Linux Systems Administrator
$75.2k - $158.1kCaci Inc
Job Title: Linux Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * *At CACI - Our mission is to get data to those who need it 24x7x365. This contract provides world-wide, enterprise-scaled corporate data transport and messaging services that are highly available, reliable, and fault tolerant. This effort provides world-wide, enterprise-scaled corporate data transport and messaging services that are highly available, reliable, and fault tolerant. This position provides support for the following mission-critical organizations, Y4211/ Enterprise Transport and Routing (ETR), Y4212/ Application Messaging Framework (AMF), and Y4213/ Information Transport Services (ITS). Y421 transports critical data to protect U.S. national security interests, the Warfighter, and civilians. Ultimately, U.S. and Allied Forces lives depend on Y421 services, and this contract is a critical contributor to successfully executing this mission.We are looking for a Linux systems administrator and operational support for mission-critical environments, including command-line system administration and application, data, and messaging flow management. The candidate should have solid, hands-on Linux administration experience and be comfortable independently troubleshooting and resolving routine to moderately complex system issues. Operations Coverage:Standard business-day coverage is 6:00 AM–6:00 PM, with team members coordinating schedules to collectively provide full coverage.Provides 24x7 after-hours on-call support through a rotating schedule, typically with each team member serving as primary on-call approximately every 5-6 weeks.On-call support compensation and extended coverage compensation is provided.5+ years experience required. TS/SCI w/poly is also required.-What You Can Expect: A culture of integrity.At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.An environment of trust.CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.A focus on continuous growth.Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.Since this position can be worked in more than one location, the range shown is the national average for the position.The proposed salary range for this position is: $75,200-$158,100CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.Department:Infrastructure/System Administration
$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$185k - $200k
Red Arch Solutions is hiring a System Administrator on a priority program in Annapolis Junction, MD. The System Administrator shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations...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- 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
$101k - $129k
...Systems Administrator, Bulk Data Transport OperationsMake an Impact Where It Matters MostAt Intelliforce, we support mission infrastructure that... ...partners. This is a strong fit for someone who enjoys Linux, operational support, and keeping high-availability systems...For contractorsImmediate startWorldwide- ...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...Visa sponsorshipWork visa
$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$120k - $157.5k
...System AdministratorBelay Technologies is seeking a System Administrator to join our Intel team. The System Administrator will provide Linux systems administration and operational support for mission-critical environments, including command-line system administration...Contract workWork experience placementFlexible hours$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$148.75k - $201.25k
...Systems Administrator SMEAdvance how our customers operate while you advance your career. Join GDIT as a Systems Administrator SME and build... ...of related experience with a Technical skills:Knowledge of Linux and Windows operating systems and command-line interface (CLI...Temporary workImmediate startWorldwideFlexible hours$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$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$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$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...Full time$158.78k - $165.58k
...motivated individual to join a small, talented, and hardworking Linux team in a hybrid cloud environment. This team creates,... ...architectures. The ideal candidate will have hands-on Linux administration and scripting automation experience with knowledge of AWS Cloud...Full time$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$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$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
- ManTechseeksa 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...Work at office
$159k - $188k
...ACTIVE SECURITY CLEARANCE AT THE TS/SCI POLYGRAPH LEVEL IS REQUIRED We are looking for an innovative, motivated Linux Systems Administrator Automation Engineer to join a small, tight-knit, and talented team operating in a hybrid cloud environment. In this role...Hourly payContract workWork experience placementImmediate startFlexible hours$100k
Overview Description Are you passionate about shaping secure, IT systems in classified environments? Do you want to influence... ...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...Temporary workWork experience placementInterim roleRelocation packageFlexible hours$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- ...safety and security. Make an impact by using your expertise to protect our country from threats. Job Description SYSTEMS ADMINISTRATOR SME – LINUX Grow your impact. Grow your career. At GDIT, you’re not just maintaining systems — you’re supporting a mission...Long term contractContract workWork from homeRelocation packageFlexible hours
$155k - $255k
...Description Description: DarkStar Intelligence is seeking a System Administrator Level 2 to support the implementation, troubleshooting, and... ..., planning, installing, configuring, and sustaining Red Hat Linux (RHEL) environments Extensive experience using UNIX/Linux...Local area$86k - $138k
ResponsibilitiesPeraton is seeking a Linux Systems Administrator with an active TS/SAP clearance to join our team supporting mission-critical operations. The ideal candidate will manage, maintain, and enhance secure Linux-based environments while ensuring uptime and performance...Contract workShift work- ...Belay Technologies in Columbia, Maryland, is seeking a cleared System Administrator to manage Linux-based systems and infrastructure, automate tasks, and optimize performance across the stack. The ideal candidate has TS/SCI with polygraph, hands-on Linux experience...
- OverviewSenior Linux Systems AdministratorLOCATION: Columbia, MD (Onsite)JOB STATUS: Full-timeCLEARANCE: Active Top Secret / TS/SCI (Required... ...opportunity for a highly experienced Senior Linux Systems Administrator to build, secure, and sustain the Linux server and...Monday to Friday
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