React Native Engineer
Job Summary
Job Description
Develop and maintain high-performance React Native applications for iOS and Android. Configure and manage bare React Native projects (without Expo), integrating native modules using JSI & Bridge. Build reusable UI components, leveraging native code and CSS/SCSS. Implement features like push notifications, in-app purchases, and OAuth 2.0 authentication. Integrate and optimize third-party native modules. Manage iOS and Android environments using Xcode and Android Studio. Identify and resolve performance bottlenecks. Implement unit and end-to-end testing using Detox and Jest. Work with QA to diagnose and fix issues. The role requires expertise in bare React Native projects, Native Module integration (JSI & Bridge), Xcode, Android Studio, React 16.0+, and testing frameworks.
Must have:
- Bare React Native (no Expo)
- Native Module Integration (JSI/Bridge)
- Xcode & Android Studio expertise
- React 16.0+ & Hooks
- In-App Purchases, Push Notifications, OAuth 2.0
- Redux, react-redux, Reanimated 2.0+
- Detox & Jest testing
- Performance optimization
Good to have:
- Detox & Unit testing
- react-native-gesture-handler
- Analytics (AppsFlyer, Mixpanel, Google Analytics)
- react-native-webview, react-native-config, react-native-mmkv
- dayjs
Perks:
- Competitive compensation
- Professional development
- Creative work environment
12 skills required
Job Details
Fliff unpacks sports gaming into a social, free-to-play experience designed for all types of sports fans. We've built an engaging platform where users can compete for leaderboard positions, earn badges, and build their status within the game.
We are pioneering play-for-fun sports gaming, offering a social sportsbook experience that features sweepstakes promotions and loyalty rewards. Our platform provides sports fans with fun, engaging, and free-to-play alternatives to traditional real-money gaming.
What You’ll Do
Develop and maintain high-performance React Native applications, ensuring smooth functionality across both iOS and Android platforms.
Configure and manage bare React Native projects (without Expo), integrating native modules using JSI & Bridge where necessary.
Build reusable and responsive mobile UI components, leveraging native code and styling with CSS/SCSS.
Implement key mobile features such as push notifications, in-app purchases, and OAuth 2.0 authentication.
Native Module Integration
Integrate and optimize third-party native modules, ensuring seamless communication between JavaScript and native code.
Manage iOS and Android environments using Xcode and Android Studio, handling build processes and deployments via TestFlight and Google Internal Release.
Configure and maintain iOS schemes and Android build variants to support multiple environments efficiently.
Performance Optimization
Identify and resolve performance bottlenecks in both JavaScript and native code using debugging tools like React Native Debugger, Xcode, and Android Studio.
Ensure smooth animations and interactions with Reanimated 2.0+ while managing application state effectively using Redux and react-redux.
Testing & QA
Implement unit and end-to-end testing using Detox and Jest to maintain code quality and stability.
Work closely with QA teams to diagnose and fix issues in live applications, ensuring a seamless user experience.
What We’re Looking For
Experience & Skills
Proven experience working with bare React Native projects (without Expo).
Strong expertise in Native Module integration, JSI & Bridge, and debugging across both native and JavaScript layers.
Deep understanding of Xcode and Android Studio, including iOS schemes and Android build variants.
Experience with app signing and deployment to TestFlight and Google Internal Release.
Advanced knowledge of React 16.0+, including hooks, class components, and React Navigation 5.0+.
Familiarity with implementing In-App Purchases, Push Notifications, OAuth 2.0, and Reanimated 2.0+.
Previous experience in iGaming or online gambling is a plus.
Nice to Have
Experience with end-to-end testing using Detox and unit testing frameworks.
Knowledge of gesture handling with react-native-gesture-handler.
Experience integrating analytics tools such as AppsFlyer, Mixpanel, or Google Analytics.
Familiarity with libraries like react-native-webview, react-native-config, and react-native-mmkv.
Proficiency with utilities like dayjs for date and time manipulation.
Why This Role?
Dynamic Industry: Be part of the fast-growing sports gaming sector, delivering engaging mobile experiences to millions.
Global Team: Work with a talented, multinational team across key global locations.
Growth & Perks: Enjoy competitive compensation, professional development opportunities, and a creative work environment.
What You’ll Do
Develop and maintain high-performance React Native applications, ensuring smooth functionality across both iOS and Android platforms.
Configure and manage bare React Native projects (without Expo), integrating native modules using JSI & Bridge where necessary.
Build reusable and responsive mobile UI components, leveraging native code and styling with CSS/SCSS.
Implement key mobile features such as push notifications, in-app purchases, and OAuth 2.0 authentication.
Native Module Integration
Integrate and optimize third-party native modules, ensuring seamless communication between JavaScript and native code.
Manage iOS and Android environments using Xcode and Android Studio, handling build processes and deployments via TestFlight and Google Internal Release.
Configure and maintain iOS schemes and Android build variants to support multiple environments efficiently.
Performance Optimization
Identify and resolve performance bottlenecks in both JavaScript and native code using debugging tools like React Native Debugger, Xcode, and Android Studio.
Ensure smooth animations and interactions with Reanimated 2.0+ while managing application state effectively using Redux and react-redux.
Testing & QA
Implement unit and end-to-end testing using Detox and Jest to maintain code quality and stability.
Work closely with QA teams to diagnose and fix issues in live applications, ensuring a seamless user experience.
What We’re Looking For
Experience & Skills
Proven experience working with bare React Native projects (without Expo).
Strong expertise in Native Module integration, JSI & Bridge, and debugging across both native and JavaScript layers.
Deep understanding of Xcode and Android Studio, including iOS schemes and Android build variants.
Experience with app signing and deployment to TestFlight and Google Internal Release.
Advanced knowledge of React 16.0+, including hooks, class components, and React Navigation 5.0+.
Familiarity with implementing In-App Purchases, Push Notifications, OAuth 2.0, and Reanimated 2.0+.
Previous experience in iGaming or online gambling is a plus.
Nice to Have
Experience with end-to-end testing using Detox and unit testing frameworks.
Knowledge of gesture handling with react-native-gesture-handler.
Experience integrating analytics tools such as AppsFlyer, Mixpanel, or Google Analytics.
Familiarity with libraries like react-native-webview, react-native-config, and react-native-mmkv.
Proficiency with utilities like dayjs for date and time manipulation.
Why This Role?
Dynamic Industry: Be part of the fast-growing sports gaming sector, delivering engaging mobile experiences to millions.
Global Team: Work with a talented, multinational team across key global locations.
Growth & Perks: Enjoy competitive compensation, professional development opportunities, and a creative work environment.
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About The Company
Fliff is the home of social sports gaming. Our social and sweepstakes prediction games offer a new way to have skin-in-the-game that is simpler, interactive, and free to play.
By pairing the social treasures of sports gaming with loyalty rewards and promotions, sports fans can sweat the game without sweating the losses. Fliff combines the best of social gaming, fantasy sports, and sports betting into a fun and easy to use experience.
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