Senior Product Cybersecurity Engineer - Secure Product Architecture

Job DescriptionThe Role The Senior Product Cybersecurity Engineer, Secure Product Architecture role sits within the broader Product Cybersecurity organization at General Motors and focuses on the security design that protects how in-vehicle systems communicate, spanning message authentication, in-vehicle firewalls, and in-vehicle Ethernet security. This engineer acts as a security design owner for in-vehicle communications, translating threat assessments and architectural decisions into clear, actionable security requirements that engineering and supplier teams can implement across current and next-generation software-defined vehicle platforms. What You’ll Do Own and evolve the security design for in-vehicle communications, including message authentication (SecOC), in-vehicle firewalls, and in-vehicle Ethernet security. Translate threat assessments and architectural decisions into clear, testable security requirements that engineering and supplier teams can implement. Right-size requirements against supplier and platform capability, adjusting scope where requirements are not achievable rather than carrying them forward. Lead and support security design and implementation reviews across internal teams and suppliers to ensure security controls are deployed correctly. Keep the security design and its specifications current with software-defined vehicle delivery timelines and platform changes. Serve as a subject-matter expert for in-vehicle communications security and build self-service references so the broader team can scale. Your Skills & Abilities (Required Qualifications) 6+ years of experience in product, embedded, or vehicle cybersecurity, with hands-on ownership of security design and requirements. Strong working knowledge of in-vehicle communications security, including message authentication, firewalls, and automotive Ethernet. Solid understanding of embedded security principles such as secure communication, key and certificate lifecycle management, replay/freshness protection, and secure provisioning. Experience owning security design and translating it into technical requirements and specifications for internal teams and suppliers across the development lifecycle. Demonstrated ability to lead security design and implementation reviews and align stakeholders across engineering, validation, and supplier teams. Bachelor’s or master’s degree in Computer Science, Computer Engineering, Electrical Engineering, Cybersecurity, or equivalent practical experience. What Will Give You A Competitive Edge (Preferred Qualifications) Experience with software-defined vehicle architectures and service-based in-vehicle communication. Experience working across supplier-delivered ECU, firewall, and secure firmware ecosystems. Experience with AUTOSAR SecOC, Freshness Value Management (FVM), Automotive Ethernet (SOME/IP, DoIP, TLS), CAN/CAN-FD, and UDS (ISO 14229) security services. Prior embedded development experience with programming languages such as C, C++, Java, or Python. Prior role(s) in the automotive industry or a similarly complex, deadline-driven, and regulated field. Familiarity with the threat assessment (TARA) process and translating threat outputs into security requirements. What You’ll Bring Deep ownership instinct — you drive requirements and blocked items to closure rather than waiting for others. A pragmatic approach that balances security rigor against real supplier capability and vehicle program timing. Clear technical judgment on risk and how security requirements should be specified and implemented. Strong communication skills and a habit of packaging knowledge so teams can scale without depending on a single expert. A collaborative mindset that helps engineers build security early rather than reviewing from the outside. GM does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need GM immigration sponsorship now or in the future. This includes direct company sponsorship, entry of GM as the immigration employer of record on a government form, and any work authorization requiring a written submission or other immigration support from the company (e.g., H1-B, OPT, STEM OPT, CPT, TN, J-1, etc). This role is categorized as hybrid. This means the selected candidate is expected to report to a specific location at least 3 times a week {or other frequency dictated by their manager}. This job may be eligible for relocation benefits. About GMOur vision is a world with Zero Crashes, Zero Emissions and Zero Congestion and we embrace the responsibility to lead the change that will make our world better, safer and more equitable for all.Why Join UsWe believe we all must make a choice every day – individually and collectively – to drive meaningful change through our words, our deeds and our culture. Every day, we want every employee to feel they belong to one General Motors team.Benefits OverviewFrom day one, we're looking out for your well-being–at work and at home–so you can focus on realizing your ambitions. Learn how GM supports a rewarding career that rewards you personally by visiting Total Rewards resources.Non-Discrimination and Equal Employment Opportunities (U.S.)General Motors is committed to being a workplace that is not only free of unlawful discrimination, but one that genuinely fosters inclusion and belonging. We strongly believe that providing an inclusive workplace creates an environment in which our employees can thrive and develop better products for our customers.All employment decisions are made on a non-discriminatory basis without regard to sex, race, color, national origin, citizenship status, religion, age, disability, pregnancy or maternity status, sexual orientation, gender identity, status as a veteran or protected veteran, or any other similarly protected status in accordance with federal, state and local laws. We encourage interested candidates to review the key responsibilities and qualifications for each role and apply for any positions that match their skills and capabilities. Applicants in the recruitment process may be required, where applicable, to successfully complete a role-related assessment(s) and/or a pre-employment screening prior to beginning employment. To learn more, visit How we Hire.AccommodationsGeneral Motors offers opportunities to all job seekers including individuals with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, emailus or call us at View phone number on click.appcast.io. In your email, please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying.SummaryLocation: Warren, Michigan, United States of America; Milford, Michigan, United States of AmericaType: Full time