Systems Administrator (Container Platforms)

About the role

CACI is hiring a full-time Systems Administrator in Springfield to administer, operate, troubleshoot and secure the IT infrastructure supporting containerized applications. The role covers container runtimes, orchestration platforms, cluster networking, persistent storage and related security controls, and requires a TS/SCI clearance.

Key responsibilities

• Diagnose and fix problems in the container environment, including pod/node failures, resource constraints, CNI/overlay networking issues, persistent volume problems and control-plane issues, and plan corrective actions.
• Corrective maintenance: isolate and restore failed services, nodes or cluster components.
• Perfective maintenance: optimize cluster performance, resource allocation, autoscaling and observability.
• Adaptive maintenance: update configurations, perform upgrades and adapt to new security or infrastructure requirements.
• Manage container lifecycle operations (images, deployments, rollouts, scaling) and the underlying container-runtime infrastructure.
• Create and maintain as-is documentation, including architecture diagrams of clusters, namespaces, workloads, services, ingress, storage classes and networking.
• Maintain active security authorizations (A&A) and Body of Evidence artifacts, implement STIGs, CIS Kubernetes Benchmarks and vendor hardening guides, and integrate with enterprise security services using tools such as XACTA 360, Service+, CPT and SWAP.
• Support build, test and deployment of container images, Helm charts and infrastructure configurations through enterprise, government-managed CI/CD pipelines, focusing on platform operations, registry management and orchestration.

Required profile

• Bachelor's degree in Computer Science, Information Systems, Engineering or a related technical discipline.
• At least six years of system administration experience.
• Experience with container technologies (Docker, Kubernetes) and preferably AWS (EKS) or a comparable platform.
• CompTIA Security+ or the ability to obtain it within 90 days.
• Active TS/SCI clearance with the ability to obtain and maintain a polygraph.

Required skills

• Docker and Kubernetes
• Preferred: Helm, GitOps, CI/CD pipelines, container security (image scanning, network policies, CIS benchmarks)
• Preferred: prior experience supporting A&A processes in classified DoD/IC environments

What we offer

• Proposed pay range of $75,200-$158,100, depending on location, experience and skills.
• Healthcare, wellness, financial, retirement, family support, continuing education and time-off benefits.
• A flexible time-off benefit and access to learning resources.