What You Will Do

• Build & Ship: Build, ship, and maintain cross-platform mobile features for iOS and Android using React Native.
• End-to-End Ownership: Own features from discovery and technical design through implementation, testing, release, and monitoring.
• Architectural Integrity: Implement clean, testable architecture and maintain high code quality through rigorous reviews and documentation.
• Data & APIs: Integrate with GraphQL APIs and handle data persistence, offline caching, deep links, and background tasks.
• Quality Assurance: Write automated tests (unit, integration, UI) and contribute to CI/CD pipelines and release processes.
• Platform Support: Support App Store and Google Play submissions, manage release notes, and rollout strategies.

What We Can Expect from You

• Mobile Expertise: Professional experience building and shipping production mobile apps with React Native.
• Technical Mastery: Expert understanding of JavaScript, TypeScript, and modern CSS (ideally Tailwind).
• Integration Skills: Strong experience with GraphQL, WebSockets, and mobile data persistence (e.g., SQLite, Realm).
• DevOps Knowledge: Familiarity with release tooling and app store processes (App Store Connect, Google Play Console, Firebase, GitHub Actions).
• Security Mindset: Knowledge of secure storage and mobile security practices (OWASP MASVS).
• Language: Fluency in either English or Japanese, with at least conversational proficiency in the other.

Bonus Points

• Meaningful experience with functional backend languages like Elixir or Ruby on Rails.
• Experience with AWS Services, Firebase, and Postgres database development

Are you interested in this position? Apply by clicking on the “Apply Now” button below!

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