Senior Systems & Network Administrator (TS/SCI) - Hybrid

Peraton; Corridor North (MD); Hybrid; USD 104,000 - 166,000; Full time

Benefits offered by this job

25 days PTO

Bonus plan eligibility

Enhanced benefits coverage

Job summary

Peraton is seeking a Systems Administrator, Lead Associate to support and maintain enterprise network and end-user computing infrastructure in a hybrid Annapolis Junction location. The role covers both network switching and desktop administration, with responsibilities across VLANs, imaging, AD, and patching in a security-focused environment.

The ideal candidate brings TS/SCI with poly, +5 years of sysadmin experience, VDI expertise, and strong Windows administration skills.

Qualifications

• Active TS/SCI clearance with a current poly is required.
• BS in a technical discipline; 5 years of system administration experience (or 5 years added in lieu of BS).
• 1–2 years network administration with Cisco IOS-XE/NX-OS knowledge.
• 2+ years managing classified VDI/thin-client environments.
• 2+ years Windows 10/11 administration and troubleshooting.
• Hands-on PXE-based imaging/deployment experience.
• Proficiency with PuTTY, PowerShell, and Windows CLI.
• Experience with Active Directory user/group administration.
• Experience with SCCM/MECM and BigFix endpoint management.
• Familiarity with STIG/compliance and security baselines.
• Exposure to JIRA/ITSM ticketing systems.
• Basic firewall awareness (Cisco Firepower/ASA) and remote admin tools.

Responsibilities

• Configure, maintain, and troubleshoot Cisco switches (IOS-XE/NX-OS).
• Manage port security and MAC-based controls.
• Support TCP/IP, DHCP/DNS, and L2/L3 troubleshooting.
• Maintain enterprise VDI/thin-client infrastructure and imaging.
• Image endpoints via PXE and deploy with tooling.
• Administer Windows 10/11 endpoints and lifecycle support.
• Perform patch management and STIG/compliance remediations.
• Use PuTTY, PowerShell, and Windows CLI for automation.
• Support STE/STN environment and related procedures.
• Handle Active Directory accounts/groups and GPO basics.
• Document configurations and changes; adhere to standards.
• Deliver high-quality end-user support and ticket handling.
• Coordinate across teams for cross-functional dependencies.

Skills

TS/SCI clearance

Network administration

Cisco IOS-XE/NX-OS

VDI/Thin-client

Windows 10/11

PXE imaging

PuTTY/PowerShell/CLI

Active Directory

SCCM/MECM

BigFix

STIG/compliance

JIRAITSM

Firewall awareness

Remote administration

Education

Bachelor's degree in a technical discipline

Tools

Cisco IOS-XE

NX-OS

PXE deployment tooling

VDI platforms

Job description

Peraton is seeking a Systems Administrator, Lead Associate to support and maintain enterprise network and end-user computing infrastructure in a hybrid Annapolis Junction location. The role covers both network switching and desktop administration, with responsibilities across VLANs, imaging, AD, and patching in a security-focused environment.

The ideal candidate brings TS/SCI with poly, +5 years of sysadmin experience, VDI expertise, and strong Windows administration skills.