React Native

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).

Rippling is looking for a Senior Mobile Engineer (React Native) who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the mobile application. 

You will build and scale multiple areas of our mobile application. To begin with —you will be responsible for building out the new product features in the mobile app and owning the deliverables.

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI designs
• Optimize application for maximum speed and scalability
• Have horizontal leadership - driving initiatives via community sync-ups or work on more "zoomed-out"and more long term projects that will move the needle in the long run.

• 3+ years experience in mobile engineering roles including leadership roles.
• 1+ years of experience in React Native development
• Development expertise in either Android or iOS native platform
• Proficient understanding of JS fundamentals
• Experience working in a fast paced, dynamic environment
• Good interpersonal skills

• Must have at least 1 years experience in front-end development.
• Knowledge of Javascript /React Native / Redux .
• Loves writing code, actively experimenting along with learning new things.
• Passionate about Frontend Development and continually follow the platform & innovations.
• Have an eye for good UI/UX -Proficient with algorithms and data structures. -Keen on problem solving and able to perform in a start-up culture with challenging deadlines

TUBR is working on Innovating Crowd Management on public transport. We are building the state of the art Time series Machine Learning Models to predict the crowds in public transport.

Job Description

We are looking for a React Native developer on a Full time contract basis, who is interested in building performant mobile app on both the iOS and Android platforms aligned with strong Agile Development methodologies. You will be responsible for building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities

- Build pixel-perfect, buttery smooth UIs across both mobile platforms

- Leverage APIs for deep integrations with both platforms.

- Diagnose and fix bugs and performance bottlenecks for performance that feels native

- Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things

- Maintain code and write automated tests to ensure the product is of the highest quality

Skills

- Work as part of a small team to build React Native iOS / Android application

- 2+ years of experience in React Native development.

- Firm grasp of the JavaScript language and its nuances, including ES6+ syntax

- Ability to write well-documented, clean Javascript code

- Rock solid at working with third-party dependencies and debugging dependency conflicts

- Familiarity with native build tools, like XCode, Gradle, Android Studio

- Understanding of REST APIs, the document request model, and offline storage

- Experience with automated testing suites.

- Bachelor’s degree in Computer Science or related fields

- We are looking for a someone who is happy to work in a team or solo but must be confident working independently. (The team will be available to support but pairing won’t always be an option)