Security Architect at Graphcore

About us Graphcore is a globally recognized leader in Artificial Intelligence computing systems. The company designs advanced semiconductors and data centre hardware that provide the specialized processing power needed to drive AI innovation, while delivering the efficiency required to support its broader adoption. As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Job Summary We are seeking a Senior Principal Security Architect to define and lead the end-to-end hardware and firmware security strategy for next-generation ARM-based AI server platforms. You will establish a zero-trust foundation at the silicon and board level, ensuring protection of AI models, datasets, and infrastructure across the entire stack. The Team You will work cross-functionally with silicon design, hardware engineering, firmware, and platform software teams, as well as external industry groups and open-source communities. Responsibilities and Duties - Lead design of ARM Confidential Compute Architecture (CCA) and secure enclave environments. - Define hardware Root of Trust (RoT), secure boot, firmware update, and key management architectures. - Design security for high-speed interconnects including PCIe and NVMe encryption. - Conduct system-level threat modeling and implement mitigations against advanced attack vectors. - Guide secure firmware development including UEFI, TF-A, and OpenBMC. - Collaborate across teams and industry bodies to influence security standards and roadmaps. - Design runtime audit frameworks and attestation mechanisms. Candidate Profile Essential: - MS or PhD in Computer Science, Engineering, or related field. - 12+ years experience in hardware or platform security. - Deep expertise in ARM architecture including ARMv9, TrustZone, CCA, and RME. - Experience designing platform security including TPM, RoT, and cryptographic systems. - Strong understanding of firmware, OS, and virtualization security. - Expert knowledge of hardware threat landscape and attack techniques. - Strong leadership and communication skills. Desirable: - Experience securing AI/ML workloads and confidential computing. - Participation in industry standards bodies (TCG, OCP, etc.). - Knowledge of SmartNIC and peripheral security. - Understanding of post-quantum cryptography. - Experience with confidential computing in AI workloads. We welcome people of different backgrounds and experiences and are committed to building an inclusive work environment that makes Graphcore a great home for everyone. We are an equal opportunity employer and want to build a work environment where everyone is happy, productive and respectful so they can do their best work. If you have a disability or additional need that requires accommodation, just let us know.