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Washington, District of Columbia

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2d ago

Sr Linux Systems Engineer 100% ONSITE in Washington DC 20006 Per Federal contract U.S. Citizenship Required Must be able to pass enhanced FBI background screening (criminal, financial and finger printing) for Public Trust clearance Performance Period: June 2026- Dec 31 2026, with the possibility of multi-year extension based on performance W-2 or C2C MUST APPLY BY 5/12/2026 Job Summary:The Senior Systems Engineer will play a critical role in supporting a Linux-based high-performance computing

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Third Party, Contract

Depends on Experience

Systems Administrator, Senior (Linux/Windows)

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal contracting company, is seeking a Senior Systems Administrator with Linux and Windows administration experience to support a Special Access Program, operating in highly secure, complex environments where precision and reliability are essential. This role focuses on owning and optimizing enterprise Linux & Windows infrastructure across multiple datacenters, partnering with cybersecurity and engineering teams, and providing Tier support fo

Full-time

USD 110,800.00 per year

Windows Linux Systems Administrator - TS/SCI with Polygraph

Fort Belvoir, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, System Administration, Windows Applications Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is looking for a skille

Full-time

USD 114,750.00 - 155,250.00 per year

Linux Systems Administrator Tier 1 & 2 (HPC)

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a Linux Systems Administrator with Tier 1 & 2 experience to support a classified High-Performance Computing (HPC) environment in Arlington, VA. Are you an experienced Linux administrator with strong system fundamentals wanting to expand your skillset into HPC environments? If so, this role is for you! You will work alongside senior system administrators and engineers, receiving hands-on exposure to HPC p

Full-time

USD 93,900.00 per year

Windows Systems Administrator

Reston, Virginia

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Today

Position Overview We are seeking a Senior Infrastructure Engineer to support and operate mission-critical, enclave-based environments across on-premises VMware infrastructure and AWS cloud. This role sits at the center of a high-security, high-availability ecosystem, supporting systems where downtime has real operational impact. You will be responsible for owning, stabilizing, and improving a complex hybrid environment consisting of both legacy and modern platforms. This is not a passive support

Full-time

USD 116,350.00 - 210,325.00 per year

Windows / Linux System Administrator

Maryland

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Today

Description & Requirements Maximus is seeking a Windows / Linux System Administrator to manage and support internal-use telephony systems for our Homeland Security customer. This role provides technical leadership for the configuration, maintenance, and troubleshooting of enterprise telephony infrastructure, with responsibilities spanning operating systems, networking, security, and application support. This position is on-site and requires a Secret Clearance. Maximus TCS (Technology and Consul

Full-time

USD 90,000.00 per year

Sr. Linux Systems Engineer

Remote or Hybrid in Tysons, Virginia

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29d ago

ITCON Services is seeking to hire a motivated and knowledgeable Sr. Systems Engineer (Sr. Linux Systems/Azure Cloud Engineer) to join our team. Location: Tysons, VA area Fully Remote is available for the right candidate Required Skills and Qualifications Has 10+ experience providing production support, platform/server administration support, and environment standardization for development, test, and Production for both Windows and Linux (Redhat and other)Experience with Linux hardening (CIS/STI

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Full-time

$120,000+

Senior Linux Systems Engineer

Washington, District of Columbia

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Yesterday

We are seeking an experienced Senior Linux Systems Engineer will support and enhance a Linux-based High-Performance Computing (HPC) environment that underpins advanced statistical modeling and economic research across multiple business units. This platform enables data scientists, economists, and analysts to perform large-scale computations using modern analytical tools. The role focuses on ensuring platform stability, scalability, performance, and security while continuously evolving the enviro

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Contract

Depends on Experience

Senior Systems Administrator - Linux

Fort Belvoir, Virginia

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Today

Leidos is seeking a Linux Administrator to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected t

