Staff Mobile Security Engineer (AI-Driven)

United States Digital Space LLC; Hong Kong; On-site; HKD 800,000 - 1,200,000; Full time

Job summary

The company is a leading crypto exchange seeking a Staff Mobile Security Engineer to join the Mobile Security team in Hong Kong. You will identify vulnerabilities across mobile apps and platforms, working at the intersection of offensive security, mobile engineering, and platform protection.

You will leverage AI-assisted development and build scalable security workflows, collaborating with development, operations, and compliance to embed security across the stack.

Qualifications

• 5+ years in mobile application security or offensive security.
• Hands-on expertise in iOS and/or Android.
• Proficient in Kotlin, Swift, TypeScript, or JavaScript.
• Able to create PoCs and review code for security standards.

Responsibilities

• Identify and address security vulnerabilities in mobile code, systems, and networks via manual review, automated tools, and threat modelling.
• Manage and optimise security tools, processes, and alerts.
• Evaluate Bug Bounty submissions and coordinate remediation with engineering.
• Produce security findings reports for technical and management audiences.

Skills

Mobile security

iOS/Android

Code review Kotlin/Swift/TS/JS

Threat modelling

AI-assisted workflows

Tools

AI tools like Claude Code or Codex

Job description

The company is a leading crypto exchange seeking a Staff Mobile Security Engineer to join the Mobile Security team in Hong Kong. You will identify vulnerabilities across mobile apps and platforms, working at the intersection of offensive security, mobile engineering, and platform protection.

You will leverage AI-assisted development and build scalable security workflows, collaborating with development, operations, and compliance to embed security across the stack.