Senior Mobile Engineer — Crypto & Fintech Platforms

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

Benefits offered by this job

Comprehensive healthcare

Wellness and meal allowances

Education subsidy for growth

Team building programs

Company events

Job summary

OKX, a leading crypto exchange, is hiring a Mobile Engineer on the Trading team to design and ship end-to-end mobile experiences for millions of users across iOS and Android. You will apply knowledge of crypto products, blockchain tech, and market dynamics, collaborating with product, design and business teams, and leveraging AI coding tools to accelerate development.

The role emphasizes maintainable code, code reviews, onboarding new engineers, and delivering scalable solutions that drive

Qualifications

• Shipping production mobile code on iOS/Android.
• Strong Swift, Kotlin, or React Native skills.
• Experience in fintech, crypto, or Web3 environments.

Responsibilities

• Design and build end-to-end mobile systems across iOS and Android.
• Apply knowledge of crypto products, blockchain tech, and market dynamics at scale.
• Ship production-quality code with maintainability and tests.
• Break down complex engineering projects into executable tasks and collaborate cross-functionally.
• Identify stakeholders and align partners toward project completion.
• Conduct code reviews and act on feedback promptly.
• Apply AI coding tools to accelerate development and improve workflows.
• Serve as a SME within the mobile engineering team and advise on projects.
• Build relationships with stakeholders and share data-driven updates.
• Participate in interviewing and onboarding new team members.

Skills

Mobile development

Swift

Kotlin

React Native

AI tools adoption

Technical communication

Prompt engineering

Education

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

Tools

AI coding tools

Job description

OKX, a leading crypto exchange, is hiring a Mobile Engineer on the Trading team to design and ship end-to-end mobile experiences for millions of users across iOS and Android. You will apply knowledge of crypto products, blockchain tech, and market dynamics, collaborating with product, design and business teams, and leveraging AI coding tools to accelerate development.

The role emphasizes maintainable code, code reviews, onboarding new engineers, and delivering scalable solutions that drive