Linux System Administrator (TS/SCI with CI Poly Required)

DeNOVO Solutions • Aurora, CO

2d • Onsite

About The Position

DeNOVO Solutions is seeking an experienced Linux System Administrator to support the administration, maintenance, and modernization of mission-critical infrastructure supporting our EOS Team. This position requires a strong background in Red Hat Enterprise Linux (RHEL), system administration, infrastructure automation, and troubleshooting within secure government environments. You'll collaborate with engineers and technical teams to maintain reliable systems, improve operational efficiency, and support national security missions.

Requirements

• Ten (10) or more years of professional experience in Linux systems administration, infrastructure engineering, or related technical environments.
• Strong experience administering, configuring, and troubleshooting Linux systems, including RHEL.
• Knowledge of Ansible playbooks and Infrastructure as Code (IaC).
• Experience supporting enterprise infrastructure, system deployments, and integration activities.
• Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field, or equivalent professional experience.
• Active CompTIA Security+ certification required.
• Active TS/SCI with CI Polygraph.

Nice To Haves

• Experience with Bash, Python, Perl scripting.
• Experience with VMware, Dell Servers, SAN Storage, Networking.
• Experience with DISA SCAP, STIGViewer, System Hardening.
• Experience with GitLab CI/CD, Jenkins.

Responsibilities

• Install, configure, maintain, and troubleshoot Red Hat Enterprise Linux (RHEL) systems and supporting infrastructure.
• Utilize Ansible, Infrastructure as Code (IaC), and scripting to automate deployments and improve system management.
• Maintain servers, network devices, and enterprise infrastructure while supporting virtualization and system integration.
• Support Linux system hardening, vulnerability remediation, and government security compliance requirements.
• Resolve escalated technical issues, monitor system performance, and support software testing and operational acceptance.
• Mentor team members, maintain technical documentation, and assist engineers with deployments and integration efforts.

Benefits

• Medical, Dental, and Vision Premiums 100% Employer Paid for you and your legal dependents or plus up, cost split plan.
• 401k with 6% Match.
• 11 Paid Federal Holidays.
• 120 hours of Paid Time Off (PTO).
• Company Outings and Trips.
• Tuition Reimbursement, Skillset Training, and New/Renewed Certification assistance.
• HomeFundIt Company Down Payment Match – Employer match towards the down payment of buying a new home.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior