Careers at Gradle Inc.

Our client is a diverse, remote-first company in the sports tech and gaming industry, backed by top-tier investors. With a development hub in Sofia, Bulgaria, and operations in Philadelphia, USA, the company delivers innovative, social-first experiences to sports fans worldwide. Their flagship platform revolutionizes how fans engage with sports through free-to-play social gaming, sweepstakes, loyalty rewards, and gamified sports predictions. With a focus on engagement and community-building, they offer an exciting alternative to traditional real-money sports betting.

The goal of the project is to provide a social network type of interactive layer on top of the existing application.

• React JS/Native
• CSS
• TypeScript
• Redux/Context API

• 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;
• 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;
• 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;
• 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;

• 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+;
• Knowledge of English from Upper-Intermediate and higher;

• Previous experience in iGaming or online gambling is a plus;
• 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;

The global benefits package includes:

• Technical and non-technical training for professional and personal growth;
• Internal conferences and meetups to learn from industry experts;
• Support and mentorship from an experienced employee to help you professional grow and development;
• Internal startup incubator;
• Health insurance;
• English courses;
• Sports activities to promote a healthy lifestyle;
• Flexible work options, including remote and hybrid opportunities;
• Referral program for bringing in new talent;
• Work anniversary program and additional vacation days.