Senior Security Engineer, PlayStation

• Strong programming experience in C/C++
• Experience developing software for Trusted Execution Environments (TEE) or ARM TrustZone
• Experience building Trusted Applications (TA) or secure platform services
• Knowledge of secure monitor calls (SMC) and world switching mechanisms
• Understanding of hardware root of trust, secure boot, and device attestation
• Experience with secure key storage and applied cryptography
• Experience working with Linux or embedded operating systems
• Bachelor’s degree or equivalent experience in Security Engineering, or related field

Desirable

• We are looking for a security engineer to design and implement security-critical components running inside Trusted Execution Environments (TEE) such as ARM TrustZone
• In this role, you will develop Trusted Applications (TA) responsible for protecting DRM keys, secure media pipelines, device integrity verification, and hardware-backed security features for mobile and media platforms
• You will work closely with platform, operating system, and hardware teams to build robust security solutions protecting high-value digital content and platform services
• Design and implement Trusted Applications (TA) running in ARM TrustZone / TEE environments
• Develop secure communication between Normal World and Secure World
• Implement secure key management and cryptographic operations inside TEE
• Build DRM and secure media protection systems
• Integrate TEE security services with Android or embedded platforms
• Implement secure storage mechanisms (RPMB, secure file systems)
• Design device attestation and hardware-backed security features
• Perform threat modeling and attack surface analysis
• Collaborate with OS, firmware, and hardware teams to integrate platform security features
• Investigate and mitigate attacks such as
• Investigate and mitigate attacks such as tampering, reverse engineering, and runtime manipulation