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Senior Linux Network Administrator Jobs (NOW HIRING)

SAIC

Senior Linux Systems Administrator

Princeton, NJ · On-site

SAIC is recruiting for a Senior Linux Systems Administrator to support their NOAA GFDL program in ... scalable network file systems and centralized storage appliances. • Experience supporting ...

Leidos

Senior Linux System Administrator

Alexandria, VA · On-site

$107K - $195K/yr

The Senior Linux System Administrator will work within a team engineers, developers and system ... Manage networking equipment including switches, routers and firewalls. * Manage configuration and ...

GDIT

Senior Linux System Administrator

Center, MS · On-site

$90K - $123K/yr

No Senior Linux System Administrator The position is for the Senior Linux System Administrator responsible for the servers that process data from a global network of buoys, managed by the National ...

Leidos

Senior Linux Systems Administrator

Annapolis, MD · On-site

$92K - $166K/yr

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our ... Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO ...

GDIT

Linux Systems Administrator

Concord, NC

Join GDIT as a Senior Linux Systems Administrator and build an impactful career in enterprise IT, ... Collaborate with infrastructure, network, storage, and security teams to design and implement Linux ...

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Senior Linux Network Administrator information

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How much do senior linux network administrator jobs pay per hour?

As of Jul 16, 2026, the average hourly pay for senior linux network administrator in the United States is $53.34, according to ZipRecruiter salary data. Most workers in this role earn between $48.08 and $57.69 per hour, depending on experience, location, and employer.

What is the difference between Senior Linux Network Administrator vs Linux Network Engineer?

AspectSenior Linux Network AdministratorLinux Network Engineer
CertificationsCCNA, Linux+, Cisco certificationsCCNA, Linux+, Cisco certifications
Work EnvironmentData centers, enterprise networks, IT departmentsNetwork design, implementation, troubleshooting in similar environments
Primary FocusManaging and maintaining existing Linux-based networksDesigning and deploying new Linux network solutions

Both roles require similar certifications and work in enterprise environments, but the Senior Linux Network Administrator focuses on maintaining and supporting existing networks, while the Linux Network Engineer emphasizes designing and implementing new network solutions.

What cities are hiring for Senior Linux Network Administrator jobs? Cities with the most Senior Linux Network Administrator job openings:
What are the most commonly searched types of Linux Network Administrator jobs? The most popular types of Linux Network Administrator jobs are:
Senior Linux Network Administrator jobs near you
Infographic showing various Senior Linux Network Administrator job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 1% Temporary, and 2% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $110,947 per year, or $53.3 per hour.
Senior Linux Systems Administrator

Senior Linux Systems Administrator

Computational Physics, Inc.

Washington, DC • On-site

$140K - $165K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

Job description

Computational Physics, Inc. (CPI) is seeking a Senior Linux System Administrator to support our customers at the United States Naval Observatory (USNO) in the deployment and maintenance of its precise timing and astrometry networks.
The USNO is responsible for the production and dissemination of precise parameters concerning time, star positions, and the earth's rotation to the Department of Defense (DoD) and intelligence community, other U.S. Government (USG) users such as NASA and the National Oceanic and Atmospheric Administration (NOAA), as well as non-USG civilian and international users. Distribution of these parameters supports GPS navigation, among other applications, an important national and international function. A reliable, secure, maintainable and manageable USNO network is crucial to the production and dissemination of these data products.
The position will be located at the U.S. Naval Observatory in Washington D.C. Partial telework may be permitted in accordance with applicable Navy and Observatory guidance in effect at the time.
Required Qualifications
  • Seven (7) or more years of industry experience
  • Five (5) or more years of experience as a Linux System Administrator Experience managing, configuring, and patching
  • Red Hat Enterprise Linux (RHEL) systems Experience applying STIGs and remediating vulnerabilities identified by ACAS or similar security tools Experience supporting systems in virtualized environments (e.g., VMware vSphere)
  • Experience integrating systems with monitoring and alerting platforms (e.g., SolarWinds, AIDE)
  • Experience configuring and managing centralized authentication services (e.g., Active Directory, Centrify, FreeIPA/IdM)
  • Experience installing and maintaining endpoint security tools (e.g., Trellix/McAfee, Microsoft Defender for Endpoint)
  • Experience configuring and managing centralized logging solutions (e.g., rsyslog, SIEM integrations)
  • Experience administering Linux systems using configuration management tools (e.g., Ansible, Puppet)
  • Experience with DoD cybersecurity policies and frameworks is highly desirable

Education & Certifications
  • Bachelor's degree in IT, CS, or related field
  • CompTIA Security+ CE
  • Active Top Secret Security clearance

Preferred Qualifications
  • Strong troubleshooting skills across system, network, and storage layers
  • Experience configuring and troubleshooting SELinux
  • Experience managing RHEL lifecycle and patching using tools such as Red Hat Satellite or equivalent
  • Experience with container technologies (e.g., Podman, Docker)
  • Strong understanding of Linux networking (e.g., firewalld/nftables, DNS, routing, VLANs)
  • Experience with modern monitoring and observability platforms (e.g., Prometheus, Grafana, ELK)
  • Experience managing Linux storage (e.g., LVM, XFS, NFS, multipath) Experience developing and maintaining
  • Ansible playbooks/roles and using version control (e.g., Git)
  • Experience supporting compliance frameworks (e.g., RMF, STIG checklists, POA&M development)

U.S. citizenship is required for DoD contracts.
About CPI
We love science! We study the physical properties of the Earth and our atmosphere, neighboring planets, and the sun. We make the study of science practical by translating our findings into products, both hardware and software, that make our customer's lives easier and better. CPI has served various U.S. Government agencies, universities, international science organizations, prime contractors, as well as commercial customers for 40 years.
CPI is an employee-owned company -- our team members receive company stock. Employee ownership motivates and empowers increased productivity, contribution to the longevity of the business, improved retention, and enhanced employee engagement.
Why Work for Us?
  • Competitive salary and comprehensive benefits
  • Positive, upbeat, and transparent company culture with opportunities for self-development and career advancement
  • Employee-owned small business that allows team members to learn from each other and take ownership
  • Professional development support including conference attendance and certification training

Benefits
  • 401(k), Profit Sharing and an Employee Stock Ownership Plan (ESOP)
  • Disability insurance (short-term and long-term)
  • Flexible schedule
  • Flexible spending account
  • Health, Dental, and Vision insurance
  • Life insurance
  • Paid time off
  • Parental Leave
  • Tuition reimbursement

To apply please visit our careers page.
CPI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.
If you need a reasonable accommodation for any part of the employment process, please contact us and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis.

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