Linux System Administrator
$128k - $214.4kMantech
Linux System AdministratorUnlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD.You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organization—the foundation of all Enterprise Information Technology (EIT) for MPO.Responsibilities include but are not limited to:Configure and manage Linux operating systems. Installs/loads operating system software, troubleshoots maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance.Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems.Manage IT system infrastructure and any processes related to these systems.Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.Provide support for the dispatch system and hardware problems and will remain involved in the resolution process.Optimize system operations and resource utilization and perform system capacity analysis and planning.Analyze and resolve complex problems associated with server hardware, applications and software integration.Minimum Qualifications:Bachelor's degree in technical discipline from an accredited college or university.20 years' experience as an Systems Administrator/Engineer in programs and contracts of similar scope, type and complexity is required.Demonstrated experience in planning and leading Systems Administration/Engineering efforts is required.Must be proficient with troubleshooting in a Linux Red Hat environment.Experience with VMWareDemonstrated experience with modern automation/configuration tools such as Splunk or AnsibleIAT I certification (DoD 8140 required within 60 days of starting employment. Acceptable certifications include A+ CE/CCNA-Security/CND/Network+ CE /CySA+/GICSP/GSEC/Security+ CE/CND/SSCP)Preferred Qualifications:Experience/familiarization with full lifecycle management of Linux systems, to include provisioning, configuration management and patching.Red Hat Certified System Administration Certification.Experience with NetAPPClearance Requirements:Must have a current/active Top Secret/SCI with PolygraphPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time.Occasionally move about inside the office to collaborate with other leaders/teams, use standard office automation equipment, and virtual communication.The projected compensation range for this position is $128,000.00-$214,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at and provide your name and contact information.
$130k - $150k
...SCI with Polygraph is required for this position **Description:Red Arch Solutions is seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team in Annapolis Junction, Maryland. The ideal candidate will have strong experience...Suggested- ...CYBERCORE TECHNOLOGIES TEAM.We are GROWING ! Bring your Technical Capabilities, Enthusiasm, and Team Focus.New Opportunity for a LINUX System Administrator - TS/SCI Poly.Job Responsibilities:Key Responsibilities: Seeking Linux Systems Administrator to join team in support of...Suggested
$116.35k - $210.33k
Linux Systems Administrators / Engineers are needed across several Leidos prime programs in our Intelligence Sector’s Cyber & Analytics Business Area (CABA). Our talented team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software...SuggestedFull timeImmediate startRelocation packageFlexible hours- ...The Johns Hopkins University Applied Physics Laboratory is seeking a Linux System Administrator to join the RF Engineering group. In this role, you will manage and secure Linux systems within classified environments. Your responsibilities will include maintaining infrastructure...Suggested
- Computer Technologies Consultants (CTC) is seeking a Linux System Administrator to support the Intelligence Community in Laurel, MD.With offices in Washington DC and San Diego, CA, CTC is a leading technology company providing lifecycle IT, data analytics, cloud managed...SuggestedFull timeLocal area
- ...Themis Insight seeks a Principal Systems Administrator (Linux) in Laurel, MD. You will lead Linux administration across OpenStack, AWS, and VMWare platforms, focusing on VM management, security, and DevOps tasks in a customer-facing environment. Ideal candidates have...
- ...CACI International Inc seeks a Systems Administrator 3 to join our Infrastructure team, supporting Linux VMs across OpenStack, AWS, and VMware environments. You will manage VM health, certificate lifecycle, and software updates while aligning with security requirements...
$116.35k - $210.33k
Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our Intelligence Sector, Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical...Full timeImmediate startFlexible hours$77.6k - $176k
Linux System Administrator, SeniorThe Opportunity:Install systems on dedicated infrastructure, ensure the infrastructure is functional and available, and update and patch critical systems. Provide customers with insight into their network through monitoring and performance...Full timeContract workPart timeWork at officeLocal areaRemote work$146k - $234k
...Senior Cloud & Distributed Systems EngineerWe are seeking a highly skilled Senior Cloud... ...availability.This is not a traditional system administration role — it is a reliability-focused... ...ResponsibilitiesAdminister and optimize enterprise Linux systems across large distributed...Contract workShift work$92.3k - $166.85k
...Intelligence Community customers as they address evolving national security challenges.About the OpportunityLeidos is seeking a Linux Systems Administrator - Quality Assurance to support Linux-based environments that enable mission-critical testing, validation, and operational...Full time$105k
...Linux Systems AdministratorDo you thrive in and love a fast-paced, dynamic classified environment? Do you love to [area of expertise]... ...to Work in IT for 6 years running, and seek a Linux Systems Administrator with experience working in a classified environment to join...Temporary workWork experience placementRelocation packageFlexible hours- Constellation Technologies, Inc is seeking a Senior IT Systems Administrator with a TS/SCI clearance and active polygraph. The role supports federal... ...and Hawaii. Eligible candidates must be US citizens with Linux administration, networking basics, SSH, and scripting...Contract work
$119.5k - $275k
Federal HPC Linux System Administrator, (Clearance required TS/SCI with Poly) On-Site, MarylandThis role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE partner/customer office.Who We Are:Hewlett Packard Enterprise is the global...Full timeWork experience placementWork at office- ...to protect our country from threats. Job Description SYSTEMS ADMINISTRATOR SME Advance how our customers operate while you advance... ...related experience with a ● Technical skills: Knowledge of Linux and Windows operating systems and command-line interface (...
