Sr. Systems Administrator

Responsibilities

• Manage Windows and Linux servers; maintain Hyper-V/VMware environments.
• Build, maintain, and secure Windows and Linux images, understanding key Linux variances (distros, package managers, service frameworks, SELinux/AppArmor, kernel modules).
• Support LAN/WAN networking, VPN, VLANs, DNS/DHCP, and general connectivity.
• Participate in maintenance windows and on-call rotations.
• Apply CIS/STIG hardening across Windows & Linux server and endpoint images.
• Lead OS patch cycles and vulnerability review, performing threat analysis using CVE feeds, vendor advisories, and exploit intelligence.
• Ensure alignment with CMMC, DFARS 252.204-7012, NIST 800-171, and internal security controls.
• Support audit preparation through proper documentation (configs, change records, test results).
• Administer Active Directory, Azure AD, Group Policy, and Microsoft 365 services.
• Enforce least-privilege, manage privileged accounts, and support access reviews.
• Manage service accounts, licensing, and lifecycle tasks (onboarding/offboarding).
• Serve as Tier 2/3 escalation for complex incidents and root-cause investigations.
• Maintain standard Windows/Linux endpoint images and patch baselines.
• Produce and maintain documentation (runbooks, SOPs, diagrams).
• Provide advanced support for Windows endpoints, A/V systems, VPN, and executive users.

Requirements

• 5+ years System Administration experience across Windows Server, AD, M365, and core networking.
• Hands-on experience with Hyper-V and/or VMware.
• Practical Linux administration experience including building, securing, and maintaining OS images across different distributions.
• Experience performing patch management and threat analysis (CVE evaluation, prioritization, and remediation planning).
• Strong troubleshooting, documentation skills, and customer-service mindset.
• PowerShell scripting; automation/orchestration tools (Ansible, Packer, etc.).
• Exposure to identity governance, DUO, Keeper, or endpoint management platforms.
• Familiarity with GCC High, FortiGate, Dynamics 365, or manufacturing/cleanroom environments.

Qualifications

• Commitment to Excellence.
• Attention to Detail.
• Pride in Workmanship.

Skills

• PowerShell scripting.
• Automation/orchestration tools (Ansible, Packer, etc.).
• Identity governance.
• DUO, Keeper, or endpoint management platforms.
• Exposure to GCC High, FortiGate, Dynamics 365, or manufacturing/cleanroom environments.

Benefits

• 4 weeks of Paid Time Off per year.
• 11 paid Holidays.
• Employee Stock Purchase Plan.
• Tuition Assistance Program.
• Health (ACA Gold Plan), Vision and Dental Care paid by employer.
• 100% for Employee and 75% for Dependents Paid Family Leave, Short and Long Term Disability paid by employer.
• 100% Competitive 401k with company match and immediate vesting.

Pay

• $80,000-$120,000 depending on experience.

Schedule

• Onsite position in Longmont, CO.