Senior Android Security Engineer

Job Requirements

At Quest Global, it's not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.

Role Summary

We are looking for a Senior Android Security Engineer with strong expertise in Android Trusted Execution Environment (TEE) and Trusty OS development. You will build and protect the secure layers of the Android operating system.

Mandatory Skills

• Hands-on experience with Android Security Architecture.
• Strong knowledge of Trusty TEE and Trusted Applications (TA) development.
• Experience working in Secure World and Normal World interactions.
• Understanding of ARM TrustZone architecture.
• Knowledge of Keymaster/KeyMint, Gatekeeper, and Android Keystore.
• Experience with Android Verified Boot (AVB), Secure Boot, and Device Integrity mechanisms.
• Strong C/C++ development skills.
• Experience with Linux kernel, device drivers, and embedded systems.
• Understanding of cryptographic concepts and secure key management.
• Debugging and troubleshooting across Android framework, HAL, kernel, and TEE layers.
  
  

Preferred Skills

• Experience with StrongBox, Secure Elements, eSE, TPM, or HSM.
• Familiarity with Android security certifications and compliance requirements.
• Experience in vulnerability analysis, penetration testing, or security assessments.
• Knowledge of SELinux, secure provisioning, RPMB, and attestation mechanisms.
• Exposure to Qualcomm, MediaTek, Samsung Knox, or other Android security stacks.
  
  

Key Responsibilities

• Design and develop Trusted Applications (TAs) within Trusty TEE.
• Implement and enhance Android platform security features.
• Integrate secure key storage, attestation, and authentication mechanisms.
• Collaborate with framework, HAL, kernel, and hardware teams.
• Analyze and mitigate security vulnerabilities throughout the Android stack.
• Support security compliance and product hardening activities.
  
  

We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.

We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.