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