OKX is hiring a
Mobile Engineer, Security in Singapore

Summary

As a mobile software engineer at OKX, you will build and maintain the core app with millions of daily active users, working cross-functionally to identify customer needs and ship new features. Your focus is on app security, including reverse engineering, developing security products, researching latest technologies, building scanning platforms, and analyzing security issues.

Requirements

• Bachelor's or Master's degree in Computer Science or a related field
• Over 5 years of experience in mobile security, with good coding skills
• Proficient in at least two languages, such as Java, Kotlin, C/C++, Objective-C, Swift, Python, etc
• Proficient in reverse engineering techniques on Android or iOS platforms
• Have certain development capabilities on Android or iOS platforms, able to independently develop PoC to assist in reverse engineering
• Proficient in using hook frameworks such as Xposed and Frida
• Excellent communication and coordination skills, strong teamwork spirit, outstanding execution ability, and strong problem analysis and solving abilities

Responsibilities

• Responsible for reverse engineering the company's apps, analyzing defense weaknesses, and enhancing app security level
• Develop mobile application security products, including app shielding, DEX reinforcement, string obfuscation, anti-tampering, anti-reverse engineering, anti-debugging, and data encryption
• Research the latest mobile security attack and defense technologies and apply them appropriately to enhance protection level on both platforms
• Build app security scanning platforms and vulnerability metric platforms to support privacy compliance and vulnerability scanning tools
• Drive risk mitigation and provide necessary technical support to business departments
• Analyze and track security-related issues reported by users

Preferred Qualifications

• Prior experience in developing mobile security SDKs with a daily active user base of over ten million is preferred
• Participated in large-scale business risk control projects, or have practical experience in threat intelligence/business risk prevention, and analysis/countermeasures against black and gray industries
• In-depth reverse engineering of major apps from first-tier vendors, or other experiences/projects that demonstrate reverse engineering capabilities
• Proficient in ARM assembly, capable of deep-level countermeasures at the native and application layers
• Have certain capabilities in device fingerprint recognition, able to simulate new devices through methods such as flashing, modification, and application cloning

Benefits

• Competitive total compensation package
• L&D programs and Education subsidy for employees' growth and development
• Various team building programs and company events