Senior Mobile Security Engineer (Android/iOS)

Kuala Lumpur Until 8/22/2026 5+ years exp First posted June 23, 2026 Last posted June 23, 2026
Job description

Key Responsibilities: 
● App Hardening: Implement and maintain RASP (Runtime Application Self-Protection), 
Code Obfuscation (ProGuard/DexGuard), and Root/Jailbreak detection mechanisms. 
● Secure Connectivity: Enforce Certificate Pinning and secure TLS configurations to 
prevent Man-in-the-Middle (MitM) attacks. 
● Data Protection: Ensure no sensitive data (PII, Keys) is leaked in logs, cache, or 
snapshots. Secure usage of Android Keystore and iOS Keychain. 
● Mobile Design Components: Deliver new security design patterns and components 
for Mobile security. Create reusable libraries for biometric login, secure storage, and 
device attestation that feature teams can easily drop into their code. 
● Pentesting: Regularly decompile and attack our own binaries to verify defenses. 

Technical Requirements: 
● Deep knowledge of Android (Kotlin/Java) and iOS (Swift/Obj-C) internals. 
● Experience with mobile security frameworks (OWASP MASVS). 
● Hands-on experience with reverse engineering tools (Frida, Ghidra, MobSF). 
● Understanding of Biometric authentication flows (FaceID/TouchID implementation). 

About this role

Summary

Develop mobile security features, perform pentests, and enhance app protection for Android and iOS.

Job title

Senior Mobile Security Engineer (Android/iOS)

Experience level

senior level

Minimum experience

5+ years exp

Industry

software

Location requirements

Kuala Lumpur, no remote work allowed

Salary

Not specified

Management role

No

Skills & keywords

Required skills

KotlinJavaSwiftObjective-COWASP MASVSFridaGhidraMobSFTLSPKIAndroid KeystoreiOS Keychain

Preferred skills

reverse engineeringpenetration testingbiometric authentication

Specializations

mobile securityapp hardeningpenetration testingbiometric authenticationsecure connectivity
Locations

Structured locations inferred from the posting.

Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia

On-site City