Systems Administrator - Springfield, VA (TS/SCI)
About The Position
The Systems Administrator is responsible for administering, operating, troubleshooting, and securing IT infrastructure that supports containerized applications. The role covers container runtimes, orchestration platforms, cluster networking, persistent storage, and related security controls. The administrator uses systems analysis to diagnose and resolve issues affecting workloads, nodes, storage, and connectivity, while ensuring environment availability, performance, and integrity. The position includes applying security patches, operating-system and Kubernetes upgrades, and container-image updates. It also supports new container-platform infrastructure projects and maintains accurate configuration documentation. The role focuses on platform operations, image and registry management, and orchestration rather than application-code development.
Requirements
- Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related technical or scientific discipline.
- At least six years of system administration experience.
- Experience with container technologies such as Docker and Kubernetes, and preferably AWS (EKS or equivalent) or comparable cloud/on-premises container platforms.
- CompTIA Security+ certification or ability to obtain it within 90 days.
- Active/current TS/SCI clearance and ability to obtain and maintain a polygraph.
Nice To Haves
- Experience with Helm or similar packaging tools.
- Container security knowledge, including image scanning, network policies, runtime protection, and CIS benchmarks.
- GitOps experience and CI/CD pipelines for container deployments.
- Prior experience in classified DoD/IC environments supporting A&A processes.
Responsibilities
- Provide infrastructure and platform support for containerized applications.
- Identify problems in container environments, diagnose root causes such as pod or node failures, resource constraints, networking issues, persistent-volume problems, and control-plane issues, and develop corrective-action plans.
- Isolate and restore failed containerized services, nodes, or cluster components.
- Optimize cluster performance, resource allocation, autoscaling, and observability.
- Update configurations, perform version upgrades, adapt to security or infrastructure requirements, and support platform changes while preserving workload functionality.
- Manage container lifecycle operations, including image management, deployments, rollouts, and scaling, as well as the underlying container-runtime infrastructure.
- Create and maintain as-is documentation, including high-level architecture diagrams of clusters, namespaces, workloads, services, ingress, storage classes, networking, integration points, and associated system requirements.
- Support maintenance of active security authorizations (A&A) and Body of Evidence (BoE) artifacts, including POAMs, control implementations, and test plans.
- Implement applicable STIGs, CIS Kubernetes Benchmarks, and vendor hardening guides, and ensure timely patching of nodes, container images, and related components.
- Integrate with enterprise security services and use required tools such as XACTA 360, Service+, CPT, and SWAP.
- Support the build, test, and deployment of container images, Helm chart manifests, and infrastructure configurations through enterprise or government-managed CI/CD pipelines where applicable.
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What This Job Offers
Job Type
Full-time
