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Peraton

Runs and secures technology for federal agencies

Systems Administrator – Lead Associate

System Administration +1Confirmed live in the last 24 hours
Full-timeAnnapolis Junction, MD, USAIn-person

About the Job

Requirements

  • An active TS/SCI security clearance with a current polygraph is required.
  • A bachelor's degree in a technical discipline and five years of system administration experience are required; five additional years of experience may substitute for a bachelor's degree.
  • One to two years of combined network administration experience, including working knowledge of Cisco switches on IOS-XE and NX-OS platforms, is required.
  • Two or more years of experience administering the customer's classified VDI/thin-client desktop platform are required.
  • Two or more years of Windows 10 and/or Windows 11 administration and troubleshooting experience are required.
  • Hands-on experience with PXE-based imaging and deployment is required.
  • Proficiency with PuTTY, PowerShell, and Windows command-line tools is required.
  • Experience with Active Directory user and group administration is required.
  • Experience with endpoint management platforms such as SCCM/MECM or BigFix is required.
  • Familiarity with security baselines and STIG compliance is required.
  • Exposure to the JIRA ticketing/ITSM system is required.
  • Basic firewall awareness and coordination experience, such as Cisco Firepower or ASA, is required.
  • Familiarity with remote administration tools is required.

Responsibilities

  • Configure, maintain, and troubleshoot Cisco switches running IOS-XE and NX-OS.
  • Implement and manage port security, including MAC-based controls and violation remediation.
  • Support enterprise network fundamentals, including TCP/IP, subnetting, DHCP/DNS behavior, and Layer 2/Layer 3 troubleshooting.
  • Support and help maintain VDI/thin-client infrastructure, including endpoint provisioning and connectivity troubleshooting.
  • Perform endpoint imaging and deployment using PXE boot and associated deployment tooling.
  • Administer Windows 10 and Windows 11 endpoints, including configuration, troubleshooting, and lifecycle support.
  • Execute patch management and remediate vulnerabilities in response to IAVAs, ensuring systems remain compliant with security baselines and STIGs.
  • Use command-line interfaces and administrative tools, including PuTTY, PowerShell, and Windows CMD, for configuration, diagnostics, and routine automation.
  • Support the STE/STN environment and associated operational procedures.
  • Perform Active Directory tasks such as account and group management, OU navigation, and basic Group Policy awareness.
  • Document configurations, procedures, and changes, and follow existing standards and conventions.
  • Provide customer service and end-user support, including ticket handling and clear communication with non-technical staff.
  • Coordinate across teams on cross-functional dependencies.

Desired Qualifications

  • Understanding of networking fundamentals, including VLANs, subnetting, TCP/IP, DHCP, DNS, and switching concepts.
  • Understanding of port security concepts and remediation.
  • Understanding of patch management processes and vulnerability remediation driven by IAVAs.
  • Understanding of structured cabling, patch panels, and physical connectivity.
  • Knowledge of basic scripting and automation for repetitive administrative tasks.

About the Company

Peraton

Runs and secures technology for federal agencies

Peraton builds and runs secure technology for American defense, intelligence, space, and civilian agencies, from military networks to satellite ground stations. In 2025, the Federal Aviation Administration chose it to manage the overhaul of the nation's air traffic control system, replacing copper wiring with fiber and upgrading radar and radios. Its engineers, many holding security clearances, run and defend agency networks and data centers, write mission software, and operate space and communications systems, and agencies pay for this work through multiyear contracts. Peraton was formed in 2017, when private-equity firm Veritas Capital bought Harris Corporation's government IT business, and is based in Reston, Virginia.

Company size
10,001+
Company stage
Grant
Total funding
$60M
Headquarters
Reston, VA
Founded
2017

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