Senior Linux Systems Administrator - Cybersecurity & Infra

Insight Global; Longmont (CO); On-site; USD 65,000 - 90,000; Full time

Job summary

Insight Global is seeking a Systems Administrator for a defense technology company in Longmont, CO. The role focuses on Linux and Windows administration, server and virtualization management, and supporting a high-security IT infrastructure.

You will contribute to cybersecurity operations, vulnerability management, and system hardening in a Linux-focused environment, with hands-on exposure to networking and security tasks.

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.

Responsibilities

• Provide Level 2 support across Linux and Windows systems.
• Manage servers, virtualization, networking, and overall IT infrastructure.
• Contribute heavily to cybersecurity operations.

Skills

Linux administration

Windows administration

Networking

Cybersecurity operations

Vulnerability management

System hardening

Education

Associate's degree

Bachelor's degree preferred

Tools

Palo Alto firewalls

Job description

Insight Global is seeking a Systems Administrator for a defense technology company in Longmont, CO. The role focuses on Linux and Windows administration, server and virtualization management, and supporting a high-security IT infrastructure.

You will contribute to cybersecurity operations, vulnerability management, and system hardening in a Linux-focused environment, with hands-on exposure to networking and security tasks.