Systems Administrator Jobs in Ashburn, VA

21 - 40 of 205 Jobs

Windows Systems AdministratorJob Title - Windows Systems Administrator

SAICCompany Name - SAIC

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Adelphi, Maryland, USA

Full-time

Job ID: 2507346 Location: ADELPHI, MD, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a proven Windows Systems Administrator to join the Army Research Laboratory (ARL) Information Technology (IT) Modernization program and support the full range of Enterpris

Jira Administrator, Systems AdministratorJob Title - Jira Administrator, Systems Administrator

Alpha Omega Integration LLCCompany Name - Alpha Omega Integration LLC

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Silver Spring, Maryland, USA

Full-time

Job Title: Jira Administrator Clearance Required: Public Trust Work Location: Silver Spring, MD (Remote) Alpha Omega is seeking a qualified Jira Administrator to support the NESDIS Integrated Information Services-II (NIIS-II) contract who will be responsible for the support for our NOAA client in Silver Spring, MD. The Atlassian Jira Administrator will manage Jira Software (Data Center), Jira Service Management (Data Center) and Confluence (Data Center). Day-to-day responsibilities will includ

Systems Administrator - SMEJob Title - Systems Administrator - SME

Realm OneCompany Name - Realm One

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Tysons, Virginia, USA

Full-time

We're searching for talented individuals who provide systems administration support services for a sophisticated enterprise computing infrastructure. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us! Job Description: We are looking for a Systems Administrator - SME to join our technology-based program supporting a key g

Senior Systems AdministratorJob Title - Senior Systems Administrator

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Washington, District of Columbia, USA

Full-time

Job Number: R0221565 Systems Administrator, Senior The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within classified environments supporting agencies with a solid background in windows operating systems to help u

IT Systems Administrator / Systems AnalysisJob Title - IT Systems Administrator / Systems Analysis

Modern Technology SolutionsCompany Name - Modern Technology Solutions

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Chantilly, Virginia, USA

Full-time

Overview Modern Technology Solutions, Inc. (MTSI) is seeking multiple skill levels of IT Systems Admins. An active TS/SCI security clearance with a polygraph is required. 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

Systems Administrator IIJob Title - Systems Administrator II

Robert HalfCompany Name - Robert Half

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Washington, District of Columbia, USA

Contract

Description We are looking for a skilled Systems Administrator II to join our team on a contract basis in Washington, District of Columbia. In this role, you will be responsible for ensuring the seamless operation, configuration, and maintenance of both physical and virtual systems. This position requires a proactive approach to troubleshooting, optimizing system performance, and implementing critical updates to maintain system integrity and reliability. Responsibilities: Install, configure, an

VMware Systems AdministratorJob Title - VMware Systems Administrator

SAICCompany Name - SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506948 Location: WASHINGTON, DC, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: Yes, 25 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: No Description SAIC is hiring a VMware Systems Administrator to support HHS On-Site in Washington, DC. The VMware Systems Administrator will provide ongoing support to Executives

Systems Administrator IVJob Title - Systems Administrator IV

Robert HalfCompany Name - Robert Half

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Washington, District of Columbia, USA

Contract

Description We are looking for an experienced Systems Administrator IV to join our team in Washington, District of Columbia. In this long-term contract position, you will manage and optimize complex IT systems and infrastructures, ensuring their efficient operation and compliance with industry standards. This role offers an exciting opportunity to apply advanced technical knowledge to solve challenging issues and contribute to the success of large-scale projects. Responsibilities: Oversee the i

Systems Administrator IIJob Title - Systems Administrator II

Robert HalfCompany Name - Robert Half

•

Washington, District of Columbia, USA

Contract

Description We are looking for an experienced Systems Administrator II to join our team in Washington, District of Columbia. In this long-term contract position, you will play a key role in maintaining and optimizing system infrastructures, ensuring they meet organizational needs and industry standards. This is an excellent opportunity for someone who thrives in a collaborative environment and enjoys solving technical challenges with innovative solutions. Key Responsibilities: Administer and ma

Systems AdministratorJob Title - Systems Administrator

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

The Multi-Domain Solutions (MDS) division at Leidos is seeking a detail-oriented and experienced Systems Administrator to manage the installation, configuration, administration, and maintenance of enterprise systems and associated hardware. The ideal candidate will play a key role in supporting IT infrastructure, ensuring system reliability, performance, and security across physical and virtual environments. Primary Responsibilities: Install, configure, and maintain systems, including servers a

Systems Administrator Expert - Backup and ConfigurationJob Title - Systems Administrator Expert - Backup and Configuration

General DynamicsCompany Name - General Dynamics

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Washington, District of Columbia, USA

Full-time

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: Systems Administration Job Qualifications: Skills: Backup and Recovery (Software), Computer Backups, Information Technology (IT) Systems Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: Systems Administrator Expert - Backup and Configuration Transform technology into oppor

Systems Administrator - TS/SCI w/Polygraph (3rd Shift)Job Title - Systems Administrator - TS/SCI w/Polygraph (3rd Shift)

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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McLean, Virginia, USA

Full-time

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: Systems Administration Job Qualifications: Skills: Communication, Computer Systems, Troubleshooting, Video Processing Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology has an immediate opening for a Syste

Systems Administrator - TS/SCI w/Polygraph (3rd Shift)Job Title - Systems Administrator - TS/SCI w/Polygraph (3rd Shift)

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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McLean, Virginia, USA

Full-time

Senior Systems AdministratorJob Title - Senior Systems Administrator

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. The Leidos National Security Sector (NSS) combines technology-enabled services and mission software capabilities in th

Systems Administrator - TS/SCI w/Polygraph (3rd Shift)Job Title - Systems Administrator - TS/SCI w/Polygraph (3rd Shift)

General DynamicsCompany Name - General Dynamics

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McLean, Virginia, USA

Full-time

Principal Systems AdministratorJob Title - Principal Systems Administrator

ManTechCompany Name - ManTech

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Arlington, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Systems Administrator to join our team in Pentagon, VA. The position is onsite. Responsibilities include but are not limited to: Provide specialized support and troubleshooting for VIP users, including hardware, software, network, and application issuesManage and maintain computer systems, servers, and other IT infrastructure, ensuring optimal performance and securityManage VIP user accounts, permissions, and security access withi

Systems Administrator, JuniorJob Title - Systems Administrator, Junior

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Systems Administrator / Top Secret / Onsite: Arlington, VAJob Title - Systems Administrator / Top Secret / Onsite: Arlington, VA

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Arlington, Virginia, USA

Full-time

Job Description The Advanced Concepts Lab (ACL) at Lockheed Martin's Advanced Technology Laboratories (ATL) is seeking an IT Systems Engineer/Systems Administrator with a demonstrated ability to independently develop solutions to systems administration challenges in heterogeneous computing environments. The selected candidate will serve as a system and network administrator for multiple program and internal R&D systems that support the research and development activities carried out by ACL's en

Senior Systems Administrator, Classified ITJob Title - Senior Systems Administrator, Classified IT

Aduril IndustriesCompany Name - Aduril Industries

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Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Principal Systems AdministratorJob Title - Principal Systems Administrator

ManTechCompany Name - ManTech

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Arlington, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Systems Administrator to join our team in Pentagon, VA. The position is onsite. Responsibilities include but are not limited to: Provide specialized support and troubleshooting for VIP users, including hardware, software, network, and application issues Manage and maintain computer systems, servers, and other IT infrastructure, ensuring optimal performance and security Manage VIP user accounts, permissions, and security access