Senior Systems Admin – TS/SCI w/Poly (Hybrid)

Peraton; Corridor North (MD); Hybrid; USD 146,000 - 234,000; Full time

Benefits offered by this job

25 days PTO

Bonus plan

Job summary

Peraton is seeking a Senior Systems Administrator (TS/SCI w/Poly) in Annapolis Junction, MD. This hybrid role combines hands-on network switching with desktop/endpoint administration, including imaging, Windows 10/11 support, and security baselines.

You will work across the stack and coordinate with cross-functional teams to deliver reliable end-user computing and secure infrastructure. The ideal candidate has 10+ years in Windows administration, 5+ years in network administration with Cisco,

Qualifications

• Active TS/SCI w/Poly clearance required.
• 5+ years in network administration with Cisco IOS-XE/NX-OS knowledge.
• 10+ years administering VDI/thin-client desktop platforms.
• 10+ years in Windows 10/11 administration and troubleshooting.
• Experience with patch management and vulnerability remediation (IAVA).

Responsibilities

• Configure, maintain, and troubleshoot Cisco switches (IOS-XE/NX-OS).
• Manage port security, MAC-based controls, and remediation.
• Support TCP/IP, DHCP/DNS, VLANs, and L2/L3 troubleshooting.
• Maintain VDI/thin-client infrastructure and endpoint provisioning.
• Image endpoints via PXE and related deployment tooling.
• Administer Windows endpoints and lifecycle management.
• Patch management and remediation per security baselines.

Skills

Network administration

Cisco IOS-XE

NX-OS

Windows administration

PowerShell

PuTTY

Active Directory

VDI/Thin-client

SCCM/MECM

BigFix

JIRA/ITSM

Documentation

Customer service

Education

Bachelor's degree in a technical discipline

15 years of system administration experience

Tools

Cisco IOS-XE

NX-OS

PXE imaging

PuTTY

PowerShell

Windows CMD

SCCM/MECM

BigFix

JIRA

Job description

Peraton is seeking a Senior Systems Administrator (TS/SCI w/Poly) in Annapolis Junction, MD. This hybrid role combines hands-on network switching with desktop/endpoint administration, including imaging, Windows 10/11 support, and security baselines.

You will work across the stack and coordinate with cross-functional teams to deliver reliable end-user computing and secure infrastructure. The ideal candidate has 10+ years in Windows administration, 5+ years in network administration with Cisco,