Linux OS Engineer
$100,000–$130,000 year
On-siteMaryland, United States
Job Summary
Engineer, deploy, and administer RHEL/CentOS/Rocky and Ubuntu servers across dev/test/prod environments, implementing standard baselines, golden images, and immutable patterns. Build and maintain automation using Ansible, Bash, and Python to enforce configuration drift control, integrating policies with CI/CD workflows. Apply DoD STIG/hardening controls, remediate vulnerability scan findings, and validate FIPS, SELinux, and disk encryption configurations. Design logging/metrics/alerting stacks with actionable SLOs and troubleshoot OS, storage, and network performance issues using system profiling tools. Support clustering and HA patterns, document disaster recovery procedures, and provide Tier 3 escalation while participating in on-call rotations. Collaborate with cybersecurity, network, storage, and application teams to deliver resilient, auditable infrastructure meeting program SLAs and security directives.
Required Qualifications
- Active TS/SCI + CI Poly clearance
- 5–7 years of professional experience administering Linux in enterprise or government environments (or equivalent combination of education/experience suitable for mid level)
- One of the following DoD 8570/CS-NET-451 certifications: Security+ (CE), RHCSA/RHCE, CKA, ITIL® Foundation
- Strong proficiency with RHEL-family and Debian/Ubuntu administration, system services, and package managers (dnf/yum/apt)
- Hands-on with Ansible and scripting (Bash, Python) for automation and compliance
- Demonstrated experience applying STIG/hardening and working within secure change-controlled environments
- Solid troubleshooting across compute, network, and storage layers; familiarity with virtualization (VMware/KVM) and ticketing/ITSM workflows
- Ability to create and maintain SOPs, runbooks, and architecture diagrams supporting audits and operations
- U.S. Citizenship
- Must be able to lift up to 10 pounds
- Must be able to lift up to 25 pounds
- Must be able to lift up to 50 pounds
- Must comply with any vaccination requirements mandated by contract, applicable law or regulation
- Must agree that TekSynap Corporation may retain and use name, e-mail, and contact information for purposes related to employment consideration
- Must be available for non-standard shift
- Must be willing to travel 20%
Desired Qualifications
- Experience with RHEL Satellite/Foreman, Kickstart, IdM/FreeIPA/AD integration, and secrets management (e.g., HashiCorp Vault)
- Exposure to container runtimes (Podman/Docker), Kubernetes (RKE/AKS/Openshift), and hardened container images
- Infrastructure-as-Code (Terraform), cloud (AWS/Azure/Gov zones), and registry/artifact management
- Monitoring stacks (Prometheus/Grafana, ELK/OpenSearch) and SIEM integrations
- SSCP
- CySA+
- GSEC
- CASP+
- CISSP
- Red Hat Ansible Automation certification
- Terraform Associate
- Kubernetes certification
Additional Requirements
- U.S. Citizenship
- Active TS/SCI + CI Poly clearance
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