Senior Mobile Engineer - Crypto & AI Fintech

P2P; San Jose (CA); On-site; USD 224,000 - 322,000; Full time

Benefits offered by this job

Competitive total compensation package

L&D programs and Education subsidy

Team building programs and company &l;

Wellness and meal allowances

Healthcare schemes for employees and/​

Job summary

OKX is seeking a Mobile Engineer for its Trading team to design and ship cross‑platform mobile systems on iOS and Android. You will apply crypto product knowledge, blockchain concepts, and AI tools to accelerate development while maintaining high quality and test coverage.

You will collaborate with product, design, and business teams to deliver scalable features for millions of users globally, with emphasis on performance, reliability, and security in a fast-growing crypto environment.

Qualifications

• 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.
• Ongoing AI skill development and ability to communicate complex concepts clearly.

Responsibilities

• Design and build end-to-end mobile systems across iOS and Android, from architecture to launch strategy.
• Understand and apply crypto product knowledge and blockchain concepts at scale.
• Ship production-quality code with long-term maintainability and tests.
• Break down complex projects into executable tasks and coordinate cross-functional teams.
• Identify stakeholders and align partners toward project completion.
• Conduct code reviews and implement feedback promptly.
• Apply AI coding tools to accelerate development and improve quality.
• Serve as a subject matter expert within the mobile engineering team.
• Build relationships with internal stakeholders and share data-driven updates.

Skills

Swift

Kotlin

React Native

Fintech/crypto experience

AI tooling integration

Clear communication

Education

B.S./M.S. in Computer Science

Job description

OKX is seeking a Mobile Engineer for its Trading team to design and ship cross‑platform mobile systems on iOS and Android. You will apply crypto product knowledge, blockchain concepts, and AI tools to accelerate development while maintaining high quality and test coverage.

You will collaborate with product, design, and business teams to deliver scalable features for millions of users globally, with emphasis on performance, reliability, and security in a fast-growing crypto environment.