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Top Secret Linux System Administrator Jobs (NOW HIRING)

CACI

Linux System Administrator

Sarasota, FL · On-site

CACI has an immediate opening for a Linux Systems Administrator, with a Top Secret Clearance (TS/SCI) with polygraph for our corporate development/test network and fielded systems. CACIis seeking a ...

CACI

Linux System Administrator

Washington, DC · Hybrid

Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: None Type of ...

Vets Hired

Linux System Administrator

Clarksburg, WV · On-site

Job Summary The Linux System Administrator (Intermediate-Level) is responsible for operating ... Citizen with an active DoD Secret Clearance. * DoD 8570/8140 IAT Level II certification, such as ...

ManTech International

Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team ... Must have a current/active Top Secret/SCI with Polygraph Physical Requirements: * The person in ...

ManTech

Linux System Administrator

Laurel, MD

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team ... Must have a current/active Top Secret/SCI with Polygraph Physical Requirements: * The person in ...

Leidos

Linux System Administrator

Huntsville, AL · On-site

$92K - $166K/yr

... motivated Linux Systems Administrator to become a part of our team. In this role, you will be ... You must hold a current DoD Top Secret/SCI clearance with ability to obtain Polygraph. NOTE: Those ...

Leidos

Linux System Administrator

Huntsville, AL · On-site

$92K - $166K/yr

... motivated Linux Systems Administrator to become a part of our team. In this role, you will be ... You must hold a current DoD Top Secret/SCI clearance with ability to obtain Polygraph. NOTE: Those ...

MANTECH

Senior Linux System Administrator

Laurel, MD · On-site

ManTech seeks a motivated, career and customer-oriented Linux System Administrator to join our team ... Must have a current/active Top Secret/SCI with Polygraph Physical Requirements: * The person in ...

Zachary Piper Solutions

$115K/yr

Active Secret Security Clearance. Compensation for the Windows & Linux System Administrator include: Salary: $115,000 depending on experience Full Benefits Package: PTO, Paid Holidays, Medical ...

Leidos

Linux System Administrator

Huntsville, AL · On-site

$92K - $166K/yr

... motivated Linux Systems Administrator to become a part of our team. In this role, you will be ... You must hold a current DoD Top Secret/SCI clearance with ability to obtain Polygraph. NOTE: Those ...

MANTECH

Senior Linux System Administrator

Laurel, MD · On-site

ManTech seeks a motivated, career and customer-oriented Linux System Administrator to join our team ... Must have a current/active Top Secret/SCI with Polygraph Physical Requirements: * The person in ...

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Top Secret Linux System Administrator information

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How much do top secret linux system administrator jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for top secret linux system administrator in the United States is $51.96, according to ZipRecruiter salary data. Most workers in this role earn between $41.11 and $62.50 per hour, depending on experience, location, and employer.

What are popular job titles related to Top Secret Linux System Administrator jobs?

For Top Secret Linux System Administrator jobs, the most frequently searched job titles are:

Infographic showing various Top Secret Linux System Administrator job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 12% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $108,079 per year, or $52 per hour.

Linux System Administrator

Springfield, VA

Obscurity Labs
Network Security • 11 - 50 employees
Learn more about Obscurity Labsexternal

Full-time

Re-posted 10 days ago

Job description

As a Linux Systems Engineer and Linux Systems Administrator on a DevSecOps program, you'll have the opportunity to deploy and integrate new applications into our virtualized domain by using infrastructure as code to build new hosts, deploy via remote management / PCoIP, update permissions and policies to onboard new users and service accounts, troubleshoot defects, and maintain the system's integrity by applying frequent updates and rigorous health monitoring. This position may also require travel to support hardware deployments at customer sites and on-call hours to meet system availability requirements in our service level agreement.

Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems, and information technology related responsibilities including design, development, and analysis of computer systems or programs based on and related to user or system design specifications; applying systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional specifications. Analyses are performed at all levels of total system product to include concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.

Requirements:

  • Level: Intermediate to Senior
  • Education Minimums: Bachelor's degree from an accredited college in a related discipline, or equivalent experience/combined education, with 5 years of professional experience; or 3 years of professional experience with a related Master's degree. Considered career, or journey, level.
  • Must be Well-versed with Linux
  • Must have experience with automation/DevSecOps tools (Ansible, Jenkins, AccuRev, Gitlab)
  • Must have experience with Active Directory
  • Must have experience with Bash &/or Python scripting
  • Must have active Top Secret Clearance with SCI
  • Must be willing to work full time on-site

Desired Skills:

  • Data storage and management solutions experience with tools such as VMware and NetApp
  • Security+ Certification
  • Experience with Teradici / PCoIP / remote display protocols
  • Experience with agile software development and tools (Jira, VersionOne)
  • Experience applying DISA STIGs
  • Experience with OS patching and COTS installs
  • Prior experience working with one or more of the following environments and applications: Red Hat Linux (RHEL), Postgres, AWS, and Apache
  • Experience working on a Development team within SAFe or other Agile Release Trains
  • Experience with Git
  • Demonstrated experience working across multiple teams and job functions; bridging both sustainment and enhancement priorities
  • Excellent written and verbal communication skills
  • Strong interpersonal skills
  • Ability to work in a fast-paced, dynamic, collaborative team environment
  • Location: 100% Onsite, Springfield VA

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