Mobile Software Engineer (Android)

About the role

OKX, a leading crypto exchange and developer of OKX Wallet, is looking for a high-ownership Mobile Engineer to join its team in Singapore. You will build, optimize and scale consumer-facing mobile experiences that drive growth across global markets, from acquisition and activation to trading conversion. The team works as an AI-native engineering team, using modern agentic workflows such as Claude Code and Codex to build scalable features quickly.

Key responsibilities

• Design, build and optimize mobile features that improve user acquisition, activation, trading conversion and the overall mobile experience.
• Partner with Product Managers, Designers, Data Analysts and Backend Engineers to define requirements and deliver features from ideation to production.
• Integrate AI coding assistants and agents into daily work, and help design automated, AI-powered development workflows, testing suites and developer tooling.
• Contribute to shared mobile architecture, including architectural standards, client-side design patterns and cross-platform infrastructure.
• Instrument event tracking, run A/B experiments, analyze user data and iterate to improve conversion.
• Write clean, modular code and maintain high standards for automated testing, performance tuning, crash-free sessions and secure releases.

Required profile

• Solid software engineering fundamentals and production experience building, optimizing and maintaining scalable native Android apps.
• Active use of AI coding assistants and agents, with a drive to automate repetitive tasks.
• Understanding of user needs and business metrics, and end-to-end ownership of features.
• Ability to think beyond a single platform and contribute to shared mobile architecture.
• Hands-on experience or familiarity with mobile analytics, A/B testing, feature flagging and conversion optimization.
• Nice to have: fintech, crypto or high-growth consumer app experience; shared framework or multiplatform architecture experience; CI/CD pipeline experience (Fastlane, GitHub Actions, custom Gradle plugins).
• English and Mandarin fluency is a plus.

Required skills

• Kotlin and modern Jetpack libraries
• Clean Architecture
• Native Android development
• AI coding assistants such as Claude Code, Codex and Cursor

What we offer

• Competitive total compensation package
• L&D programs and education subsidy
• Team building programs and company events
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants