Android Software Engineer – Mobile Infrastructure & Performance

About the role

OKX is seeking an Android Software Engineer to join its Mobile Infrastructure team. You will help shape the performance and scalability of a core crypto application used by millions of daily active users.

Key responsibilities

• Build mobile infrastructure and tools to enhance engineering efficiency.
• Analyze and optimise UI and infrastructure code for better performance.
• Develop and maintain reusable Android app components.
• Collaborate with product and engineering teams to deliver technical solutions and best practices.
• Optimise project structure and workflow to improve productivity, efficiency, and quality.
• Drive architectural innovations to support world‑class mobile app development.

Required profile

• Bachelor's degree or equivalent practical experience.
• 3+ years of industry experience in Android development.
• Proven experience building and shipping complex, business‑critical Android products with frequent iteration.
• Experience optimising app performance, reducing memory footprint and decreasing package size.
• Deep understanding of design patterns, Android SDK and a broad knowledge of the Android tech stack.
• Familiarity with Jetpack and open‑source Android libraries such as RxJava, Retrofit, Litho, etc.
• Working knowledge of remote APIs, concurrency, layouts, transitions, animations, client‑side persistence and architectural patterns.

Required skills

• Android SDK
• Jetpack
• RxJava
• Retrofit
• Litho
• Design patterns
• Concurrency
• Remote APIs
• UI layouts, transitions and animations
• Client‑side persistence
• Architectural patterns
• Performance and memory optimisation