Principal Security Software Engineer, PKI and Secrets Management

Job Description The Role The Principal Security Software Engineer defines and leads Cyber Security strategy for new technology, highly complex features, or significant improvements for current, new, or major programs. Provides technical leadership to execution teams for development and integration. Stays abreast of new security technology and competitive products and defines GM direction. Provide, communicate, and support common best practices among the Cyber Security community. Performs other related duties as assigned. Actively participates in hiring, development of technical questionnaires, resume reviews and performs interviews. Participates in projects eligible for patent application. What You'll Do: • Design, build, and maintain security-focused software components, services, and tools used across GM’s application ecosystem.  • Develop automation frameworks and internal platforms that make it easy for product teams to adopt secure patterns (e.g., identity, authorization, secrets management, logging).  • Integrate security controls and checks into CI/CD pipelines, build systems, and cloud-native deployment workflows.  • Architect and implement resilient, scalable security services and APIs (e.g., authentication, authorization, policy evaluation, event ingestion).  • Collaborate with application, infrastructure, and platform engineering teams to embed security requirements into system and service designs.  • Perform secure code reviews, threat modeling, and design reviews to identify and remediate vulnerabilities early in the SDLC.  • Build and maintain systems for security telemetry: logging, metrics, and alerting that support detection, triage, and incident response.  • Contribute to incident response and post-incident reviews as an engineering owner for security services and tooling.  • Stay current with emerging security threats, vulnerabilities, and technologies, and translate them into concrete engineering requirements, patterns, and roadmaps.  • Provide technical mentorship on secure coding, design patterns, and security architecture to other software engineers.  Your Skills & Abilities (Required Qualifications): • Bachelor’s degree or higher in Computer Science, Software Engineering, Cybersecurity, or a related technical field (or equivalent practical experience).  • 7+ years of experience as a software engineer building and owning production systems or in-house applications.  • Advanced proficiency in at least one modern programming language (for example: Python, Go, Java, or C++) with a strong understanding of software engineering fundamentals (data structures, algorithms, design patterns).  • Experience using AI-assisted development tools (for example, GitHub Copilot, Cursor, or similar) as part of day-to-day engineering workflows.  • Experience designing, implementing, and operating services on a major cloud platform (AWS, Azure, or GCP), including use of managed services and infrastructure-as-code.  • Hands-on experience with containerization and orchestration technologies (e.g., Docker, Kubernetes).  • Solid understanding of core security concepts as applied to software engineering, including:  • PKI including cert issuance, management. • Encryption in transit and at rest, key/secrets management.  • Secure coding practices, input validation, and common vulnerability classes (e.g., injection, XSS, CSRF, insecure direct object references).  • Experience partnering with security and audit/compliance teams and translating security requirements into engineering work.  • Proven ability to plan and manage work in an Agile environment, taking ownership of features and services from design through production.  • Strong written and verbal communication skills, with the ability to explain identity a