Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Linux System Administrator

$160k
Full-time

London Approach

Linux Systems Administrator – Active Top Secret Clearance

Location: Springfield, VA – 100% Onsite

Salary: Up to $160,000 Base + Bonus

Benefits: 401(k) Match, Profit Sharing, Comprehensive Benefits

Clearance Required: Active Top Secret (TS)

Employment Type: Full-Time, Direct Hire

Position Overview

We are seeking an experienced Linux Systems Administrator to support and maintain mission-critical infrastructure within a secure federal government environment. This position is ideal for a technically strong Linux professional who enjoys hands-on systems administration, troubleshooting complex infrastructure issues, and ensuring the reliability, security, and performance of enterprise Linux environments.

The successful candidate will have extensive experience administering Linux systems in production environments, resolving escalated technical issues, and supporting infrastructure operations where security, uptime, and system stability are essential.

This is a fully onsite position in Springfield, VA, requiring an active Top Secret security clearance.

Key Responsibilities

  • Administer, configure, maintain, and troubleshoot enterprise Linux servers and infrastructure in secure production environments.
  • Support Linux distributions including Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu, or similar platforms.
  • Monitor system performance, availability, resource utilization, and overall infrastructure health.
  • Diagnose and resolve complex Linux operating system, networking, storage, and application-related issues.
  • Handle escalated technical incidents, perform root cause analysis, and implement long-term solutions.
  • Manage system patching, updates, security configurations, and vulnerability remediation in accordance with federal security requirements.
  • Develop and maintain automation scripts using Bash, Python, or similar scripting languages to improve operational efficiency.
  • Support system deployments, configuration management, and infrastructure improvements.
  • Collaborate with engineering, cybersecurity, and infrastructure teams to maintain secure and reliable systems.
  • Maintain technical documentation, standard operating procedures, and system configuration records.

Required Qualifications

  • Active Top Secret security clearance is mandatory.
  • Strong professional experience administering Linux systems in enterprise or production environments.
  • Extensive hands-on experience with Red Hat Enterprise Linux (RHEL) or comparable Linux distributions.
  • Strong troubleshooting skills across operating systems, servers, storage, and networking.
  • Experience managing system security, user permissions, patching, and vulnerability remediation.
  • Proficiency in Linux command-line administration and shell scripting.
  • Experience supporting business-critical or mission-critical infrastructure.
  • Understanding of networking fundamentals, including TCP/IP, DNS, SSH, firewalls, and related protocols.
  • Ability to work independently, prioritize technical issues, and resolve complex problems in demanding environments.
  • Ability to work onsite in Springfield, VA, five days per week.

Preferred Technical Experience

  • Automation and configuration management using Ansible, Puppet, Chef, or Terraform.
  • Experience with DevOps methodologies, CI/CD pipelines, or infrastructure automation.
  • Virtualization technologies such as VMware or KVM.
  • Containerization technologies including Docker, Kubernetes, or OpenShift.
  • Experience supporting classified government systems or DoD environments.
  • Familiarity with DISA STIGs, system hardening, and federal cybersecurity compliance standards.
  • Experience with monitoring and logging tools such as Splunk, Nagios, Grafana, or similar platforms.
  • CompTIA Security+, RHCSA, RHCE, or other relevant technical certifications.

Compensation & Benefits

  • Base Salary: Up to $160,000 annually
  • Performance Bonus: Additional bonus opportunities
  • 401(k): Employer matching contributions
  • Profit Sharing: Eligibility after one year of employment
  • Comprehensive Benefits: Employer-sponsored benefits package
  • Employment Stability: Long-term opportunity supporting secure, mission-critical government technology environments

Additional Information

This opportunity is best suited for a hands-on Linux Systems Administrator who thrives in technically demanding, security-focused environments. We are looking for someone who can take ownership of production systems, independently troubleshoot complex issues, and contribute to the continued stability and improvement of critical infrastructure.

Candidates must hold an active Top Secret clearance and be available to work fully onsite in Springfield, Virginia.

Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Linux System Administrator in Springfield, VA vacancy
  •  ...LINUX SYSTEM ADMINISTRATOR - Northern Virginia We are seeking an experienced Linux System Administrator to support large-scale Linux enterprise environments operating within highly secure settings. This is an opportunity to work across both traditional infrastructure... 
    Suggested
    Full time

    Searchability Aerospace & Defense

    Washington DC
    3 days ago
  • $92.3k - $166.85k

     ...you want to be a part of, keep reading!Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD. This...  ...individual that has technical experience with administering Linux and Windows servers within a VMware virtual environment. This... 
    Suggested
    Full time
    Contract work

    Leidos

    Alexandria, VA
    5 days ago
  • $90.3k - $189.6k

    Job Title: Linux Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/...  ...Travel: None* * *The Opportunity:CACI is seeking a Linux Systems Administrator to support a long term, multi-year, high performing program.... 
    Suggested
    Contract work
    Work experience placement
    Flexible hours