Full-time

USD 92,300.00 - 166,850.00 per year

Linux Server Systems Administrator

Bethesda, Maryland

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Today

Leidos is looking to fill a Linux Server Systems Administrator position to support the National Digital Exploitation & OSINT Center (NDOC). This role requires an individual that has technical experience with administering Linux servers within a within a physical and virtual environment. This role is responsible for interacting with administrators to handle service inquiries and problems. Duties include examining customer problems and implementing appropriate corrective action to initiate a repai

Full-time

USD 92,300.00 - 166,850.00 per year

Windows Systems Administrator

Lorton, Virginia

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Today

Job Title: Windows Systems Administrator Work Location: Hybrid; onsite 2-5 times a week in Lorton, VA (Applicant must be based within a commutable distance (1-2 hours) within the DMV) Alpha Omega is seeking a qualified Windows Systems Administrator in support of our DHS ICE customer. The Windows Systems Administrator will be responsible for the administration, automation, and security of the organization's Windows server and virtual infrastructure. This role requires advanced expertise in Micr

Full-time

USD 70,000.00 - 130,000.00 per year

Windows Systems Administrator

Chantilly, Virginia

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Today

Leidos is seeking a Windows Systems Administrator to join a small but highly impactful team. You will support systems with significant importance to our customer while enjoying flexibility in how the job is done and having the opportunity to expand the breadth of your technical skills. In this role you will support the maintenance of classified Windows systems on a standalone network across CONUS with planned expansion. Responsibilities Configuration of workstations, servers and peripheral devi

Full-time

USD 87,100.00 - 157,450.00 per year

Junior Linux Systems Engineer (RHEL/Clearance)

Manassas, Virginia

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Today

Onsite | Clearance required This Jobot Job is hosted by: Madeline Lazarus Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $80,000 - $100,000 per year A bit about us: We are a leading provider of information technology, logistics management, business process re-engineering, financial management, and administrative support services for the Department of the Navy and Homeland Security. We have an incredible team of engineers, analysts, and IT

Full-time

USD 80,000.00 - 100,000.00 per year

Sr. Linux Systems Engineer

Germantown, Maryland

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Automation Tools, Complex Systems, Linux, System Administration, System Designs Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: GDIT is seeking an experienced Linux Systems Administrator to support critical IT op

Full-time

USD 129,813.00 - 172,500.00 per year

Linux Systems Engineer

Springfield, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Configuration Management (CM), Red Hat Enterprise Linux (RHEL), Scripting Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: GDIT is your place. You make it your own by embracing auton

Full-time

USD 159,800.00 - 216,200.00 per year

Windows/Linux Server Administrator

Remote

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Yesterday

Seeking an experiencedWindows/Linux Server Administratorto support OS level upgrades, server operations, and troubleshooting in an enterprise environment. Role focuses primarily onWindows Server, with some Linux exposure. Key Responsibilities Support and maintain Windows and Linux servers Perform OS and application upgrades Troubleshoot server, application, and basic network issues Use command line tools (PowerShell, Bash) for administration Participate in scheduled maintenance windows Follow

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Contract, Third Party

Depends on Experience

Senior Linux Systems Engineer

Sterling, Virginia

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Today

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Full-time

Linux/ Cloud Engineer

Arlington, Virginia

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Today

Job ID: T2601926 Location: Arlington, VA, US Date Posted: 2026-03-05 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: ORA_ON_SITE Description ? SAIC has an opening for a Linux/Cloud Engineer billet in Arlington, VA. SAIC is recognized as an IT leader in the intelligence and law enforcement spaces. This exciting opport

Full-time

Linux Systems Administrator TS/SCI POLY

Centreville, Virginia

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Today

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible. Job Description: Are you a skilled Linux Systems Administrator looking to work on missi

Full-time

USD 112,200.00 - 196,400.00 per year

ITSM ServiceNow Platform & Linux Administrator /CMDB Engineer

Washington, District of Columbia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: Other Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, Microsoft Windows Server, ServiceNow Administration, ServiceNow Configuration Management Database (CMDB), ServiceNow Platform Certifications: None Experience: 2 + years of related experience ship Required: Yes Job Description: SYSTEMS ENGINEER Senior - Servi

Full-time

USD 119,000.00 - 161,000.00 per year

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