The Sr. DevSecOps Engineer will lead the design, implementation, and operation of secure, scalable cloud-native infrastructure, platforms, and CI/CD pipelines for mission-critical Department of Defense programs. Act as a technical advisor to government stakeholders, drive DevSecOps roadmaps, implement Zero Trust and compliance automation, mentor platform and engineering teams, and deliver repeatable, automated, auditable deployments across cloud and air-gapped/on-prem environments. Key Responsibilities: Architecture & Strategy: Design enterprise-scale DevSecOps and cloud-native architectures across AWS, Azure, GCP, and on-premise; define technical roadmaps; apply Zero Trust and defense-in-depth principles; lead architecture reviews and threat modeling. Platform & Infrastructure: Stand up and maintain secure infrastructure (cloud and on-premise air-gapped), including Kubernetes clusters and container platforms; oversee environment automation and reproducible provisioning. CI/CD & Pipelines: Architect and implement CI/CD and GitOps pipelines that integrate security scanning, compliance validation (RMF/NIST), automated testing, and continuous ATO/cATO workflows; design pipeline orchestration using tools such as GitLab CI, Jenkins, GitHub Actions, ArgoCD, and Flux. Infrastructure as Code (IaC) & Automation: Champion IaC and environment templatization (Terraform, Ansible, Kustomize, Helm, Jinja, etc.); automate provisioning, configuration management, and operational tasks. Security & Compliance: Integrate security controls into pipelines and platforms (secrets management, IAM, microsegmentation); ensure adherence to DoD security frameworks, RMF, and authorization processes; lead security architecture reviews. Operations & Upgrades: Maintain and upgrade production infrastructure and Kubernetes clusters; implement observability, monitoring, logging, and incident response practices. Stakeholder Engagement: Serve as technical liaison to program managers and senior leadership; present designs, roadmaps, and tradeoffs; assist with client onboarding and identify MVPs for delivery. Leadership & Mentorship: Provide technical guidance to DevSecOps, platform, and engineering teams; foster continuous improvement, documentation, and knowledge sharing. Documentation: Produce and maintain system design documentation, diagrams, runbooks, and briefings for leadership and customers. 