    CACI International

    McLean, VA
    5 days ago
  • $124.3k - $134.02k

     ...and cost-effective solutions that drive measurable results. Learn more at About the OpportunityDMI is seeking a Solaris/LINUX System Administrator to join our team.Duties and Responsibilities:Maintaining and administering Oracle on Solaris and LINUXAdminister and setup... 
    Suggested
    Work experience placement
    Remote work

    DMI Mobile Enterprise Solutions

    Fort Belvoir, VA
    2 days ago
  • $90k - $120k

     ...readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and...  ...Position Overview By Light has an opening for a Sr. Systems Administrator (Linux/Unix) position supporting the Army National Guard (ARNG) in... 
    Suggested
    Contract work
    Work experience placement
    Worldwide

    By Light Professional IT Services

    Falls Church, VA
    5 days ago
  •  ...to protect our country from threats. Job Description Linux Administrator   Advance how our customers operate while you advance your...  ...and non-production environments.  ~ Proactively monitor system performance and availability, diagnose issues, and implement... 
    Flexible hours

    General Dynamics Information Technology

    Washington DC
    21 days ago
  •  ...new tools and processes for automating and streamlining deployments Ensuring a compliant and secure architecture Monitor running systems Investigate and resolve or escalate problems with running systems Ensure system compliance Create tests for various system components... 
    Permanent employment
    Full time
    Remote work

    Breeze End Technology, LLC

    Alexandria, VA
    2 days ago
  • The HPC group is looking for an experienced Linux systems administrator with HPC experience and programming skills, to join our team. The HPC team is responsible for purchasing, deploying, and maintaining HPC hardware and user tools for over 450 MITRE employees. The HPC... 
    Work experience placement

    MITRE Corporation

    Mc Lean, VA
    5 days ago
  •  ...Washington DC (5 days a week on-site) Clearance: Public Trust (OR being willing to obtain, U.S. Citizenship Required) The Linux Systems Administrator will be responsible for administering and supporting RHEL servers with day-to-day responsibilities including: Managing... 
    Work experience placement

    Catapult Federal Services

    Washington DC
    5 days ago
  •  ...! Chenega Professional & Technical Services, LLC, a Chenega Professional Services ’ company, is looking for a RedHat Linux System Administrator to support a federal agency.   Our company offers employees the opportunity to join a team where there is a robust employee... 

    Chenega Corporation

    Washington DC
    21 days ago
  •  ...should possess communication skills, problem-solving abilities, and familiarity with Agile methodologies. You'll be responsible for system monitoring, incident management, and ensuring compliance for software updates, making this a great opportunity for growth in a... 
    Remote job

    Breeze End Technology, LLC

    Alexandria, VA
    5 days ago
  • By Light Professional IT Services is seeking a Sr. Systems Administrator (Linux/Unix) to support the Army National Guard in Falls Church, VA. The role requires system administration for RHEL servers, including performance monitoring, troubleshooting, backups, and security... 

    By Light Professional IT Services

    Falls Church, VA
    5 days ago
  •  ...other groups Enter issues and fixes into the ticket monitoring system Work issues and service requests as assigned  Maintain...  ...three of the following skillsets (listed in order of preference) o Linux Servers (Red Hat or CentOS); Virtual Machines; Microsoft Server... 
    Contract work
    Remote work

    Connect Talent Solutions

    Fairfax, VA
    19 days ago
  • $117k - $128k

     ...Vulnerability Management (Tenable / Nessus, Linux) Location: Springfield, VA (100%...  ...Community customer. This is a hands-on administrator role on a long-term program, working alongside...  ..., designing, and evaluating security systems and architectures. Experience... 
    Full time
    Local area

    RISA

    Springfield, VA
    24 days ago
  •  ...Job Description Job Description SE Linux Based MLS SME Linux Administrator Location: Springfield, VA Clearance: Must have active TS/SCI with...  ...and engineers will be able to fully utilize modern HPC systems. We are seeking a SE Linux Based MLS Linux... 
    Contract work

    Cohere Technology Group LLC

    Springfield, VA
    a month ago
  • $120k

     ...Job DescriptionJob Description Red Hat Linux Engineer Arlington, VA Pay From: $120,00...  ...experience supporting enterprise software systems, systems engineering, or systems...  ...transfer to government personnel and system administrators supporting monitoring tools and applications... 

