TS/SCI Container Platform Systems Administrator

CACI International; Town of Springfield (WI); On-site; USD 87,000 - 182,000; Full time

Job summary

CACI International is seeking a Systems Administrator/Tester to manage containerized workloads, runtimes, and security controls. The role includes troubleshooting, upgrades, and documentation to ensure availability, performance, and integrity of the IT environment.

Ideal candidates will have TS/SCI clearance, 6+ years in system administration, experience with Docker/Kubernetes, AWS/EKS, and security certifications, plus familiarity with government CI/CD pipelines and security authorizations.

Qualifications

• Bachelor’s Degree in Computer Science, Information Systems, Engineering, or a related technical/scientific discipline.
• Minimum of six (6) years of system administration experience. Experience with container technologies (Docker/container, Kubernetes) and preferably AWS (EKS or equivalent) or comparable cloud/on-premises container platforms.
• CompTIA Security+ or the ability to obtain within 90 days

Responsibilities

• Corrective maintenance: Isolate and restore failed containerized services, nodes, or cluster components.
• Perfective maintenance: Optimize cluster performance, resource allocation, autoscaling, and observability.
• Adaptive maintenance: Update configurations, perform version upgrades, adapt to new security or infrastructure requirements, and support platform changes while preserving workload functionality.
• Manage container lifecycle operations (image management, deployments, rollouts, scaling) and the underlying container-runtime infrastructure.
• Create and maintain as-is documentation, including high-level architecture diagrams of the containerized environment (clusters, namespaces, workloads, services, ingress, storage classes, networking, and integration points) and associated system requirements.
• Support maintenance of active security authorizations (A&A) and Body of Evidence (BoE) artifacts (POAMs, control implementations, test plans). Implement applicable STIGs, CIS Kubernetes Benchmarks, vendor hardening guides for container platforms, and ensure timely patching of nodes, container images, and related components. Integrate with enterprise security services (ESS) and use required tools (XACTA 360, Service+, CPT, SWAP, etc.).
• Support build, test, and deployment of container images, Helm charts manifests, and infrastructure configurations via enterprise, government-managed CI/CD pipelines (where applicable). Focus is on platform operations, image/registry management, and orchestration—not application code develop
• Active/current TS/SCI clearance with the ability to obtain and maintain a Polygraph.

Skills

System administration

Docker/Kubernetes

AWS (EKS) experience

Security+ certification

DoD/IC experience

Education

Bachelor’s Degree in Computer Science, Information Systems, Engineering, or related

Tools

Docker

Kubernetes

AWS EKS

CI/CD tooling

Job description

CACI International is seeking a Systems Administrator/Tester to manage containerized workloads, runtimes, and security controls. The role includes troubleshooting, upgrades, and documentation to ensure availability, performance, and integrity of the IT environment.

Ideal candidates will have TS/SCI clearance, 6+ years in system administration, experience with Docker/Kubernetes, AWS/EKS, and security certifications, plus familiarity with government CI/CD pipelines and security authorizations.