Job Responsibilities 1. Responsible for mining vulnerabilities in Android, iOS, HarmonyOS, WebApp/mini programs, and conducting research on their exploitation; 2. Conduct in-depth security research on Android, HarmonyOS, or iOS mobile operating systems and applications; 3. Develop innovative mobile security protection technologies and mechanisms to address threats on mobile platforms; 4. Responsible for tracking domestic and international mobile security trends and responding quickly to mobile security incidents. Job Requirements 1. Familiar with ARM/ARM64, smali instructions, proficient in using reverse engineering tools and frameworks such as classdump, Apktool, dex2jar, JEB, Frida, Xposed, etc., with strong reverse analysis skills; 2. Familiar with mobile development technology, proficient in static analysis and dynamic debugging techniques for Android, iOS, and WebApp/mini programs, as well as mobile system principles and security mechanisms; 3. Practitioners who master various security reinforcement techniques such as anti debugging, code obfuscation, code masking, and code hot fixes are preferred; 4. Familiar with one or more languages such as C/C++, Java, and Python; 5. Strong English reading and writing skills, able to read various types of papers; 6. Experience in independently exploiting vulnerabilities (driver vulnerabilities/framework vulnerabilities/browser vulnerabilities), with priority given to successfully obtaining CVE numbers;