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Peraton

Runs and secures technology for federal agencies

Mid-Level Infrastructure Systems Administrator

System AdministrationPosted on Nov 12
Full-timeChantilly, VA, USA

About the Job

Requirements

  • An associate’s degree in engineering or a related field and at least 7 years of relevant experience, or a bachelor’s degree in engineering or a related field and at least 5 years of relevant experience, or a master’s degree in engineering or a related field and at least 3 years of relevant experience; an additional four years of relevant experience may be substituted for a bachelor’s degree.
  • At least 3 years of experience in a System Administration role.
  • Meet DoD 8140 foundational qualifications for the System Administrator work role at the Intermediate or Advanced proficiency level.
  • Experience with system installation, patching, testing, networked-service and file-system configuration, basic scripting, and authentication.
  • Red Hat Enterprise Linux 9.x or later administration, including building systems from bare metal, software package installation, operating-system and application troubleshooting, and security hardening.
  • Experience applying patches, updates, and hotfixes using Red Hat Satellite, YUM, or DNF.
  • Experience ensuring software versions remain consistent and current across environments and systems.
  • Experience diagnosing and resolving system issues and analyzing system logs using journalctl, dmesg, or /var/log.
  • Experience collaborating with Red Hat support or similar vendors on complex issues.
  • Direct experience working with Windows and Linux operating systems.
  • Ability to maintain detailed system documentation in Confluence, Git Wiki, or similar tools.
  • Ability to perform or analyze regular vulnerability scans and address findings.

Responsibilities

  • Support the build-out of a cloud-based classified environment with Kubernetes clusters, artifact repositories, and supporting CI/CD infrastructure.
  • Manage operating-system configurations, system documentation, performance tuning, software installations and updates, system hardening, and storage allocation.
  • Monitor and maintain mission-critical, highly available, high-performance networked systems.
  • Work with other engineering teams to improve platforms and simplify architecture and processes.
  • Monitor and manage system resources to maintain efficiency.
  • Provide development support for problem identification, diagnosis, and resolution.

Desired Qualifications

  • Current or active certification meeting DoD 8140 foundational qualifications for the System Administrator work role at the Intermediate or Advanced proficiency level, such as Security+, Cloud+, SSCP, or CASP+.
  • Experience with virtualization or cloud-based technologies such as OpenStack, Docker containers, Ansible, or Heat templates.
  • Familiarity with Red Hat tools such as RH Satellite, RH OpenStack, or RH OpenShift.
  • Experience configuring Red Hat High Availability clusters for critical services.
  • Experience managing load balancing and failover systems.
  • Ability to communicate confidently, concisely, and accurately in writing and orally.
  • Interpersonal and collaboration skills for working with management, the customer, and DoD tenants.
  • Ability to work in a detail- and process-oriented manner, multitask, and work with minimal supervision.

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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