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Principal Systems Administrator - TS​/SCI

Job in San Diego, San Diego County, California, 92189, USA
Listing for: Parsons
Full Time position
Listed on 2026-10-17
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 134000 - 241000 USD Yearly USD 134000.00 241000.00 YEAR
Job Description & How to Apply Below
Job Description:

Parsons has emerged as a leader in the development of cutting-edge solutions for the Department of Defense and Intelligence Community. Our tremendous success can be attributed to our people and our priorities. We hire the best. We make them a priority, and we never lose focus on the mission. It's why we're here. We have built this cultural legacy by working closely with analysts and operators to understand their needs and delivering meaningful value through innovative, cost effective and intuitive software solutions.

Parsons creates game-changing space solutions by teaming highly respected subject matter experts with brilliant technologists.

What You'll be Doing :
  • Manage and maintain system IT environments to ensure system availability and security compliance
  • Installing, configuring, and updating system software and operating systems
  • Implementing security measures to meet security compliance
  • Managing user accounts and permissions
  • Troubleshooting/ resolving system issues to minimize downtime
Required Qualifications:
  • Must have a Top-Secret clearance with SCI and ability to pass a Counterintelligence polygraph
  • Minimum of 10 years or more of professional experience as a systems administrator for Navy software systems
  • Master's degree, or an authorized substitution for a bachelor's degree plus four additional years of relevant experience
  • Experience with Linux-based operating systems
  • Experience with virtualization environments, including VMware, Hyper-V, Proxmox
  • Experience troubleshooting network connections
  • Experience troubleshooting system configuration issues
  • CompTIA Security+ certification.
  • PRIVAC
  • Excellent written and verbal communication skills and ability to work in a collaborative/distributed team environment
  • Proficiency with the Microsoft Office suite
  • Demonstrated experience with Cybersecurity best practices
  • Experience working in secured or classified operating environments
Desired

Qualifications:
  • An active TS/SCI w/ CI Poly is preferred
  • Experience supporting Navy programs, NAVWAR, NIWC Pacific, NIWC Atlantic
Security Clearance Requirement:

An active Top Secret SCI security clearance is required for this position.

This position is part of our Federal Solutions team.

The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace.

Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.

Salary Range: $ - $

This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.

Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.

Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to  .

About Us

Parsons is a digitally enabled solutions provider focused on the defense, security, and infrastructure markets. With nearly 75 years of experience, Parsons is uniquely qualified to deliver cyber/converged security, technology-based intellectual property, and other innovative services to federal, regional, and local government agencies, as well as to private industrial customers worldwide.

Parsons is an equal opportunity, drug-free employer committed to diversity in the workplace. Minority/Female/Disabled/Protected Veteran/LGBTQ+.

For more about Parsons, visit  and follow us on Facebook, Twitter, Linked In, and You Tube.

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