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Top Secret Linux Engineer Security Clearance Jobs

MANTECH

Linux Engineer

Quantico, VA · On-site

The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and ... Security Clearance Required : * Must have a current/active Top Secret / SCI. Physical Requirements:

MANTECH

Linux Engineer

Quantico, VA · On-site

The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and ... Security Clearance Required : * Must have a current/active Top Secret / SCI. Physical Requirements:

MANTECH

Linux Engineer

Quantico, VA

The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and ... Security Clearance Required : * Must have a current/active Top Secret / SCI. Physical Requirements:

ManTech International

Linux Engineer

Quantico, VA · On-site

The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and ... Security Clearance Required : * Must have a current/active Top Secret / SCI. Physical Requirements:

ManTech

Linux Engineer

Quantico, VA · On-site

The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and ... Security Clearance Required : * Must have a current/active Top Secret / SCI. Physical Requirements:

Full Visibility LLC

Senior Linux Engineer

Quantico, VA · On-site

Must have an active Top Secret Clearance . The Senior Linux Engineer will coordinate with the PM to ... security and law enforcement. Headquartered in Tysons, VA - with locations in Chantilly, VA ...

PlanIT Group LLC

LINUX Engineer

Arlington, VA · On-site

... active Top Secret Clearance to be considered. * Perform the installation, configuration ... Perform regularly scheduled software maintenance and security patching. * Perform installation of ...

PlanIT Group LLC

LINUX Engineer

Arlington, VA · On-site

... active Top Secret Clearance to be considered. * Perform the installation, configuration ... Perform regularly scheduled software maintenance and security patching. * Perform installation of ...

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Top Secret Linux Engineer Security Clearance information

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How much do top secret linux engineer security clearance jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for top secret linux engineer security clearance in the United States is $59.73, according to ZipRecruiter salary data. Most workers in this role earn between $48.08 and $67.07 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Top Secret Linux Engineer with Security Clearance, and why are they important?

To thrive as a Top Secret Linux Engineer with Security Clearance, you need deep expertise in Linux system administration, networking, cybersecurity best practices, and typically a bachelor's degree in computer science or a related field, along with an active Top Secret security clearance. Familiarity with security monitoring tools, scripting languages (such as Bash or Python), and compliance systems like SELinux or DISA STIGs is frequently required. Strong problem-solving, discretion, and communication skills help you respond to threats and collaborate securely across teams. These abilities are vital to protect sensitive systems, ensure compliance with government standards, and maintain national security.

What is a Top Secret Linux Engineer Security Clearance?

A Top Secret Linux Engineer Security Clearance refers to an IT professional who specializes in managing and securing Linux-based systems and networks, and holds a 'Top Secret' level clearance from the U.S. government. This clearance allows them to access highly sensitive or classified information necessary for their work, typically in defense, intelligence, or government sectors. The role involves configuring, maintaining, and securing Linux systems while ensuring compliance with strict security protocols and regulations. Obtaining this clearance requires a thorough background check and adherence to government standards.

What are some common challenges faced by Top Secret Linux Engineers working in secure environments, and how can candidates prepare for them?

Top Secret Linux Engineers often work in highly regulated, secure environments where strict access controls, compliance protocols, and documentation requirements are enforced. Common challenges include adapting to limited internet access, navigating complex approval processes for software changes, and balancing security with operational efficiency. Candidates can prepare by familiarizing themselves with government security standards (such as NIST or DISA STIGs), developing strong troubleshooting skills in air-gapped or isolated networks, and staying current on secure Linux administration best practices. Demonstrating adaptability and clear communication skills is also essential for effective collaboration with cross-functional security and compliance teams.
Infographic showing various Top Secret Linux Engineer Security Clearance job openings in the United States as of May 2026, with employment types broken down into 80% Full Time, 19% Part Time, and 1% Contract. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $124,247 per year, or $59.7 per hour.
Linux Engineer

Linux Engineer

MANTECH

Quantico, VA • On-site

Full-time

Posted 9 days ago

ManTech rating

8.8

Company rating: 8.8 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

31st of 186 rated software companies

Job description

MANTECH seeks a motivated, career and customer-oriented Linux Engineer to support our current NCIS contract out of Quantico, VA.


Responsibilities include but are not limited to: 

  • The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and unclassified networks in support of Cyber investigations and operations.

  • Candidates will be responsible for optimizing, maintaining, and securing Linux systems to ensure optimum performance with minimal downtime. 

  • Candidates may also be asked for creative contributions to improve existing processes and for surge support for various initiatives in areas related to their area of expertise

  • Travel may be required to support operations.

Minimum Qualifications: 

  • Bachelor’s degree and minimum of 4 years of experience working with Red Hat Enterprise Linux 7.X, 8.X, 9.X with a strong command-line interface (CLI) skillset (additional 2 years of experience may be substituted in lieu of degree).

  • Experience securing Linux systems with DISA STIG requirements.

  • Experience with Red Hat based tools such as Ansible and Red Hat Satellite.

  • Familiarity with at least one common scripting language such as Python, Perl, bash, etc

  • Experience with virtualization tools (Vmware, KVM, Proxmox)

Preferred Requirements: 

  • Experience with monitoring solutions such as Icinga2 or Nagios Experience and / or willingness to learn DevOps and Automation.

  • Familiarity with the DIACAP and/or RMF accreditation processes, specifically with configuring Linux systems in compliance with the Security Technical Implementation Guides (STIGs).

  • Experience with maintaining a secure, standard OS build process.

  • Experience installing and managing PostgreSQL.

Security Clearance Required:

  • Must have a current/active Top Secret / SCI.

Physical Requirements:

  • Sedentary Work

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