Senior Staff Software Engineer, Mobile, Onshore Centralized Exchange

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

Who We Are

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.

OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.

Across our multiple offices globally, we are united by our core principles:  We Before Me ,  Do the Right Thing , and  Get Things Done . These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.

OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About The Opportunity

We are looking for a Senior Staff Mobile Engineer to join our Onshore Centralised Exchange team. the engineering group responsible for building and scaling OKX's core regulated trading experience for millions of daily active users.

You will be a senior technical voice on a global mobile team, working across iOS and Android to deliver high-quality trading, asset management, and wallet features. You are deeply native in one platform and confident contributing across both while leveraging AI coding tools to move fluidly between stacks. You will work closely with product, design, and cross-functional engineering teams to ship features that are fast, reliable, and built to scale.

This role is open to candidates at Senior Staff level, with strong Staff-level engineers also considered.

What You'll Be Doing

• Develop new features for the OKX all-in-one iOS and Android app as part of a global mobile team.
• Design and build scalable mobile systems from architecture decisions through to production launch.
• Drive performance optimisation across the app, with a relentless focus on user experience and reliability at scale.
• Work closely with product and design teams to translate ideas into high-quality, user-facing features.
• Collaborate with international development teams to deliver localised solutions while maintaining architectural consistency.
• Apply AI coding tools to accelerate development, improve code quality, and cross-translate solutions across iOS and Android platforms.
• Stay current with mobile industry trends and evaluate new technologies to address fast-evolving business needs.
• Maintain high-quality technical documentation and contribute to efficient cross-office and cross-timezone collaboration.
• Mentor engineers across the team and contribute to a culture of technical excellence and ownership.

What We Look For In You

• 8+ years of native iOS or Android development experience, with a strong track record of shipping production-quality mobile code at scale.
• Deep expertise in either iOS (Swift/Objective-C) or Android (Kotlin/Java), with confidence contributing across both platforms.
• Actively uses AI tools in your engineering workflow — including building AI-leveraged workflows, curating domain knowledge bases, and codifying repeatable agent skills so tools like Claude Code or Codex deliver reliably on real production work.
• Solid understanding of common data structures, algorithms, and mobile performance optimisation techniques.
• Comfortable with agile development practices including TDD, CI/CD, and Scrum.
• Strong communication skills — able to collaborate effectively across global, cross-functional teams and articulate technical trade-offs clearly.
• Passionate about mobile technology and motivated by building experiences for a large, global user base.

Nice-To-Haves

• Hands-on experience working across both iOS and Android in a production environment.
• Familiarity with cross-platform frameworks such as React Native, Flutter, or Lua.
• Experience in fintech, crypto, or other high-scale consumer app environments.
• Familiarity with DeFi protocols, wallet integrations, or on-chain data.

Perks & Benefits

• Competitive total compensation package
• L&D programs and Education subsidy for employees' growth and development
• Various team building programs and company events
• Wellness and meal allowances
• Comprehensive healthcare schemes for employees and dependants
• More that we love to tell you along the process!

#LI-ML1 #LI-ONSITE

Notice:

All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.

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