Chapter
Chapter
Company overview

Why Chapter Exists Every morning, 11,000 Americans wake up and begin their first day of retirement. While retirement should be an exciting, empowering, and fulfilling part of one’s life, the reality today is that retirement brings along with it a fundamentally new set of challenges that make it an overwhelming time for many. At Chapter, we believe that the current infrastructure for retirement is broken, and we’re on a mission to fix it. We’ve started by building industry leading technology to solve the first major obstacle in retirement: navigating Medicare (healthcare coverage for retirees over 65). Our products help seniors sign up, choose an insurance plan, and leverage their plan after they are enrolled. And, unlike most Medicare advisors who only search plans that pay them, Chapter searches every Medicare option nationwide. This allows us to find savings and benefits that others miss. But our ambition doesn’t stop with Medicare — we seek to transform the way that Americans navigate and experience retirement. If this sounds exciting to you, we’d love to speak with you.

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Published: 2025-11-27  •  Sofia, Bulgaria (city)
Remote
Full-time
Company Background

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.

Project Description

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

Technologies
  • React JS/Native
  • CSS
  • TypeScript
  • Redux/Context API
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;
  • 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;
Job Requirements
  • 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;
Nice to Have
  • 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;
What Do We Offer

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.