Hands-on Senior Engineer on the Security Architecture team who owns end-to-end initiatives to design, implement, and operate security controls (IAM, secrets, endpoint hardening, network segmentation, detection/response). Performs security reviews, threat modeling, and risk assessments; investigates and triages complex security issues; partners with product and platform teams. Requires 5+ years in software/security engineering, experience with cloud platforms (AWS/GCP), CI/CD/GitOps/IaC practices, programming in Go or Python, and familiarity with container orchestration (Kubernetes), Terraform/Packer, and HashiCorp Vault.