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Linux Systems Administrator

Lexington Park, MD, United StatesFull-timePosted Oct 23, 2026

Job description

ABOUT SITEC

SITEC is an employee and customer focused Information Technology and Professional Services Firm specializing in design, development, and delivery of state-of-the-art technology solutions, as well as cybersecurity, software and systems engineering services.

SUMMARY

  • Container Integration: Utilize familiarity with containerization concepts to support application deployment. Assist with the management of container orchestration tools such as Kubernetes or Docker Swarm.
  • Automation & Scripting: Apply working knowledge of Ansible and other scripting tools to automate routine maintenance, server builds, and patching for optimum performance.
  • Development Support: Work within an Agile scrum methodology to provide infrastructure support for software development teams. Help maintain CI/CD pipelines for containerized applications.
  • Systems Maintenance: Install, configure, and manage Linux operating systems (Red Hat) and related toolsets.
  • Security & Compliance: Perform continuous monitoring, scanning, and hardening of systems to ensure they remain compliant with NAVAIR and DISA policies. Execute DoD STIG applications and other cyber compliancy actions.
  • Documentation & Operations: Maintain a robust knowledge base including system descriptions, procedures, and event logs. Respond promptly to system failures to ensure high availability for applications

JOB QUALIFICATIONS

  • Experience: 5+ years of hands-on experience working with UNIX/Linux and Windows.
  • Technical Proficiency: Experience with the build, maintenance, and troubleshooting of Linux Servers (Red Hat, CentOS).
  • Compliance: Must be DoD 8140 & 5239 compliant (Security+ certified and OS certificate/certification).
  • Cybersecurity: Experience in DoD Information Assurance/Cyber policy, specifically implementing STIGs and system hardening.
  • Clearance: Active Secret Clearance is required. Must have the ability to obtain a Top-Secret clearance.
  • Citizenship: Must be a US Citizen.

Additional Skills (Bonus Points For):

  • Experience with VMware Tanzu
  • Experience with CI/CD pipelines for containerized applications.
  • Experience with Ansible

Description copied from Mysitec's careers page. Read the full posting before you apply.

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