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).

SKILLS :

● Strong proficiency in Android development, including Java programming and Android SDK integration.

● Experience with Manifest declarations and handling permissions in Android applications.

● Familiarity with creating custom plugin interfaces to access native features.

● Understanding of anti-reverse engineering techniques and their implementation.

● Knowledge of device identification methods for whitelisting purposes.

● Ability to troubleshoot and resolve storage-related issues on Android SDK version 30 and above.

● Experience with integrating browser interactions and passing data to the backend.

● Proficiency in crash issue handling and debugging for different target SDKs.

● Familiarity with native information access and data collection for analytics purposes.

● Strong problem-solving skills and the ability to resolve library conflicts.

● Someone who loves coding & playing games

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.

• Own Android SDKs, working hand-in-hand with the founding team
• Design and build delightful user interfaces for native apps on Android
• You will be (co-) responsible for our software development kit (SDK) for Android
• Building mobile apps in both Swift and Kotlin.
• You work independently on your own code, but you also spend time collaborating with others.
• You are involved in all stages of app development and contribute to the roadmap.
• You get the freedom to experiment with new Android technology.
• Ownership — advocate for projects and solutions that need to be launched ground up.

• Min 2 to 4 years in developing Android applications in Java / Kotlin / C++ /
• Gradle/Groovy.
• Worked on SDKs/Frameworks.
• Strong understanding of software design patterns as well as Android specifics.
• Experience with authenticated sessions using authentication tokens and have at-least
• fundamental knowledge of app security.
• Good to have:-
• Experience with Cross-platform frameworks is a plus (React Native, Flutter, Cordova,
• Xamarin).
• Have implemented security standards and guides.
• Experience building applications at scale.
• Experience with third-party libraries and APIs like Mobile Vision, MLKit and/or
• Camera API.
• Good understanding of garbage collection, design patterns and continuously
• discover, evaluate, and implement new technologies to maximise development
• efficiency.
• Unit-test code for robustness, including edge cases, usability, and general
• reliability

Job Description:

We are looking for an iOS developer responsible for the development and maintenance of applications aimed at a range of iOS devices including mobile phones and tablet computers.

Your primary focus will be the development of iOS applications and their integration with back-end services.

You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products are essential.

Responsibilities:

Design and build applications for the iOS platform

Ensure the performance, quality, and responsiveness of applications

Collaborate with a team to define, design, and ship new features

Identify and correct bottlenecks and fix bugs

Help maintain code quality, organization, and automatization

Skills:

Proficient with Objective-C or Swift (depending on project requirements), and Cocoa Touch

Experience with iOS frameworks such as Core Data, Core Animation, etc.

Experience with offline storage, threading, and performance tuning

Familiarity with RESTful APIs to connect iOS applications to back-end services

Knowledge of other web technologies and UI/UX standards

Understanding of Apple's design principles and interface guidelines

Knowledge of low-level C-based libraries is preferred

Experience with performance and memory tuning with tools (such as Instruments and Shark, depending on project needs)

Familiarity with cloud message APIs and push notifications

A knack for benchmarking and optimization

Proficient understanding of code versioning tools (such as Git, Mercurial or SVN)

Familiarity with continuous integration

Make sure to mention any frameworks, libraries, or any other technology relevant to your project

Y Media Labs is a creative technology company that helps brands re-imagine their customer  experiences. Our mission is to export the Silicon Valley mindset to the rest of the world.  

We create digital products with purpose that have a lasting impact on users' lives and clients'  businesses. We are a team of dreamers and doers united by a simple idea: If we make a  difference for your customers, we will make a difference for your business too. And it works.  Since 2009, we have led early-stage startups and top-tier brands to "wow" their customers  with best-in-class digital products and experiences. The Wall Street Journal calls us “YML is  one of the most innovative companies in Silicon Valley.”  

Through next-generation technologies and world-class design, we help brands like Apple,  PayPal, L'Oreal, Home Depot, Kaiser Permanente, State Farm, First Republic Bank develop  solutions that drive major business outcomes. Founded in 2009, Y Media Labs is  headquartered in Silicon Valley with four offices worldwide including Atlanta, Indianapolis,  Bangalore & Sao Paulo.  

We came of age with the invention of the app store. We have mobile in our DNA. We create  solutions across the digital ecosystem. Unlike agencies who are born desktop, we are deeply  connected to how consumer perception has shifted thanks to the mobile lifestyle. We have  

built and launched 207 products, delighted over 407 million users, built over 200+ apps, work  with 30 Fortune 500 clients, been responsible for over 400 billion transactions through our  work and generated over $200 billion in transactions for our clients, and been featured on the  app store over 700+ times!  

• Portfolio of our work can be found @ ymedialabs.com/work  
• Live look into our engineering team @ medium.com/ymedialabs-innovation  • Live look into our design team @ dribbble.com/ymedialabs  

Our team in Bangalore is close to 250 strong, and we are growing in a variety of ways. Our  goals include a culture of excellence and we are looking to transform the team to be one of  the best tech teams in Bangalore.  

We are looking to hire Engineering Manager for our team in Bangalore. If you are excited about building products that will be used by millions of consumers worldwide, building products for brands that you can be proud to show to your family and friends - you need to join us!

Responsibilities:

• Lead and coach a group of engineers in delivering scalable, flexible and secure features to our customers
• Leading engineering teams composed of backend, frontend, iOS, Android developers and QA.
• Deep dive into work of your team, review the code submitted by your team, and resolve the root cause of problems
• Coach your team members how to increase the quality of their code based on real examples
• Involve in hiring for your teams
• Drive a continuous improvement process - introduce new tools & automations based on real data analysis
• Represent the team to engineering groups internally, to executive leaders in various functional groups within YML, to current and future customers, and to our partner organizations.
• Build a diverse team while fostering a collaborative and inclusive environment.
• Project and Program management
• Collaborate with Product/Project Managers to plan, implement and deliver tasks and modules on a timely basis with best practices and adherence to SOPs.
• Manage the development pipeline to deliver features on schedule while maintaining high bar for quality.
• Closely Interact with other functions such as PM/Product, Design, UI/UX, Architecture, QA, and deliver planned features
• Deliver Web, Android and iOS applications with integration to backend services deployed on the cloud with high quality and responsiveness.
• Create strong practices around test driven development, automating delivery of apps to the marketplace with strong CI/CD practices.
• Play the role of an unblocker in a tight scrum environment.
• Should be able to help other developers with challenges, problem solving, and help achieve milestones as per plan.
• Prioritize to manage ad-hoc requests in parallel with ongoing projects.
• Hands on with programming with 50%+ of bandwidth going into modules owned.

Requirements:

• A highly talented developer with 10+ years of hands-on experience.
• Primarily in web application development experience using, JAVA, Angular, ReactJS, Python, GO.
• Working with MVVM, MVP, MVC patterns.
• Additional Mobile development experience Android, Kotlin, iOS, Swift, Objective C will be a bonus.
• Must have at least 3+ years of experience in an engineering management role, and a clear record of success prior to that as a senior/staff engineer.
• Must be compelling and clear communicator, able to represent your team to internal and external audiences with differing levels of technical fluency.
• Ability to handle multiple competing priorities/projects in a fast-paced environment.
• Good Analytical, Problem solving and Debugging skills.
• Hands on experience in Designing, Coding and release management.
• Continuously increasing your team's work quality & performance.
• Experience with writing and maintaining unit-tests, functional tests, and CI/CD pipelines.
• Ability to think from a product mindset.
• B. Tech/M. Tech/MCA (IT/Computer Science).

Nice to Have:

• Hands-on cloud development experience