Client Full-Stack Engineer — IM Chat Platform, Android Focus

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world. Responsibilities Design, develop, and maintain client-side applications for an instant messaging platform, with Android as the primary focus Build core messaging features: real-time chat, group chat, media messaging, message sync, offline messaging, push notifications Participate in client-side architecture design, ensuring consistent UX across Android, iOS, and Web Use AI-powered tools (Cursor, GitHub Copilot, ChatGPT, Claude, etc.) to support cross-stack frontend development — read, debug, and modify iOS/Web codebases Integrate RESTful APIs and WebSocket/MQTT/gRPC real-time communication protocols Handle local storage, offline-first experience, message state management, and cross-platform sync logic Optimize client performance: startup speed, memory, battery, network efficiency, UI responsiveness Collaborate with backend