firebase Remote Configs;
  • Understanding of Postgres (at least on the level of integration with backend);
  • Experience running security scans of libraries for vulnerabilities.
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