Real-Time Messaging Frontend Engineer - Android

Binance; Hong Kong; Remote; HKD 420,000 - 720,000; Full time

Benefits offered by this job

Remote-first policy

Competitive salary

Learning opportunities

Job summary

Binance in Hong Kong is hiring an Android Engineer to design, develop, and maintain client-side apps for our instant messaging platform, with Kotlin/Java on Android as the focus. You will collaborate across Android, iOS, and Web to ensure a unified UX and scalable architecture.

You’ll use AI-powered tools to accelerate front-end work, integrate RESTful and real-time protocols, optimize performance, and mentor junior engineers.

Qualifications

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

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 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

Skills

Android development

Kotlin/Java

AI tooling

Real-time protocols

Git/CICD

Multithreading

Security best practices

Education

Bachelor's degree in CS/Software Eng

Tools

Android Studio

Git

CI/CD pipelines

Job description

Binance in Hong Kong is hiring an Android Engineer to design, develop, and maintain client-side apps for our instant messaging platform, with Kotlin/Java on Android as the focus. You will collaborate across Android, iOS, and Web to ensure a unified UX and scalable architecture.

You’ll use AI-powered tools to accelerate front-end work, integrate RESTful and real-time protocols, optimize performance, and mentor junior engineers.