Secret Linux System Administrator

Required Skills & Experience

• Security+ or other DoD 8570 IAT Level II-compliant certification
• Active, in-scope DoD Secret clearance required to start
• 5-10+ years of Linux Systems Administration experience (RHEL 8/9)
• Experience installing, configuring, maintaining, and troubleshooting Linux servers and workstations
• Experience troubleshooting across Linux operating systems, networks, and hardware
• Experience with Linux package management, kernel/driver interactions, permissions, and file-system administration
• Experience performing system patching and post-patch validation
• Experience working collaboratively with software developers, engineers, and technical leads

Nice to Have Skills & Experience

• Familiarity with Ansible or similar automation/configuration-management tools
• Experience with VMware or other virtualization technologies
• Experience supporting containerized environments
• Experience with Kubernetes, OpenShift, Podman, and/or Docker
• DevOps engineering experience supporting software development or deployment environments
• Experience with vulnerability scanning and security compliance
• Experience managing OS/security patches, patch repositories, and antivirus tools
• Experience supporting software build and deployment environments
• Experience maintaining build scripts or installation media
• Experience with IDM/IPA and RSA
• Experience supporting network storage appliances or bulk storage systems
• Experience working within DoD, aerospace, missile defense, or other highly regulated technical environments

Job Description

Insight Global is seeking a Linux Systems Administrator to support a large defense and aerospace client in Colorado Springs, CO. This individual will be responsible for administering, maintaining, troubleshooting, and securing Linux-based systems across lab and development environments. The environment includes a mix of physical, virtualized, and containerized systems, and this person will work closely with software development, engineering, and production teams to maintain infrastructure and support development workflows. The role is primarily focused on Linux systems administration, with additional responsibilities supporting DevOps, automation, containerization, patching, and lab buildouts.

Responsibilities

• Administer, monitor, maintain, and troubleshoot Linux RHEL 8/9 systems across lab and development environments
• Install, configure, customize, and harden Linux servers and development workstations
• Support a combination of bare-metal, virtualized, and containerized environments
• Troubleshoot operating system, network, server, workstation, storage, and hardware issues
• Diagnose hardware failures and coordinate component repair or replacement
• Respond to high-priority system incidents and perform root-cause troubleshooting across OS, network, and hardware layers
• Perform Linux patching and post-patch system checkout to verify services are fully restored
• Manage Linux packages, kernel/driver interactions, user accounts, groups, file systems, and permissions
• Perform system performance tuning and ongoing Linux maintenance
• Use scripting and tools such as Ansible to automate system configuration and maintenance activities
• Support DevOps and development environments using technologies such as Kubernetes, SonarQube, Podman, Docker, and/or OpenShift
• Work directly with software development teams to troubleshoot build environments, development workflows, and OS-related issues
• Support lab infrastructure buildouts, storage systems, and development environments
• Maintain accurate system configurations, infrastructure inventories, procedures, and change documentation
• Coordinate planned and unplanned system work across engineering teams while adhering to program maintenance and lockdown windows

Pay Range: $98,000-170,000 annually. Exact compensation will vary based on several factors, including skills, experience, and education. Benefits are available on day one of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave as applicable by state law.

Experience Level The role may be considered at multiple experience levels depending on the candidate’s background:

• Level 3: Bachelor’s degree in STEM with 5+ years of related experience, Master’s degree with 3+ years, PhD with 1+ year, or 8+ years of relevant experience in lieu of a degree
• Level 4: Bachelor’s degree in STEM with 8+ years of related experience, Master’s degree with 6+ years, PhD with 4+ years, or 12+ years of relevant experience in lieu of a degree