Responsibilities

📍Proficiency in one or more of the following: Java/Kotlin for Android, or Objective-C/Swift for iOS, or JavaScript/TypeScript for web 📍Familiarity with NDK/JNI and underlying system mechanisms such as Binder, sandboxing, and permission management 📍Experience optimizing SDK performance (memory, power consumption, compatibility) to ensure zero intrusion to the host app’s user experience 📍Hands-on experience with reverse engineering on Android/iOS/JavaScript; ability to analyze samples to understand underlying principles; solid knowledge of packet capture, decompilation, hooking techniques, and related frameworks 📍Strong understanding of Android system architecture and Android NDK development; familiarity with x86 and ARM assembly; proficiency with analysis and debugging tools such as IDA and GDB 📍Nice to have: Prior experience in mobile security projects

Requirement

📍Design and develop mobile (Android/iOS/Web) security and risk-control SDKs, building a highly available and resilient defensive system 📍Optimize SDK performance to ensure no impact on the main app’s user experience 📍Analyze malware and cheat/bot samples and implement effective countermeasures 📍Evaluate competing security solutions and continuously improve our own security products

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