Senior Mobile Engineer

OKX INC.; United States; On-site; USD 140,000 - 210,000; Full time

Job summary

OKX INC. is seeking a Senior Mobile Engineer to own the end-to-end mobile experience for card issuance by collaborating with cross-functional teams worldwide and delivering robust, user-friendly features.

You will ship production-quality apps in Swift, Kotlin, or Rust, work remotely with teams in the US and Asia, and drive secure, reliable features from discovery through production while continuously improving performance and reliability.

Qualifications

• B.S. or M.S. in Computer Science or equivalent practical experience.
• Proven experience in shipping and operating production-quality mobile applications.
• Expertise in iOS or Android development.
• Strong proficiency in Swift, Kotlin, or Rust, with a willingness to learn new technologies.
• Proficiency in English and Mandarin Chinese.

Responsibilities

• Manage end-to-end mobile engineering for global card issuance features.
• Translate business and regulatory requirements into robust architecture and delivery plans.
• Drive cross-functional initiatives focusing on security, reliability, and maintainability.

Skills

Mobile development experience

Swift

Kotlin

Rust

AI coding tools

English & Mandarin Chinese

Education

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

Job description

Owning the end-to-end global card issuance process, the full-time Senior Mobile Engineer will enhance card and payment products by collaborating with cross-functional teams and developing mobile applications primarily in Swift, Kotlin, or Rust, while working remotely with teams in the US and Asia.

Key responsibilities

• Manage the global card issuance process from eligibility to lifecycle servicing, improving user experience as the company expands
• Translate business and regulatory requirements into sound architecture and executable delivery plans while deeply learning the card issuing and payment domains
• Drive cross-functional initiatives to completion, focusing on security, reliability, and maintainability of features from discovery through production

Required qualifications

• B.S. or M.S. in Computer Science or equivalent practical experience
• Proven experience in shipping and operating production-quality mobile applications, with expertise in iOS or Android
• Strong proficiency in Swift, Kotlin, or Rust, with a willingness to learn new technologies
• Demonstrated use of AI coding tools with measurable impact on delivery speed and code quality
• Professional proficiency in English and Mandarin Chinese, with a genuine curiosity about card issuing and payment businesses