Senior 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).

• Proficiency with React Native.
• Experience and Understanding of ES6 & JavaScript Concepts.
• Experience with React.js and Redux.
• Familiarity with native build tools, like XCode, Gradle Android Studio, IntelliJ
• Hands-on experience on Android, iOS platforms in creating Hybrid / Native applications.
• Has prior experience in creating bridging modules for React Native
• Understanding of the basic concepts of Android and iOS like Services, Background App Refresh, offline compatibility etc
• Hands on experience in Application Design and Development on React Native platform.
• Require knowledge of Version Control GIT.
• Understanding of Unit Testing, Debugging Methodology used in React Native Apps

• Team Members Handling Experience
• Perform checks on correct functionality of the app
• Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Knowledge of React and the Javascript ecosystem
• Exposure to building ReactNative components in native iOS.
• Knowledge of Beacons and IOT will be value addition.

• 5 Days Working
• Competitive Salary.
• Knowledge-Based Hierarchy 
• Trending Technology Development
• Career Development Programs.
• Tremendous Scope of Responsibilities and KPIs Aligned with Individual and Organisational Goals.
• Exposure to working with a team size of 50+.
• Good Project Incentives and Rewards.
• Monthly Rewards and Recognition Program- Star Performer of the Month.
• Work-Life Balance.
• Fantastic Team Spirit with Creative, Fun and Open Office Work Culture.

• Support the entire application lifecycle (concept, design, test, release and support)
• Produce fully functional mobile applications writing clean code of for React Native Platform.
• Gather specific requirements and suggest solutions.
• Troubleshoot and debug to optimize performance.
• Design interfaces to improve user experience.
• Liaise with the development team to plan new features.
• Ensure new and legacy applications meet quality standards.
• Research and suggest new mobile products, applications and protocols.
• Stay up-to-date with mobile new technology trends.

Essential Duties and Responsibilities: 

• Build pixel-perfect, UIs across both mobile platforms. 
• Design,develop, secure high performing mobile applications using React Native for both Android & IOS .
• Translate designs & wireframes into a high-quality code & Mobile UI .
• Leverage native APIs for deep integrations with both platforms. 
• Diagnose, fix bugs & performance bottlenecks for performance that feels native. 
•  Maintain code and execute UTC to ensure the product is of the highest quality. 
• Participate in the development and preparation of documentation. 

Skills 

• Must have exp in react native (must) and native Apps too.
• Team Player
• Familiarity with UTC , code versioning and CI/CD tools like Git, SVM, Jenkins.
• Proven development experience on smartphone platforms.
• Hands-on experience on React Native Framework, including React JS, React Native, and JavaScript.
• Extensive programming experience with at least one programming language such as Swift, Java, JavaScript.
• Deep familiarity with iOS or Android development.
• Familiarity with RESTful APIs
• Familiarity with code versioning and CI/CD tools like Git, SVM, Jenkins.
• Must have worked on at least one app that is published in AppStores.

Bonus:

• Experience in Objective-C, Swift, and Cocoa Touch.
• Good Knowledge of HTML5, CSS.
• Extensive experience with iOS Frameworks such as Core Data and Core Animation.
• Knowledge of Apple’s design principles and application interface guidelines.
• Mandate Experience on Google Play console and Native build tools like XCode and Android Studio. 
• Strong understanding of SDLC and Agile development methodology.
• Basic understanding of Accessibility.

Designation: Sr. Software Engineer – React Native

Work Location: Chennai/Bangalore

Experience: 

• 4 - 8 years of experience in development with minimum 2 years in react native.

Description:

• Should have min 2+ years of Hands-on experience in React Native development.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux
• Experience with JavaScript, Typescript, CSS, HTML5 and front-end languages.
• Good understanding of Android/ iOS design guidelines, SDK.
• Exposure to building React Native components in native iOS and Android.
• Solve complex technical, scalability or performance challenges.
• Familiarity with code versioning tools such as Git, SVN, Gitlab.

Educational Requirements:

B.E/B.Tech (CS/IT/ECE), MSc (CS), MCA

• Apply knowledge of Javascript (ES6) including all the latest features
• Usage of third party libraries for Maps, UI scaling, Styles, Secure storage, Permissions, Navigation, Splash screen, Network. Analytics. Push notifications, Localization, Calendar, etc.
• Build and run apps using Xcode, and Android Studio
• Persistence support using frameworks like Realm
• Comprehend performance issues and solve them
• Knowledge of Git (including merging, branching and resolving merge conflicts)

• Ability to create flexbox driven UI layout
• Configuring ESLint for JS code linting
• Being aware of alternate state management mechanisms like MobX
• Is proficient in either iOS or Android programming too.

• Knowledge of all aspects of React framework
• Components, containers, JSX specification of component UI layout, Component lifecycle
• Props and State mechanism used for data flow
• Various kinds of views (text, button, scroll view, flat list, etc.)
• Navigation
• RN animations and gesture system fundamentals
• Redux state management library
• React Router usage
• JSON/XML parsing

React Native Developers

• l React Native
• l Redux and State Management
• l Experience with OIDC/OAUTH2
• l Git and Git Flow Processes
• l JavaScript (ES6 and ES.next)
• l Unit Testing (Jest, Jasmine or similar frameworks)
• l Server Side Programming (NodeJS, Express)
• l OpenAPI Spec

• Responsible for design, develop, and implement new ideas and products from scratch.
• You will be interfacing with the server-side engineering team to scale out our apps across thousands of users.
• You will be involved in all aspects of development playing a critical role in the design, planning, development, and submission of our iOS apps.
• Manage and deliver across the entire app life cycle, design, build, deploy, test, release to app stores, and support.
• Working directly with developers and product managers to conceptualize, build, test, and realize products/features.
• Optimizing performance for the app and keeping it up to date with the latest industry standards.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

QUALIFICATION:

• Good understanding of Swift, Cocoa framework, Core Data, AutoLayout, UIKit, Xcode & iOS applications.
• Proven hands on experience working with table views, scroll views, delegates, notifications, NS operations, GCD.
• Extensive mobile development experience with iOS Proficiency in Swift.
• More than one application developed end to end for iPhone.
• Experience in writing unit and functional tests.
• Experience in usage of Instruments to detect memory leaks and for performance optimisation.
• Solid understanding of memory management with and without ARC.
• Knowledge of iOS networking and Multithreading.
• Strong sense of good Application UI Design.
• In depth understanding of Apple recommended guidelines and best practices for coding.
• Knowledge of software development best practices including continuous integration, development of high quality code, reusable toolkits and libraries.
• Understanding of prevailing architecture/technology concept.
• Knowledge about Git.
• Able to fit in well within an informal environment.
• High energy level and untiring commitment to drive oneself & the team towards goals.