Mobile App Developer

We are looking for a skilled Mobile Developer to join our engineering team. In this role, you will be responsible for developing and maintaining high-quality cross-platform mobile applications using React Native. You will work closely with our product and design teams to ship features that provide a seamless user experience on both iOS and Android platforms.

Responsibilities

• Develop and Maintain: Build pixel-perfect, buttery-smooth UIs across both mobile platforms (iOS and Android) using React Native.
• Integrate APIs: Connect mobile applications with backend services and third-party APIs (RESTful or GraphQL).
• State Management: Implement clean and efficient state management (e. g., Redux, Context API, Zustand, or MobX).
• Debug and Optimize: Diagnose and fix bugs and performance bottlenecks to ensure applications run natively in terms of performance and feel.
• Collaborate: Work with backend developers, designers, and product managers to define, design, and ship new features.
• Code Quality: Write clean, documented, and maintainable JavaScript/TypeScript code.
  
  

Requirements

• Experience: 1-3 years of professional experience in mobile app development.
• Core Tech: Strong proficiency in React Native and the React ecosystem.
• Language Skills: Solid understanding of JavaScript (ES6+) and TypeScript.
• UI/UX: Experience with styling (Styled Components, Tailwind, or StyleSheet) and handling responsive layouts.
• Navigation: Familiarity with React Navigation (v5/v6) or React Native Navigation.
• Version Control: Proficient with Git and collaborative workflows (PRs, code reviews).
• Problem Solving: Ability to understand business requirements and translate them into technical requirements.
  
  

Nice-to-Haves (Bonus Skills)

• Experience with Expo or bare React Native CLI workflows.
• Basic understanding of native development (Swift/Objective-C for iOS, Kotlin/Java for Android) to link native libraries.
• Experience publishing apps to the Google Play Store and Apple App Store.
• Familiarity with Firebase (Analytics, Crashlytics, Notifications).
• Knowledge of CI/CD pipelines for mobile (e. g., Fastlane, Bitrise, GitHub Actions).
  
  

Advanced State Management And Data Fetching

• Redux Toolkit (RTK): The modern standard for Redux logic (replaces older vanilla Redux).
• React Query (TanStack Query): Highly desirable for managing server state, caching, and data synchronization.
• Zustand: A lightweight, modern alternative to Redux that is gaining popularity.
  
  

UI, Animations, And Performance

• Reanimated 2/3 The industry standard for high-performance animations (running on the UI thread).
• Lottie: Implementing complex vector animations.
• React Native Gesture Handler: Handling complex gestures (swipes, pans, and pinches) smoothly.
• Performance Optimization: Understanding useMemo, useCallback, and React.memo to prevent re-renders, and optimizing FlatList for large data sets.
• Hermes Engine: Experience enabling and debugging with the Hermes engine for faster app startup.
  
  

Native Knowledge And Tools

• Native Linking: Ability to modify Podfile (iOS) and build.gradle / AndroidManifest.xml (Android) to configure third-party libraries.
• Xcode and Android Studio: Basic familiarity with these IDEs to build, archive, and debug native crashes.
• Permissions: Handling camera, location, and notification permissions on both OSs.
  
  

Testing And DevOps

• Testing: Writing unit tests with Jest and component tests with React Native Testing Library.
• CI/CD and Automation: Experience with Fastlane to automate screenshots and store deployments.
• CodePush: Updating the app over-the-air (OTA) without going through the App Store review process.
• Crash Reporting: Experience with Sentry or Firebase Crashlytics.
  
  

Technical Requirements (Must-Haves)

• Proficiency in React Native (0.70+) and TypeScript.
• Strong understanding of React Hooks (useEffect, useCallback, useContext).
• Experience with state management libraries (preferably Redux Toolkit or Zustand).
• Experience integrating REST APIs using Axios or React Query.
• Deep understanding of Flexbox for building responsive layouts across different screen sizes.
• Familiarity with React Navigation (Stack, Tab, and Drawer navigators).
• Ability to debug using React Native Debugger or Flipper.
  
  

Preferred Skills (Big Plus)

• Experience with Reanimated for 60 fps animations.
• Basic knowledge of Swift/Kotlin to bridge native modules when necessary.
• Experience writing tests using Jest and React Native Testing Library.
• Familiarity with CI/CD pipelines (e. g., GitHub Actions, Bitrise, or Fastlane).
• Experience with Firebase (Auth, Analytics, Firestore).
• Knowledge of OTA updates using CodePush.
  
  

This job was posted by Divya Dharshini R from Fyn.