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# Linux System Administrator

- **Company:** After School Matters, Inc.
- **Location:** Columbia, MD, United States
- **Experience:** Expert
- **Salary:** $168,000.0 - $195,000.0
- **Contract:** Permanent contract
- **Skills:** Kubernetes Security, Bash Shell, Configuration Management, Linux, DevOps, Distributed Data Store, Domain Name System (DNS), Monitoring of Systems, Python (Programming Language), Kernel-Based Virtual Machine, Network Troubleshooting, Log Analysis, Routing, Octopus Deploy, OpenShift, Performance Tuning, Red Hat Enterprise Linux, Ansible, Security Content Automation Protocol, Security Information and Event Management, Software Engineering, Transmission Control Protocol (TCP), Virtualization Technology, VMware VSphere, Software Vulnerability Management, Load Balancing, System Availability, Delivery Pipeline, Firewalls (Computer Science), Git, Containerization, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Rancher, Terraform, Oracle Cloud Infrastructure, Splunk, Software Version Control, Docker, Jenkins
- **Published:** October 13, 2026
- **Apply:** https://belaytechnologies.applytojob.com/apply/LrzD2qjmnt/Linux-System-Administrator?source=GS

## About the Role

Belay Technologies is seeking a Linux Systems Administrator / DevOps Engineer with 10+ years of experience and a technical degree to support secure, mission-critical environments. The ideal candidate will have extensive experience administering enterprise Linux systems, managing system performance and security, troubleshooting complex infrastructure issues, and deploying and maintaining Kubernetes clusters and containerized applications. Responsibilities include implementing security hardening and vulnerability remediation, managing container orchestration and high availability, and leveraging automation and Infrastructure as Code tools such as Ansible, Terraform, Git, Jenkins, and GitLab CI/CD to streamline infrastructure provisioning, configuration management, and deployment workflows., * 10+ years of professional experience in systems administration, infrastructure engineering, DevOps, platform engineering, software engineering or a closely related field.

 * Active TS/SCI clearance with Polygraph
 * Extensive hands-on experience administering Linux operating systems in enterprise or mission-critical environments.
 * Demonstrated experience deploying, operating, and troubleshooting Kubernetes clusters and containerized applications.
 * Strong knowledge of container technologies, including Docker, containerd, and OCI-compatible images.
 * Experience with scripting and automation using Bash, Python, or similar languages.
 * Proficiency with configuration management and Infrastructure as Code tools, such as Ansible and Terraform.
 * Experience with Git-based version control and CI/CD platforms.
 * Strong understanding of TCP/IP networking, DNS, routing, firewalls, load balancing, and Linux network troubleshooting.
 * Experience with system monitoring, log analysis, performance tuning, and root cause analysis.
 * Knowledge of Linux and container security, system hardening, vulnerability remediation, and access control.
 * Ability to work independently, manage competing priorities, and communicate technical issues effectively., * Experience working with Red Hat Enterprise Linux and Kubernetes distributions such as Red Hat OpenShift or Rancher Kubernetes.
 * Familiarity with GitOps tools such as Argo CD or Flux.
 * Experience with Helm, Kustomize, and Kubernetes operators.
 * Experience implementing DISA STIGs, Security Content Automation Protocol (SCAP) assessments, and vulnerability remediation workflows.
 * Familiarity with security monitoring tools such as Splunk and enterprise observability platforms.
 * Experience with virtualization platforms such as VMware vSphere or KVM.
 * Experience supporting disconnected, air-gapped, or restricted-network environments.
 * Knowledge of storage platforms, SAN/NAS, persistent storage, and distributed storage solutions.
 * Relevant certifications such as Red Hat Certified Engineer (RHCE), Certified Kubernetes Administrator (CKA), Certified Kubernetes Security Specialist (CKS), or comparable credentials.