Mobile Security Engineer (Android / Web)

About the role

Binance, a global blockchain ecosystem behind the world's largest cryptocurrency exchange by trading volume and registered users, is looking for a Mobile Security Engineer who works on Android or Web. The role focuses on building risk detection and code-hardening capabilities for mobile apps.

Key responsibilities

• Develop and maintain the Risk SDK on Android (Java/Kotlin, NDK) or Web (JavaScript/TypeScript).
• Build risk environment detection capabilities such as HOOK, debug and device tampering detection.
• Develop code-hardening capabilities, including research and development of code obfuscation, VMP and related technologies.
• Collaborate with the backend and strategy teams on signal reporting, data quality and detection efficacy evaluation.

Required profile

• 3+ years of client-side development experience, with Android or Web development capability.
• Familiarity with common attack techniques such as hooking frameworks, emulators/cloud phones, app multi-boxing/cloning, repackaging and automated clients, and their countermeasures.
• Strong engineering discipline: attention to code quality, performance and stability (package size, startup time, crash rate, compatibility).

Required skills

• Proficiency in one or more languages: Java, C/C++, ARM assembly, TypeScript, JavaScript.
• Reverse engineering on Android (Smali/DEX, native SO layer) or Web (JS deobfuscation, protocol analysis).
• Familiarity with Android system internals or the browser runtime (app lifecycle, signature mechanism, JNI, WebView, JS engine).

What we offer

• Competitive salary and company benefits.
• Remote-first, work-from-home arrangement (may vary depending on the role and team).
• A flat, user-centric global organization with opportunities for career growth and continuous learning.