Mobile Senior Engineer

Key Responsibilities

• Develop and maintain performant, scalable mobile apps using React Native and TypeScript Translate UI/UX designs into pixel-perfect, responsive interfaces Architect reusable components, modules, and state management solutions Integrate REST/GraphQL APIs, WebSockets, and third-party SDKs Write native bridge modules (Swift/Objective-C, Kotlin/Java) when required Optimize app performance (startup time, memory, rendering, bundle size) Own release cycles: builds, code signing, App Store and Play Store submissions Write unit, integration, and E2E tests; maintain CI/CD pipelines Conduct code reviews, mentor team members, and uphold coding standards Collaborate with product, design, backend, and QA teams in an Agile setup Required Skills 5 to 8 years of mobile development experience, with 3+ years in React Native Strong command of JavaScript (ES6+) and TypeScript Deep knowledge of React fundamentals: hooks, context, lifecycle, and rendering behavior State management: Redux Toolkit, Zustand, MobX, or React Query Navigation: React Navigation or Expo Router Experience with the New Architecture (Fabric, TurboModules, JSI) and the Hermes engine Solid understanding of native iOS/Android fundamentals and platform guidelines Experience with REST APIs, GraphQL, authentication (OAuth, JWT), and secure storage Push notifications (FCM/APNs), deep linking, in-app purchases, and offline-first/local storage (SQLite, MMKV, Realm, WatermelonDB) Testing: Jest, React Native Testing Library, Detox or Maestro Git, CI/CD (GitHub Actions, Bitrise, Fastlane, or App Center), and Agile/Scrum Published apps on the App Store and Google Play Good to Have Expo (managed and bare workflows) and EAS Build/Update Native development experience in Swift/SwiftUI or Kotlin/Jetpack Compose Firebase (Analytics, Crashlytics, Remote Config) and monitoring tools such as Sentry Experience with animations (Reanimated, Skia) and gesture handling Accessibility, localization, and app security best practices (SSL pinning, obfuscation) Experience with micro-frontends or monorepos (Nx, Turborepo) Exposure to mobile analytics, A/B testing, and feature flagging Prior experience leading or mentoring a small team Qualifications: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience) Soft Skills Strong problem-solving and debugging ability Clear communication and ownership mindset Ability to work independently and make sound technical decisions Perks and Benefits for Irisians Iris provides world-class benefits for a personalized employee experience. These benefits are designed to support financial, health and well-being needs of Irisians for a holistic professional and personal growth. Click here to view the benefits.