Senior Systems Admin – TS/SCI w/ Poly | Hybrid IT

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

Benefits offered by this job

25 days PTO

Bonus plan

Subsidized benefits

Job summary

Peraton is seeking a mid-level Network/Desktop Administrator to support enterprise network and end-user computing. This hybrid role blends switching, endpoint imaging, and Windows administration, with strong customer service for end users.

The candidate should handle VLANs, port security, VDI, imaging, and patching while following STIG baselines and security procedures. Collaboration across teams is essential.

Qualifications

• Bachelor's degree in a technical discipline with extensive system administration experience.
• Active TS/SCI w/Poly is required.
• 5+ years in mid-level network administration, with Cisco IOS-XE/NX-OS experience.
• 10+ years administering guarded VDI/thin-client environments.
• 10+ years' Windows 10/11 administration and troubleshooting.
• Strong customer service orientation and clear communication.
• Familiar with IAVA patching and security baselines.

Responsibilities

• Configure, maintain, and troubleshoot Cisco switches (IOS-XE/NX-OS).
• Manage VLANs, port security, and network fundamentals (TCP/IP, DHCP/DNS).
• Support VDI/thin-client infrastructure and endpoint provisioning.
• Image endpoints via PXE and deployment tooling; lifecycle support.
• Administer Windows endpoints, patching and remediation.
• Use PuTTY/PowerShell/CLI for diagnostics and automation.
• Perform Active Directory tasks and GPO awareness.
• Document configurations and changes to standards.

Skills

VLANs

Cisco IOS-XE

NX-OS

Port security

Windows 10/11

VDI

Imaging endpoints

PowerShell

PuTTY

Active Directory

SCCM/MECM

BigFix

IAVA patching

JIRA

Networking fundamentals

Remote administration

Education

Bachelor's degree in a technical discipline

15 years of system administration experience

Tools

PuTTY

PowerShell

Windows CMD

SCCM/MECM

BigFix

Job description

Peraton is seeking a mid-level Network/Desktop Administrator to support enterprise network and end-user computing. This hybrid role blends switching, endpoint imaging, and Windows administration, with strong customer service for end users.

The candidate should handle VLANs, port security, VDI, imaging, and patching while following STIG baselines and security procedures. Collaboration across teams is essential.