Linux Systems Administrator

Job Locations US-VA-Herndon | US-MD-Riverdale | US-DC-Washington
Requisition ID
Position Category
Top Secret/SCI w/Poly
Space & Intelligence


Join Peraton's National Programs Business Intelligence Systems & Applications Operating Unit as a Linux Systems Administrator and become an integral part of our team supporting the SITE III BES contract. This role offers a unique opportunity to work on a critical project orchestrating, sustaining, and evolving a suite of applications that play a pivotal role in the Defense Intelligence Agency's global workforce administration.


As a valued member of our team, you will:


Ensure High Availability:

  • Take charge of maintaining systems at peak performance, swiftly resolving any issues, and responding to customer inquiries and tickets promptly.

System Monitoring and Patching:

  • Conduct daily system monitoring to ensure smooth operations and execute monthly software patching activities.

Troubleshooting Expertise:

  • Identify and address network and application performance issues, providing expert recommendations for resolution.

Off-Hours Support:

  • Be prepared to tackle system issues and provide on-site support during off-hours if necessary, ensuring uninterrupted service.

Security Implementation:

  • Implement security measures, including Security Technical Implementation Guide (STIG) compliance and patch management.


  • Collaborate closely with government clients, project leads, Information Systems Security Officers (ISSOs), application vendors, and end-users to drive effective solutions.


  • Play a crucial role in creating and updating documentation, making complex system configurations easily understandable. This includes daily standard operating procedures (SOPs), Security Test Procedures (STPs), Traceability Matrix (SCTM), System Install Procedures (SIPs), System Administration Guides (SAGs), System User Manuals (SUMs), and Interface Control Documents (ICDs).


At Peraton, we're committed to delivering excellence through best practices in architecture design, data science, cloud services, DevSecOps, and platform integration. Join us in shaping the future of enterprise business systems, systems integration, and backend business process workflows. If you're an experienced Linux Systems Administrator looking to make a significant impact in a dynamic environment, we encourage you to apply and be part of our team dedicated to innovation and continuous improvement. Your skills and expertise will be instrumental in supporting critical administrative services for the Defense Intelligence Agency's global workforce.


Minimum of 8 years with BS/BA; Minimum of 6 years with MS/MA; Minimum of 3 years with PhD


Required Qualifications:

  • TS/SCI clearance adjudication or ability to obtain SCI and pass a poly
  • Must have a Bachelor’s degree in a technical field of study and 8 or more years of relevant experience. Additional
  • 4 years experience may be considered in lieu of degree.
  • A minimum 8 years of experience with systems administration
  • 5+ years Linux administration w/scripting experience required
  • Active Security+ (DoD 8570 Baseline certification for IAT Lvl 2)
  • Experience with implementation of Security Technical Implementation Guide (STIG) and
  • Experience performing routine patching
  • Experience installing and configuring software applications
  • Experience in performance tuning/troubleshooting, identifying/resolving contention in CPU, memory, networking, disk I/O, etc.
  • Experience maintaining system documentation including reading and creating network architecture diagrams


Desired Qualifications: 

  • Experience with Microsoft Windows Operating System
  • Experience maintaining system documentation including reading and creating network architecture diagrams
  • Familiar withTomcat 8.5 or higher
  • Familiar with Mongo database
  • Familiar with Amazon Web Services (AWS)/Cloud environment


Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and participation in an attractive bonus plan

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$112,000 - $179,000. This represents the typical salary range for this position based on experience and other factors.


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