Senior Systems Administrator, TS/SCI w/Poly

This is a hybrid role combining hands-on switching and network support with desktop/endpoint administration. The ideal candidate is comfortable working across the stack — from configuring VLANs and port security on Cisco switches to imaging endpoints and troubleshooting Windows 10/11 clients — while delivering responsive, professional customer support to end users.

What You Will Do

Configure, maintain, and troubleshoot Cisco switches running IOS-XE and NX-OS, implement and manage port security, support enterprise network fundamentals, support and help maintain VDI / thin-client infrastructure, perform endpoint imaging and deployment, administer Windows 10 and Windows 11 endpoints, execute patch management, and use CLI and administrative tooling.

Why It Might Be a Fit

The ideal candidate is comfortable working independently on routine tasks and escalating appropriately on complex issues, has a solid grasp of networking fundamentals, and has experience with endpoint management platforms, security baselines, and STIG compliance.

Requirements

• Bachelors degree in a technical discipline
• 10 years of system administration experience
• Active TS/SCI w/Poly
• 3–5 years of combined experience in network administration
• Solid grasp of networking fundamentals
• Understanding port security concepts and remediation
• 5+ years experience administering the customer’s classified VDI / thin-client desktop platform
• 5+ years experience Windows 10 and/or Windows 11 administration and troubleshooting
• Hands-on experience with PXE-based imaging/deployment
• Proficiency with PuTTY, PowerShell, and Windows command-line tools
• Active Directory user/group administration experience
• Understanding of patch management processes and vulnerability remediation (IAVA-driven)
• Strong customer service orientation and clear written/verbal communication
• Experience with endpoint management platforms (SCCM/MECM, BigFix)
• Familiarity with security baselines and STIG compliance
• Exposure to ticketing/ITSM systems JIRA
• Basic firewall awareness and coordination experience (e.g., Cisco Firepower/ASA)
• Familiarity with remote administration tools
• Understanding of structured cabling, patch panels, and physical connectivity
• Basic scripting/automation for repetitive administrative tasks

Benefits

• Heavily subsidized employee benefits coverage for you and your dependents
• 25 days of PTO accrued annually up to a generous PTO cap
• Eligibility to participate in an attractive bonus plan