Key skillsets :
1. Good knowledge about silicon security subsystem / policy, root of trust, TPM/fTPM, Widevine
2. Good knowledge on security concepts like chain of trust , Crypto Algorithms.
3. Good knowledge of trusted applications and handshake
4. Strong understanding of Security Firmware on ARM/X86 platforms
5. Firmware development experience on X86 platforms
6. Low-level driver and Board Support Package (BSP) development