[Hiring] Client Full-Stack Engineer @Binance

Role Description

• 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 teams on API design, integration, and production issue investigation.
• Senior level: mentor junior engineers, contribute to technical design decisions.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related discipline.
• Engineer: 1-3+ years of experience; Senior Engineer: 3-5+ years.
• Solid production experience in Android development (Kotlin and/or Java).
• Good understanding of Android SDK, Jetpack components, asynchronous programming, and modern client-side architecture.
• Required: ability to use AI-powered development tools (Cursor, GitHub Copilot, ChatGPT, Claude, or similar) for cross-stack frontend development.
• Able to read, understand, debug, and make reasonable changes in iOS or Web codebases with AI tool support.
• Familiarity with WebSocket, MQTT, gRPC, or similar real-time communication protocols.
• Understanding of messaging concepts: message delivery, read status, sync, local persistence, offline support, push notifications.
• Good understanding of client-side performance optimization, memory management, multithreading, and security best practices.
• Familiar with Git, CI/CD pipelines, automated testing, and Agile processes.
• Strong debugging, problem-solving, ownership, and communication skills.

Requirements

• Experience building IM products or communication platforms (WhatsApp, Telegram, WeChat, Discord, Slack, Messenger, etc.).
• iOS development experience (Swift, SwiftUI, Objective-C).
• Web frontend experience (TypeScript, React, Vue, Next.js).
• Cross-platform client or mobile full-stack development experience.
• End-to-end encryption, message security, or cryptographic protocols experience.
• Voice/video calling or RTC technologies experience.
• Large-scale distributed messaging infrastructure experience.
• Fintech, payments, or Web3 applications experience.
• Open-source contributions or published apps on Google Play/App Store.

Benefits

• Shape the future of finance.
• Collaborate with world-class talent in a user-centric global organization with a flat structure.
• Tackle challenging projects in a fast-paced and innovative environment with autonomy.
• Thrive in a results-driven workplace with opportunities for career growth and continuous learning.
• Competitive salary and company benefits.
• Remote-first, work-from-home arrangement (may vary depending on the nature of the role and team).