- ...sponsor an employment Visa. What You’ll Be Doing (We don’t love the bullet points, but we love the work!) As the Linux System Administrator, you'll get to be part of a team responsible for providing support for a large-scale Linux system including installation...Full timeVisa sponsorshipWork visa
$185k - $215k
...information theft and augment protections for our customers systems. If you are looking to join a company that provides... ...Responsibilities: Candidate will be responsible for providing Sr. level Linux System Administration support for the program. Required: Sr. Linux (Red Hat/...- ...Job Description Job Description Linux System Administrator III Omega Enterprise Solutions is a Maryland-based, Service-Disabled Veteran-Owned Small Business (SDVOSB) with a special focus on the U.S. Department of Defense (DoD) and Intelligence Community (IC) mission...
$161k - $172k
...Responsibilities : Stand up, configure, and maintain Linux servers. Monitoring and patching/upgrades to standard networking... ...MD Proficient with Linux. Minimum of 3 years Linux system administration experience (within the last 3 years). Proficient with AWS...$101k - $129k
...Systems Administrator, Bulk Data Transport Operations Make an Impact Where It Matters Most At Intelliforce, we support mission infrastructure... ...partners. This is a strong fit for someone who enjoys Linux, operational support, and keeping high-availability systems...Full timeFor contractorsImmediate startWorldwideVisa sponsorship$130k - $150k
...Polygraph is required for this position ** Description: Red Arch Solutions is seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team in Annapolis Junction, Maryland. The ideal candidate will have strong experience...Full timeContract workWork experience placementLocal area$150k - $190k
...Summary CTC Group has a new and exciting opportunity for Linux Systems Administrators to maintain and secure Linux-based systems, support Cisco and Palo Alto network infrastructure, automate system administration tasks using Ansible, Bash, and Python, and perform...Full time$120k - $240k
...effort to consolidate a diverse set of systems into a new cohesive solution that improves... ...: Work with current owners and administrators to understand existing systems, requirements... ...Skills: Extensive RedHat (RHEL), CentOs Linux, and/or UNIX experience. Experience...Full timeWork at officeFlexible hours$148.3k - $266.9k
...Description:Parsons is looking for a talented and fully cleared Systems Administrator to join our growing team! This role is supporting a highly... ...cybersecurity engineers and analysts as a one-stop-shop for Linux systems administration.What You'll Be Doing:Support and...Full timeFlexible hours- At CACI, we seek a senior Virtual Desktop Infrastructure Administrator with strong Linux knowledge to lead and support high-assurance IT environments, including UNIX, Linux, and Windows systems. The role requires TS/SCI with Poly, a technical degree, and extensive ITSM...
$151k - $170k
...active TS/SCI with Polygraph is required for this position **Position OverviewWe are seeking a highly experienced Senior Linux System Administrator / System Engineer to support a high-visibility mission environment within the Intelligence Community. This role requires...- General information Job Posting Title Windows / Linux System Administrator Date Thursday, April 16, 2026 City Annapolis Junction State MD Country United States Working time Full-time Description & Requirements Maximus is seeking...Minimum wageFull timeContract workTemporary workWork experience placement
- Booz Allen Hamilton is seeking a System Administrator to design, deploy, and maintain Cross Domain Solutions for a DoD enterprise environment... ...teammates and leading modernization efforts. The role requires Linux expertise, DoD 8570.1 IAT II readiness, and a TS/SCI...
$100k
Description Are you passionate about shaping secure, IT systems in classified environments? Do you want to influence system... ...someone like you to join our team at APL! We are seeking a Linux System Administrator to join the RF Engineering group to support Hardware‑in‑the...Interim role$115k - $130k
...Linux System Administrator Level 2 Location: Fort Meade, MD Employment Type : Full-Time Clearance: TS/SCI with Full Scope Polygraph Salary Range: $115,000 to $130,000 per year OTA is seeking System Administrators to provide support for implementation,...Full time
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