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# Linux Administrator

- **Company:** TEKSYSTEMS INC.
- **Location:** Dayton, OH, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Computer Networks, Software Debugging, Linux, Domain Name System (DNS), Github, HAProxy, Traceroute, Linux Kernel, Linux System Administration, OpenShift, Performance Tuning, Ping (Networking Utility), Red Hat Enterprise Linux, Ansible, Tcpdump, Diagnostic Tools, Load Balancing, Kubernetes Helm Charts, Gitlab-ci, Selinux, Kubernetes, Information Technology, Jenkins
- **Published:** October 12, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9235732/linux-administrator

## About the Role

* 7+ years of experience in Linux Administration
 * Experience with automation tools such as Ansible
 * Experience with STIG hardening, SELinux or FApolicyd, and managing secrets and certificates
 * Knowledge of IT networking and security concepts
 * Ability to use troubleshooting tools such as netstat, tcpdump, traceroute, and ping to isolate network problems
 * Ability to translate complex technical requirements into solutions for clients and engineers
 * TS/SCI clearance
 * HS diploma or GED
 * DoD 8570 IAT Level II Certification
Nice to Have Skills

 * Experience deploying and managing production Kubernetes clusters such as OpenShift, EKS, or RKE
 * Experience with Helm charts and managing persistent container storage interface (CSI) and container networking interface (CNI)
 * Experience integrating IaC and Ansible into pipelines such as GitLab CI, Jenkins, or GitHub Actions
 * Knowledge of IP tables and NFTables, DNS, load balancing, HAProxy, and namespace
 * Ability to conduct performance tuning, kernel patching, and debugging
 * Ability to optimize Linux kernels for container workloads such as tweaking sysctl for K8s
 * Bachelor's degree in Computer Science, Engineering, or a STEM field
 * Red Hat Certified Engineer (RHCE) or Linux Foundation Certified Engineer (LFCE) Certification