Software Engineer

Who you are

• B.S. or M.S. in Computer Science or equivalent degree/experience
• Proven experience shipping production-quality mobile code on iOS and/or Android
• Strong proficiency in Swift, Kotlin, or React Native
• Experience working in fintech, crypto, or Web3 environments
• Demonstrated ability to integrate AI tools to optimise workflows and drive measurable impact — e.g. efficiency gains, quality improvements
• Ongoing AI skill development — prompt engineering, agent orchestration, staying current with emerging AI technologies
• Experience communicating technical concepts to non-technical audiences
• Familiarity with DeFi protocols, wallet integrations, or on-chain data
• Experience contributing to open source projects or shared code repositories
• Active participation in the developer community (blogs, GitHub, Stack Overflow, etc.)
• Experience in highly collaborative, fast-paced environments
• Experience adhering to responsible, ethical AI practices (e.g. risk assessment, bias mitigation)
• Fluent in Mandarin and English

What the job involves

• Our engineering team is comprised of creative problem solvers and strategic software engineers who collaborate closely with product, design, and business teams. We sit at the intersection of finance and technology, building mobile experiences that help millions of users worldwide trade, invest, and explore Web3
• As a Mobile Engineer on our Trading team, you will help grow the crypto ecosystem by identifying new features, product opportunities, and scalable solutions — enabling users and partner businesses to unlock the full potential of OKX's platform
• Design and build end-to-end mobile systems across iOS and Android, from architecture to launch strategy
• Understand and apply knowledge of crypto products, blockchain technologies, and market dynamics to deliver solutions at scale
• Ship production-quality code with an emphasis on long-term maintainability, with relevant documentation and test coverage
• Break down complex engineering projects into executable tasks and partner with applicable cross-functional teams
• Independently identify stakeholders and align cross-functional partners toward project completion
• Conduct code reviews and provide constructive feedback; action feedback from reviews of your own code promptly
• Apply AI coding tools to accelerate development, improve code quality, and optimise engineering workflows
• Serve as a subject matter expert within the mobile engineering team and provide consultation on domain-level projects
• Build relationships with internal stakeholders; share project updates and influence decision-making through data-driven insights
• Participate in interviewing and onboarding of new team members