Software Engineer, Mobile, Web3

About the role

OKX is looking for a Mobile Software Engineer to join its global team and help build the core OKX app used by millions of daily active users. You will work on iOS and Android platforms, delivering high‑quality Web3 features that enable crypto trading, asset management and wallet functionality.

Key responsibilities

• Develop and maintain new features for the all‑in‑one iOS and Android applications.
• Optimize performance and ensure a seamless user experience for millions of users.
• Stay current with industry trends and evaluate new technologies to meet fast‑growing business needs.
• Collaborate closely with design, product and other engineering teams to turn ideas into scalable features.
• Work with global development teams to deliver consistent solutions across regions.
• Maintain high‑quality technical documentation and improve cross‑office cooperation.
• Integrate AI tools into the engineering workflow to automate and streamline development tasks.

Required profile

• Proven experience in native iOS/Android development or cross‑platform frameworks such as ReactNative, Flutter or Lua.
• Ability to build AI‑leveraged engineering workflows and curate domain knowledge bases.
• Fluency in at least one of the following languages: Java, Objective‑C, Swift, Kotlin, JavaScript.

Required skills

• iOS development (Swift, Objective‑C)
• Android development (Kotlin, Java)
• Cross‑platform frameworks (ReactNative, Flutter, Lua)
• AI development tools (Claude, Code, Codex)
• Performance optimization
• Technical documentation

What we offer

• Opportunity to work on a high‑impact product with millions of users.
• Exposure to cutting‑edge Web3 and crypto technologies.
• Collaborative global team environment.