Mobile Game Security Software Engineer

Duties

• Develop KSS mobile Anti-Cheat and Anti-Tamper features to detect and respond to mobile security threats that may occur in Android and iOS game runtime environments, such as tampering, bypasses, automation, and unauthorized tool usage.
• Based on an understanding of mobile operating systems and runtime behavior, you will analyze client-side security threats and design and implement security features that can be reliably applied across various mobile game environments.
• Detect and respond to mobile game client security threats such as tampering, repackaging, hooking, debugging, rooting/jailbreaking, and automation tools.
• Analyze Android/iOS internals, runtimes, system calls, and security mechanisms.
• Design and implement features for memory/process protection, runtime environment verification, and unauthorized tool detection.
• Analyze new mobile cheat and attack techniques and research defensive technologies.
• Provide technical support and improvements to ensure KSS security features are reliably applied across various mobile game environments.

Qualifications

• 5+ years of experience with C++ software development skills and understanding of object-oriented design.
• Experience developing mobile Anti-Cheat, Anti-Tamper, DRM, security solutions, or client protection technologies.
• Understanding of system programming concepts such as memory management, and multithreading.
• Experience developing native clients for Android or iOS, or equivalent understanding.
• Basic knowledge of mobile operating systems, runtimes, process/memory structures, and executable file formats.
• Ability to analyze problems from a security perspective and design solutions while considering potential bypass methods.
• Ability to learn new technologies and solve unfamiliar problems.

Preferred Qualifications

• Experience designing, developing, or operating SaaS-based security solutions such as Anti-Cheat or Anti-Tamper.
• Understanding of Android or iOS platform internals.
• Experience with mobile native development or analysis technologies such as Android NDK, JNI, Objective-C/Swift, Mach-O, and ELF.
• Understanding of ARM/AArch64 architecture and assembly.
• Experience using reverse engineering and debugging tools such as IDA, Ghidra, Frida, LLDB, and lldb-server.
• Understanding of mobile security techniques such as rooting/jailbreak detection, hooking detection, repackaging prevention, integrity verification, and obfuscation.
• Research experience in malware analysis, vulnerability analysis, reverse engineering, or anti-debugging.
• Experience operating security features reliably in large-scale live mobile game environments.
• Experience in low-level mobile system programming with consideration for performance, stability, and compatibility.