Senior DevSecOps Engineer

The Opportunity

As part of the Clairvoyant program, you will build and support the backbone of a mission-critical, cloud-native ecosystem — a scalable software-hosting and data-dissemination platform designed to accelerate the deployment of advanced analytics. You will bridge complex mission requirements and high-performance automated infrastructure, owning everything from secure pipeline design to cloud resource optimization. As a DevOps / Infrastructure / DevSecOps Engineer on an AWS-based, Kubernetes-native environment, you will:

• Architect Resilience: Design and maintain scalable RKE2/Kubernetes infrastructure on AWS with high availability and fault tolerance.
• Orchestrate Delivery: Build and refine CI/CD pipelines using GitLab CI/CD, ArgoCD, Jenkins, and Helm for seamless code-to-cloud transitions.
• Secure the Stack: Integrate automated security scanning (Trivy, SonarQube) and enforce compliance with government security standards throughout the development lifecycle.
• Optimize Performance: Identify bottlenecks and engineer solutions across cloud and container environments, from cluster tuning to artifact management.

Responsibilities

• Develop features to automate, scale, test, and secure a Kubernetes-based infrastructure running on AWS with RKE2.
• Build, optimize, and maintain CI/CD pipelines using GitLab CI/CD, Jenkins, and ArgoCD, supporting automated build, test, scan, and deployment workflows.
• Author, template, and manage Helm charts for application and infrastructure deployment across multiple environments.
• Build and maintain hardened Docker container images, including STIG-compliant base images, optimized Dockerfiles, and integration with Harbor and CI/CD pipelines.
• Manage and scale RKE2 Kubernetes clusters, including workload scheduling, networking, RBAC, secrets management, and cluster lifecycle operations.
• Administer Harbor (container registry) and Nexus (artifact repository), ensuring availability, security, and pipeline integration.
• Integrate Trivy and SonarQube into pipelines; remediate findings in coordination with security stakeholders.
• Enhance performance monitoring; identify bottlenecks and optimize cloud infrastructure and resource utilization.
• Author Python and Bash automation scripts to reduce toil and support infrastructure lifecycle management.
• Maintain technical documentation, runbooks, and architecture diagrams.

Qualifications

• Current TS/SCI clearance with Polygraph.
• Bachelor's degree in Computer Science or related field, or equivalent experience.
• 3+ years (mid-level) or 6+ years (senior-level) in DevOps, Infrastructure, or DevSecOps in a cloud environment.
• Advanced proficiency in Python and/or Bash scripting for automation and operational support.
• Strong Linux/Unix command line proficiency, preferably on RHEL-based systems.
• Experience building and maintaining CI/CD pipelines using GitLab CI/CD, Jenkins, ArgoCD, and Helm.
• Strong proficiency with Docker — writing Dockerfiles, building hardened images, and integrating builds into pipelines.
• Hands-on Kubernetes experience — cluster operations, workload management, RBAC, networking, and troubleshooting.
• Familiarity with agile methodologies and ability to operate effectively within a distributed team.
• Ability to travel up to 5% of the time.

Desired Experience

• Experience with AWS services and cloud-native infrastructure patterns.
• Hands-on experience with Terraform for cloud resource provisioning and IaC.
• Experience with RKE2 or other enterprise Kubernetes distributions in air-gapped or restricted environments.
• Familiarity with Harbor, Nexus, Trivy, and SonarQube in a pipeline context.
• Experience with Cilium for Kubernetes network policy and cluster networking.
• Experience with Packer or Ansible for image and configuration management.
• Relevant certifications: CKA/CKAD/CKS, AWS DevOps Professional, or CompTIA Security+

What You Can Expect

• A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose – to ensure the safety of our nation.
• An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
• A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay

The proposed salary range for this position is $113,200 - $237,800.