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Linux System Administrator Ts Sci Jobs (NOW HIRING)

ManTech International

Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

... Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time Description & Requirements Unlock ... MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team ...

GDIT

Linux Systems Administrator

Concord, NC · On-site

Monitor system performance and availability, proactively identifying and resolving issues before ... TS/SCI clearance is required * US citizenship required due to the TS/SCI clearance requirement

MANTECH

Linux System Administrator

Laurel, MD · On-site

MANTECH is seeking a motivated, career and customer-oriented Linux System Administrator in Laurel ... Must have a current/active TS/SCI w/ Polygraph Physical Requirements: • The candidate should be ...

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How much do linux system administrator ts sci jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for linux system administrator ts sci 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 is the difference between Linux System Administrator Ts Sci vs Network Administrator?

AspectLinux System Administrator Ts SciNetwork Administrator
CertificationsLinux certifications (e.g., LPIC, RHCSA)Network certifications (e.g., CCNA, CompTIA Network+)
Work EnvironmentData centers, server rooms, Linux-based systemsNetworking labs, enterprise networks, routing/switching environments
Industry UsageIT companies, tech firms, government agenciesTelecommunications, large enterprises, ISPs
Job FocusServer management, Linux OS, scriptingNetwork infrastructure, routing, switching, security

The main difference between Linux System Administrator Ts Sci and Network Administrator lies in their focus areas. Linux System Administrators primarily manage Linux servers, ensuring system stability and security, while Network Administrators focus on maintaining and troubleshooting network infrastructure. Both roles require technical certifications and are vital in IT environments, but their daily tasks and expertise differ significantly.

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What cities are hiring for Linux System Administrator Ts Sci jobs? Cities with the most Linux System Administrator Ts Sci job openings:
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Linux System Administrator Ts Sci jobs near you
Infographic showing various Linux System Administrator Ts Sci 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

The Maven Group, LLC

Annapolis Junction, MD • On-site

Full-time

Posted 27 days ago

Job description

Senior Linux Systems Administrator - Annapolis Junction, MD
Our client needs a seasoned infrastructure expert to keep a large, mission-critical enclave running smoothly - think servers, virtual machines, managed switches, NAS, VLANs, and VPNs all working in concert. If you enjoy owning the full lifecycle of a complex environment - from day-to-day upkeep to planning its next evolution - this role gives you real latitude to shape how the infrastructure grows.
On any given day, you might be:
  • Mapping out a migration plan to move customers onto new architecture with zero disruption
  • Tuning routing protocols and chasing down a latency issue across multiple hops
  • Locking down firewalls and closing out vulnerability findings
  • Keeping security documentation current - SSPs, STE/STN packages, patching records, IAVM tracking
  • Fielding a question from a developer whose VM just went sideways
  • Updating the network diagram nobody else wants to touch, and writing up the monthly outage report
  • Scouting new tools or platforms that could raise the bar on the Agency's standard toolset

What you bring:
  • Bachelor's degree + 11 years of relevant experience (or equivalent combination)
  • Active TS/SCI with Polygraph
  • Hands-on network administration chops - routing, firewalls, troubleshooting connectivity and throughput issues
  • Experience with nginx, SELinux, and FIPS environments
  • Comfort with monitoring tools like OpenVAS, Prometheus, and Grafana
  • Familiarity with RMF compliance processes, McAfee, and UAM

Nice to have:
  • Docker, MongoDB, Elasticsearch
  • Ansible, GitLab, RedHat Satellite
  • Software-defined networking exposure

Apply