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Job description
Senior Software Engineer, Mobile Trading
San Jose, California, United States
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). It is a trusted brand by hundreds of large institutions seeking access to crypto markets. The company is safe and reliable, backed by its Proof of Reserves. Across multiple offices globally, OKX is united by core principles: We Before Me, Do the Right Thing, and Get Things Done.
About the Opportunity
Our engineering team collaborates 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 the Trading team, you will grow the crypto ecosystem by identifying new features, product opportunities, and scalable solutions—enabling users and partner businesses to unlock OKX’s platform potential.
What You’ll Be Doing
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 emphasis on long‑term maintainability, including relevant documentation and test coverage.
Break down complex engineering projects into executable tasks and partner with cross‑functional teams.
Identify stakeholders and align cross‑functional partners toward project completion independently.
Conduct code reviews and provide constructive feedback; act on 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.
What We Look For In You
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—for example, 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.
Nice to Haves
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—risk assessment, bias mitigation.
Benefits
L&D programs and Education subsidy for employees’ growth and development.
Team building programmes and company events.
Wellness and meal allowances.
Comprehensive healthcare schemes for employees and dependants.
Equal Opportunity Statement
OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, non‑job‑related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records.
Compensation
The salary range for this position is $223,611.00 to $268,333.00. Performance bonus and long‑term incentives may be part of the package, dependent on the position offered.
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Worksite address
san jose, CA, 95199, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.