In-Vehicle Security Architect: Secure Comm & Ethernet

General Motors; Milford Charter Township (MI); Hybrid; USD 120,000 - 180,000; Full time

Job summary

General Motors seeks a Senior Product Cybersecurity Engineer, Secure Product Architecture to design and own the security framework for in-vehicle communications, covering message authentication, in-vehicle firewalls, and Ethernet security. You translate threat assessments into actionable requirements for engineering and suppliers across current and future software-defined vehicle platforms.

You will lead security design reviews, align timelines with vehicle programs, and build scalable

Qualifications

• 6+ years of experience in product, embedded, or vehicle cybersecurity.
• Strong working knowledge of in-vehicle communications security, including message authentication, firewalls, and automotive Ethernet.
• 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.

Responsibilities

• 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.
• 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.

Skills

Security design ownership

In-vehicle communications security

Threat assessment translation

Security requirements authoring

Stakeholder alignment

Embedded security principles

Education

Bachelor’s or Master’s in CS/CE/EE/Cybersecurity

Tools

AUTOSAR SecOC

Freshness Value Management (FVM)

Automotive Ethernet (SOME/IP, DoIP, TLS)

CAN/CAN-FD security

UDS (ISO 14229)

C/C++, Java, Python

Job description

General Motors seeks a Senior Product Cybersecurity Engineer, Secure Product Architecture to design and own the security framework for in-vehicle communications, covering message authentication, in-vehicle firewalls, and Ethernet security. You translate threat assessments into actionable requirements for engineering and suppliers across current and future software-defined vehicle platforms.

You will lead security design reviews, align timelines with vehicle programs, and build scalable