Distinguished Engineer, End-to-End Security Architect

About us Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. 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. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone. Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore fosters continuous learning and innovation. Job Summary Reporting into the Systems Engineering organisation, the Distinguished Engineer, End-to-End Security Architect will define and lead the security architecture for Graphcore’s inference service platform. This role is responsible for establishing a comprehensive security strategy spanning platform, infrastructure, networking, service operations, customer assurance, and compliance readiness. Working across multiple engineering and operational functions, the successful candidate will provide technical leadership, drive security requirements, and ensure the platform delivers robust protection, resilience, and trust for customers. The Team You will work closely with teams across security architecture, infrastructure engineering, networking, site reliability engineering, platform software, firmware, data centre operations, compliance, legal, customer engineering, and customer security. The team collaborates across the business to deliver secure, reliable, and scalable AI infrastructure and services while supporting customer assurance, regulatory requirements, and operational excellence. Responsibilities and Duties • Own the end-to-end security architecture for the inference service platform, covering infrastructure, networking, APIs, operational controls, monitoring, and customer assurance. • Define security principles, threat models, trust boundaries, tenant isolation requirements, and architectural standards for the service. • Establish security requirements for deployment environments, including physical security, operational controls, access management, and asset protection. • Define platform security requirements across hardware, firmware, secure boot, attestation, software integrity, and lifecycle management. • Lead the design of network and service isolation controls, secure communications, segmentation strategies, and administrative access protections. • Own security architecture for authentication, authorisation, secrets management, encryption, key management, and data protection controls. • Define privileged access management approaches, audit requirements, access review processes, and emergency access procedures. • Establish logging, monitoring, telemetry, incident response, and security assurance requirements across the service lifecycle. • Partner with engineering and operations teams to ensure security requirements are effectively implemented, maintained, and validated. • Assess security posture against customer, contractual, regulatory, and internal requirements, managing risk-based decisions where required. • Support customer security reviews, audits, penetration testing activities, security questionnaires, and technical assurance discussions. • Provide technical leadership, architectural guidance, mentoring, and design review expertise across multiple teams and disciplines. Candidate Profile Essential • Advanced degree in Computer Science, Computer Engineering, Cybers