React Native Developer

Job Description:

We are looking for a skilled React Native Developer to design, develop, and maintain high-performance cross-platform mobile applications for Android and iOS.

The ideal candidate must have strong command over React Native, TypeScript/JavaScript, and working knowledge of Kotlin (Android) and Swift (iOS) to build and integrate native modules when needed.

You will work closely with backend, design, and product teams to deliver seamless, fast, and stable mobile experiences for the ZestFindz ecosystem.

Key Responsibilities:

• Develop and maintain cross-platform mobile applications using React Native.
• Collaborate with design and product teams to deliver pixel-perfect, responsive UIs.
• Integrate REST APIs / GraphQL and handle authentication, caching, and error states efficiently.
• Implement and manage app state using Redux / Context API / Zustand.
• Optimize app performance, handle animations, memory leaks, and rendering issues.
• Build and integrate native Android (Kotlin) and iOS (Swift) modules where React Native limitations exist.
• Manage offline storage using SQLite / AsyncStorage / MMKV.
• Configure and manage Firebase services - Auth, Firestore, Push Notifications, Analytics.
• Handle deep linking, in-app navigation, and app lifecycle events.
• Deploy apps to Google Play Store and Apple App Store (with signing, provisioning, versioning).
• Work with DevOps to integrate apps into CI/CD pipelines (Fastlane / GitHub Actions / Codemagic).
• Write clean, modular, reusable code with proper documentation and testing.
• Debug, profile, and optimize performance for low-end devices and weak networks.
• Ensure security best practices - secure token storage, environment management, and data encryption.

Must-Have Skills:

• Strong experience in React Native (0.70+) and JavaScript / TypeScript.
• Solid understanding of mobile architecture patterns (MVC, MVVM, Flux).
• Knowledge of Kotlin (Android) and Swift (iOS) for native bridge creation and debugging.
• Experience with React Navigation, Redux / Context API / Zustand, and API integration (Axios / Fetch).
• Familiarity with Firebase, App Permissions, and Push Notifications (FCM/APNS).
• Good understanding of Android Studio, Xcode, Gradle, and Cocoapods.
• Ability to write clean, testable code with unit and integration tests.
• Working experience with Git / GitHub / GitLab CI/CD.
• Problem-solving mindset and ability to debug across full mobile stack.

Good-to-Have Skills (Bonus):

• Knowledge of native SDK integrations (Maps, Camera, Payments, etc.).
• Experience with React Query / GraphQL.
• Familiarity with Fastlane, Crashlytics, App Center, or Sentry.
• Understanding of UX principles and animation libraries (Lottie, Reanimated).
• Experience with OTA updates (CodePush) and App Store Optimization (ASO).

Flutter JD:

Key Responsibilities: Collaborate with project managers and designers to understand project requirements and translate them into technical specifications.

Develop, test, and maintain Flutter-based mobile applications that are responsive, performant, and reliable.

Write clean, maintainable, and well-documented code.

Troubleshoot and debug application issues, ensuring smooth and efficient performance.

Continuously research and stay up-to-date with the latest trends and best practices in mobile application development.

Collaborate with cross-functional teams to define and implement new features and improvements.

Participate in code reviews and provide constructive feedback to peers.

Ensure the security and data privacy of the applications you develop.

Requirements:

Proven experience as a mobile app developer, with a strong portfolio of Flutter-based applications.

Proficiency in the Dart programming language.

Experience with the Flutter framework and its ecosystem, including state management and third-party libraries.

Knowledge of mobile app architecture patterns (e.g., MVC, MVVM, Redux).

Familiarity with RESTful APIs and integration of third-party services.

Strong problem-solving and debugging skills.

Excellent communication and collaboration skills.

Ability to work both independently and as part of a team.

Knowledge of version control systems (e.g., Git) is a plus.

• Design and Build sophisticated and highly scalable apps using flutter.
• Build custom packages in Flutter using the functionalities and APIs already available in native Android and IOS.
• Translate and Build the designs and Wireframes into high quality responsive UI code.
• Write efficient queries for core Data.
• Explore feasible architectures for implementing new features.
• Resolve any problems existing in the system and suggest and add new features in the complete system.
• Suggest space and time efficient Data Structures.
• Follow the best practices while developing the app and also keeping everything structured and well documented.
• Document the project and code efficiently.
• Manage the code and project on Git in order to keep in sync with other team members and managers.
• Interact with the Product Manager to help understand end-user feedback.
• Ensure security guidelines are always followed while developing the app.
• Suggest new features and/or enhancements.
• Maintain software through product lifecycle including design, development, verification and bug fixes.
• Resolve all the bugs in a timely manner.
• Execute app verification protocol.
• Follow company policies and quality procedures to ensure quality product deliverables.
• If you have experience with Bluetooth Low Energy (BLE) based devices and related applications please highlight the same in your resume

Support the entire application lifecycle (concept, design, test, release and support) on both Android and iOS
- Build a framework as the application grows so our Apps and SDKs are unanimous. 
- Produce fully functional mobile applications writing clean code 
- Gather specific requirements and suggest solutions 
- Troubleshoot and debug to optimise performance 
- Design interfaces to improve user experience 
- Liaise with Product team to plan new features 
- Ensure new and legacy applications meet quality standards 
- Stay up-to-date with new technology trends
- Work with latest Security protocols and data transfer optimisations

- Proven work experience as a Mobile developer with 3 - 5 years of experience. 
- Must be proficient in at least one programming language from Java, Swift & Objective C and must be willing to learn the other two. 
- Experience with third-party libraries and APIs 
- Familiarity with OOP design principles 
- Excellent analytical skills with a good problem-solving attitude 
- Ability to perform in a fast paced team environment
- Strong understanding of in-device security

Preferences:

If you have experience Building apps for fast-growing startups
- If you have hands-on experience on iOS and Android both
- If you have experience working with Flutter.

Note:Our Android application is being written in Java 
and iOS app in Objective C and Swift.

• Health Memberships 
• Sports Subscriptions 
• Entertainment Subscriptions 
• Key Conferences and Event Passes
• Learning Stipend 
• Team Lunches and Parties 
• Travel Reimbursements 
• ESOPs 

Thast what we think would bloom up your personal life, as a gesture for helping us with your talents.

Join us to be a part of our Exciting journey to Build one Digital Identity Platform!!!