System Administrator Jobs in Washington

21 - 40 of 360 Jobs

System Administrator Level IVJob Title - System Administrator Level IV

General DynamicsCompany Name - General Dynamics

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Laurel, Maryland, USA

Part-time

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: Systems Administration Job Qualifications: Skills: Active Directory (AD), Operating Systems (OS), OS Configuration, PC Installation Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: System Administrator Level IV Description: Manag

Linux System Administrator - Secret Clearance preferred (On-Site)Job Title - Linux System Administrator - Secret Clearance preferred (On-Site)

General DynamicsCompany Name - General Dynamics

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Oakton, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux System Administration & Networking, RedHat, Troubleshooting Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Discover a career that is challenging, impactful, and mission-critical. Join our team as a Linux System Adm

System AdministratorJob Title - System Administrator

Maxar Technologies Holdings IncCompany Name - Maxar Technologies Holdings Inc

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Chantilly, Virginia, USA

Full-time

Please review the job details below. Are you a System Administrator that likes working on important and high visibility projects? Then we need your help! We have an urgent and immediate need for a Systems Administrator to join our team at a customer-site in Chantilly, VA. Life with Us Project: This customer office Provides Geospatial Support across the Enterprise. You will have the opportunity to help support applications enabling critical missions. The job will allow you to be instrumental in

System AdministratorJob Title - System Administrator

SAICCompany Name - SAIC

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Fort Meade, Maryland, USA

Full-time

Job ID: 2506155 Location: FORT MEADE, MD, US Date Posted: 2025-06-18 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and training solutions for the Intelligence

System Administrator (Top-Secret SCI CI Poly)Job Title - System Administrator (Top-Secret SCI CI Poly)

Take2 ConsultingCompany Name - Take2 Consulting

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Fort Meade, Maryland, USA

Full-time

System Administrator Overview We are seeking a skilled Senior-Level FSR/Developer with expertise across various IT disciplines, including virtualization, operating systems, networking, automation, and security. The ideal candidate will have hands-on experience in the following areas: Virtualization and Infrastructure (VMware/ESXi): Hands-on experience with virtualization and infrastructure (VMware/ESXi)Proficient in deploying and managing virtual machines (VMs) within vSphereStrong understanding

System Administrator-Senior LevelJob Title - System Administrator-Senior Level

NightwingCompany Name - Nightwing

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Sterling, Virginia, USA

Full-time

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

System Administrator 1Job Title - System Administrator 1

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

RealmOne is the GOAT - where your career can reach the greatest heights! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join u

System Administrator 2Job Title - System Administrator 2

JacobsCompany Name - Jacobs

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Fort Meade, Maryland, USA

Full-time

Your Impact: Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a System Administrator to join our team of passionate individuals in Ft Meade, Maryland. In this role you will support challenging, mission-critical projects that make a direct impact on the nation's security and intelligence mission. Responsibilities: Provide support to IT systems, including monitoring and problem resolution for all client/server/st

System Administrator (SA1) (Government)Job Title - System Administrator (SA1) (Government)

AT&T Inc.Company Name - AT&T Inc.

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Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

System Administrator (SA2) (Government)Job Title - System Administrator (SA2) (Government)

AT&T Inc.Company Name - AT&T Inc.

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Columbia, Maryland, USA

Full-time

System Administrator (SA3) (Government)Job Title - System Administrator (SA3) (Government)

AT&T Inc.Company Name - AT&T Inc.

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Columbia, Maryland, USA

Full-time

Sr. System Administrator - VDIJob Title - Sr. System Administrator - VDI

LeidosCompany Name - Leidos

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Odenton, Maryland, USA

Full-time

The Defense group at Leidos has a career opening for a System Administrator on a DISA contract. This role is primarily on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: Provide Senior level expertise for Virtual Desktop Infrastructure (VDI) environment.Lead as the Subject Matter Expert on all VDI related issues/needs.Provide support for ticket escalation o

Network/System Administrator IIIJob Title - Network/System Administrator III

Modern Technology SolutionsCompany Name - Modern Technology Solutions

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Washington, District of Columbia, USA

Full-time

Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a Network/System Administrator to join our team. Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the indu

Sr. System Administrator - VMwareJob Title - Sr. System Administrator - VMware

LeidosCompany Name - Leidos

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Odenton, Maryland, USA

Full-time

The Defense group at Leidos has a career opening for a System Administration on a DISA contract. This role is primarily on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: Provide Senior level expertise for VMware environment.Lead as the Subject Matter Expert on all VMware related issues/needs.Provide support for ticket escalation on major outages.Be able to

Printer System AdministratorJob Title - Printer System Administrator

SAICCompany Name - SAIC

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Quantico, Virginia, USA

Full-time

Job ID: 2507612 Location: QUANTICO, VA, US Date Posted: 2025-07-16 Category: Information Technology Subcategory: Technical Svcs Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: No Description Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the

Linux System AdministratorJob Title - Linux System Administrator

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Description Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD. This role requires an individual that has technical experience with administering Linux and Windows servers within a VMware virtual environment. This individual should be detail oriented in order to capture customer inquiries appropriately. This role is responsible for interacting with other administrators to handle service inquiries and problems. Duties include examining customer proble

Windows System AdministratorJob Title - Windows System Administrator

General DynamicsCompany Name - General Dynamics

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Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, System Security, Technical Support Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Systems Administrator Se

System AdministratorJob Title - System Administrator

Base-2 Solutions, LLCCompany Name - Base-2 Solutions, LLC

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Annapolis, Maryland, USA

Full-time

Job Description Base-2 Solutions is seeking a System Administrator (SA-1) to support DevOps team on VISTA TTO. This role requires a self-motivated individual who can collaborate with the development team, capabilities providers, and mission customers to migrate existing applications and services off legacy hardware and onto enterprise compute frameworks. Required Education Five (5) years experience as a SA in programs and contracts of similar scope, type, and complexity is required. Bachelor's

System Administrator 4Job Title - System Administrator 4

Boeing CompanyCompany Name - Boeing Company

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Herndon, Virginia, USA

Full-time

This posting is for a contract assignment and is not a full-time employment offer with Boeing. Candidates selected for roles will be employed as contract workers through a Boeing approved 3rd party for the duration of the specified project. The Boeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS) seeks a System Administrator to join our Mission Systems Operations team in Herndon, VA. Our team focuses on delivering complex solutions in some of the most challenging envi

System Administrator (SA2) with PolyJob Title - System Administrator (SA2) with Poly

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Annapolis, Maryland, USA

Full-time

Job Description THE WORK This role involves comprehensive technical planning and execution across the full system lifecycle, including system integration, verification and validation, cost and risk analysis, and sustainment. Proficiency or exposure to Linux is a plus as many systems rely on Linux-based environments for development, deployment, and operational support. WHO WE ARE At Lockheed Martin, we're a leading aerospace and defense company that's shaping the future of cyber and intelligen