Design and build layered security controls across OS, Kubernetes, networks, identity, and CI/CD. Drive deployment of security enhancements and policy changes across multi-region infrastructure. Lead high-impact initiatives: checkpoint/model artifact protection and encryption, network isolation and segmentation, secrets and machine identity, policy-as-code, and secure storage/access pathways. Automate detection, prevention, and response with guardrails and paved paths. Embed security into developer workflows. Partner on risk assessments, threat modeling, and incident response. Champion a healthy security culture.