Software Engineer, Mobile, Web3

As a mobile software engineer, you will build and maintain a core OKX app with millions of daily active users. You will work cross-functionally with design, product and other engineering teams to identify customer needs, and ship high-quality new features through fast iterations. This is an opportunity to learn the full life cycle of crypto mobile applications including pro/retail trading, asset management and wallet. Join us in building the next generation of mobile-first Web3 experiences, empowering millions of users to seamlessly interact with digital assets, decentralized applications, and blockchain-powered services through secure and intuitive products.

• →Part of a global mobile team, developing new features for the all-in-one iOS and Android apps.
• →Strive for performance optimization and maximize customer satisfaction.
• →Stay on top of industry trends, and evaluate new solutions to address our unique and fast-growing business needs.
• →Work closely with design and product teams, and turn design ideas into quality features that scale to millions of users.
• →Collaborate with global development teams, and deliver customized solutions targeting international users while maintaining consistency with the overall architecture.
• →Maintain high-quality technical documentation and improve efficiency in cross-office/timezone cooperation.

• Experience in either native iOS/Android development, or cross-platform solutions like ReactNative/Flutter/Lua.
• Builds AI-leveraged engineering workflows, curating domain knowledge bases, harnessing context, and codifying repeatable agent skills/workflows, so AI tools like Claude Code/Codex deliver reliably on real production work.
• Fluent with at least one of the following languages: Java/Objective-C/Swift/Kotlin/JavaScript.
• Understanding of common data structures and algorithms.
• Embrace agile development process including TDD, CI and Scrum.
• Passionate about mobile technology and building applications for a large user base.

• Strong understanding of blockchain fundamentals, including wallets, smart contracts, tokens (ERC-20, ERC-721, ERC-1155), and decentralized applications (dApps).
  
• Experience building or maintaining production-grade Web3, DeFi, NFT, GameFi, or digital asset applications.