We are seeking a highly skilled and experienced SoC Security Architecture & SDL Lead to lead the Security Architectural definition. They will also oversee the secure software development process for Arm’s hardware security IP and SoC programs This role unifies security-by-design leadership with process governance, ensuring that our silicon platforms achieve industry-leading trustworthiness from architecture through post-silicon delivery. We have exciting opportunities for experienced and self-motivated Security Engineers with demonstrated expertise in SoC Solutions and looking to make a difference in an innovative and inclusive team. The Security Architecture & SDL Lead is responsible for driving both the Security Architecture definition and the Secure Development Lifecycle (SDL) for Arm IP and SoC products. This role ensures that all subsystem and SoC designs meet Arm’s security requirements through detailed threat modeling, architecture, verification, and documentation. Acting as both a security process owner and technical authority, the SDL & Architecture Lead guarantees that security is embedded and successful from concept to production silicon. As the Security Architect, you will be responsible for defining and developing creative Security Architecture solutions for SoCs for multiple product market segments. As the SDL Lead, you will lead the successful implementation of the Solution SDL process for the product, ensuring security objectives are achieved throughout the development and productization phases. This would include Threat Model, Security Architecture, Security V&V Plan, Documentation, and Certifications and Compliance leadership. Develop architectures for SOC and subsystem Security, Root of Trust, Secure Boot, Key Management, Confidential Compute, Authentication, Encryption, and Secure Manufacturing.



Architect robust access control, privilege management, isolation, and confidentiality mechanisms between hardware and software domains. Develop and maintain architectural threat models, mapping assets, attack surfaces, and mitigations aligned with the Secure Development Lifecycle methodology. Derive Security Functional Requirements (SFRs) from threat models and ensure traceability through development and verification. Working knowledge of cryptographic design, fault/side-channel mitigation, and firmware security. Familiarity with security certifications (PSA Certified, ISO/SAE 21434, FIPS 140-3, Common Criteria). Own and lead the Solution SDL process across all project phases, ensuring compliance with Arm standards and external certifications. Drive timely creation and review of SDL artifacts (Threat Models, Security Architecture, V&V Plans, and Security Documentation) and coordinate as necessary for external audit and certification. Deliver complete security documentation including Threat Models, Security Architecture Reports, Key Management Plans, and Assumptions of Use (AoUs). Collaborate with Verification & Validation Leads to define and implement Security Verification & Validation (V&V) Plans. Ensure all SFRs are testable, verified, and validated at pre- and post-silicon stages. Ensure security issues are triaged, resolved, and systematically looped back into the SDL process for continuous improvement.



Approve sign-off criteria and ensure security verification evidence supports product release readiness. Support security assessments, penetration testing, and certification activities (PSA Certified, FIPS 140-3, ISO/SAE 21434). Partner and Customer focus – We anticipate and exceed customer needs. Teamwork and Communication – We collaborate optimally across diverse teams. Creativity and Innovation – We challenge the status quo. We develop careers and personal growth. United in Purpose, Empowered Through Inclusion – We value diversity to build better solutions. #LS-KS1 Use of AI in Your Application At Arm, we embrace the benefits AI can bring, including in recruitment. You may use AI to support your preparation, such as improving the clarity of written responses, practicing interview questions, or learning more about our industry. As such, you may not use AI to complete assigned tasks as part of any assessments. If you plan to use AI-supported or assistive technologies as part of a reasonable adjustment, please contact [email protected] this is not an exhaustive list, examples of support include breaks between interviews, having documents read aloud, or office accessibility. Arm’s approach to hybrid working is designed to create a working environment that supports both high performance and personal wellbeing. In some cases, the flexibility we can offer is limited by local legal, regulatory, tax, or other considerations, and where this is the case, we will collaborate with you to find the best solution. We are a diverse organization of dedicated and cutting-edge individuals, and don’t discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. #

📌 Digital Security Architect (Remote) - Remote (Toronto)
🏢 ARM
📍 Toronto