Sr. Systems Administrator

Seeking a Systems Administrator to support a high-power defense technology company in a primarily Linux-focused infrastructure environment. This role provides Level 2 support across Linux and Windows systems , manages servers, virtualization, networking, and overall IT infrastructure, while also contributing heavily to cybersecurity operations . The ideal candidate has strong Linux administration experience, networking knowledge, and an interest in security, vulnerability management, and system hardening.

Qualifications

• 2+ years of Linux administration experience (Ubuntu preferred)
• Strong administration experience across both Linux and Windows environments
• Strong networking knowledge and troubleshooting skills
• Working knowledge of Palo Alto firewalls
• Experience supporting servers, infrastructure, and virtualized environments
• Associate's degree required; Bachelor's degree preferred
• Ability to work onsite 5 days per week in Longmont, CO

Why this Role

• Opportunity to work for a cutting-edge defense technology company developing advanced laser systems
• Strong blend of systems administration, networking, infrastructure, and cybersecurity responsibilities
• Hands-on exposure to vulnerability management, threat analysis, system hardening, and security operations
• Linux-focused environment with opportunities to deepen expertise in Ubuntu administration
• High-impact role supporting mission-critical engineering and technology environments
• Excellent growth opportunity for Jr. to Mid-Level Systems Administrators looking to expand into cybersecurity and infrastructure engineering roles