    Quadrant

    Arlington, VA
    4 days ago
  •  ...The Senior or Principal Linux Engineer will serve as the senior technical authority for the enterprise Linux environment, overseeing...  ...day-to-day Linux support while driving best practices in system administration, scripting, automation, and infrastructure management. -... 
    Full time

    Object Oriented Search

    Washington DC
    4 days ago
  • $116.35k - $210.33k

     ...Information Technology field to work as a Linux Engineer in the Lorton, Virginia area....  ...all enclaves; establishing new baseline systems for approved projects and providing Tier...  ..., including software developers, system administrators, and various engineers, to support the missions... 
    Full time
    Contract work
    Local area

    Leidos

    Lorton, VA
    1 day ago
  • $135k - $145k

     ...partners, we put each other first. It’s TheIron Bow Way.THE OPPORTUNITY (position overview)Iron Bow Technologies is seeking a Linux Systems Administrator to join our team of Engineers providing onsite Systems Administrator/Virtualization Storage and Network support for our... 
    Contract work
    Shift work

    Iron Bow

    Washington DC
    5 days ago
  • $110k - $120k

     ...Role: Linux Admin Location: Redmond WA Salary range: $110K-$120K PA Job Description Understanding of Linux operating systems and Linux system administration (SysAdmin roles). * Good understanding of Linux/Unix commands (Strong User). * Experience automating... 
    Full time

    Diverse Lynx LLC

    Washington DC
    a month ago
  •  ...THE U.S. ARMY OR ARMY RESERVE*** As a Network Communication Systems Specialist, you'll be responsible for installing, repairing,...  ...with Maintenance & Repairs, Electronic Troubleshooting, Network Administration. In addition, there are 131 nationally recognized... 
    Full time
    Part time
    Immediate start
    Relocation package

    US Army Reserves

    Burke, VA
    7 days ago
  •  ...Senior Linux Engineer- Bellevue Washington 6 months Contract Key Responsibilities Port and migrate embedded Linux software...  ...ongoing Ubuntu upgrade from 18.04 to 22.04 including: Kernel file system and driver updates Bootloader configuration and upgrades... 
    Full time
    Contract work

    Tharu Technologies LLC

    Washington DC
    26 days ago
  • $90.3k - $189.6k

    Job Title: Database Administrator Job Category: Information Technology Time Type: Full time...  ...client's Corporate Business Information Systems. Provides Oracle database support for...  ...understanding of Amazon Web Services (AWS) and Linux operating systems. The successful DBA... 
    Full time
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI International, Inc.

    Springfield, VA
    1 day ago
  • $55 per hour

    Job Description 1 Year Contract Position @ $55.00 per hour Senior Linux Certified engineer with in-depth Vsphere, Windows and Linux experience, latest Windows Operating System, Linux, VMware, F5 load balancers. Extensive experience on Dell server and storage hardware and... 
    Hourly pay
    Contract work

    National Associates, Inc.

    Washington DC
    5 days ago
  • $86.6k - $181.8k

    Job Title: Tier 2 Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start...  ...escalated from Tier 1. Administer and maintain servers (Windows, Linux, Solaris), desktops and applications, printers and... 
    Full time
    Contract work
    Work experience placement
    Flexible hours

    CACI International, Inc.

    Springfield, VA
    2 days ago
  • PSG is seeking an individual with IT Systems Engineering & Administrative experience with Windows and Linux environments. The selected candidate will be responsible for providing technical support for the operating systems and their successful integration with the hardware... 

    Point Solutions Group

    Springfield, VA
    5 days ago
  • $80k - $120k

     ...Information Technology Subcategory: IT Systems Engineer Schedule: Full-Time...  ...motivated and experienced Senior Systems Administrator - RHEL to join our MAJESTIC Joint Program...  ...optimizing mission-critical Red Hat Enterprise Linux (RHEL) systems in a hybrid IT enterprise... 
    Full time
    For subcontractor
    Work at office
    Remote work
    Shift work

    SAIC

    Springfield, VA
    1 day ago
  • $110k

     ...Job Description Job Description Senior RedHat Linux Systems Administrator Pentagon, VA Pay From: $110,000 per year MUST: Sr. RedHat Linux Systems Administrator Top Secret clearance At least 10 years of relevant IT experience providing technical support... 
    Relocation

    Quadrant, Inc.

    Washington DC
    16 days ago
  •  ...Job Description Job Description Job Title: Unix/Linux Administrator Location: Washington DC (hybrid) Type: Contract To Hire Compensation...  ...Design, implement, and maintain Linux-based systems for federal projects, ensuring stability, security, and performance... 
    Contract work
    Local area

    System One

    Washington DC
    28 days ago
  • $150k

     ...Job Description Job Description Senior UNIX Linux Systems Engineer Washington, DC Hybrid – On-Site 2 days per week Hourly Rate...  ..., hardened, automated, and recovered, and will mentor the administrators who operate it day to day. Duties and Responsibilities:... 
    Hourly pay
    Fixed term contract
    Casual work
    Local area
    Remote work
    Monday to Friday
    2 days per week

    System One

    Washington DC
    21 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Linux System Administrator. Be the first to apply!