Senior Mobile Engineer

Responsibilities:

• Build a new mobile app from scratch on a modern, scalable architecture using React Native, while analysing the existing legacy app to ensure functional parity for current users.
• Take full ownership of technology selection, critical architectural decisions, and driving continuous improvement of the codebase.
• Lead the full lifecycle from UX discussions and technical design to implementation, testing, and production rollout.
• Own the mobile CI/CD pipelines (Fastlane, GitHub Actions) and manage the entire app store submission process for both iOS and Android.
• Ensure a crash-free session rate of 99.5% and ANR within industry norms through robust observability and crash reporting (Sentry/Firebase).

Requirements:

• 5+ years of professional experience in mobile application development.
• Deep production experience with React Native, with the ability to drop into Native iOS (Swift) or Android (Kotlin) for bridge modules, background tasks, and OS-level performance issues.
• Strong understanding of modern architecture patterns like MVVM, MVP, and Declarative UI.
• Proven experience building mobile applications from scratch on modern stacks, with the ability to analyse and interpret legacy codebases to ensure functional parity.
• Experience building automated testing suites (Unit, Integration, and E2E) to ensure production-ready code.
• Expert knowledge of CI/CD for mobile, including Fastlane, code signing, provisioning, and managing automated releases to the App Store and Play Store.

Technology Stack:

• Mobile: React Native, TypeScript.
• Native: Swift (iOS), Kotlin (Android).
• Infrastructure & Ops: Monorepo, GitHub Actions, Fastlane.
• Testing & Monitoring: Vitest/Jest, Detox/Appium, Sentry, Firebase.