2,840 Results for

Systems Administrator Jobs in Reston, VA

Jobs

Springfield, VA

$140,000–$155,000 / year
Full time

The Senior System Administrator is responsible for overseeing the testing of products from development to operational deployment, working with Scrum Masters and developers through the requirements process and contributing to a robust, organized Backlog and streamlined Roadmap for our customers program. (TS/SCI) CI elgibility required.

22 days ago

Fairfax, VA

$60,000–$80,000 / year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This is an exciting opportunity for a professional to contribute to a growing company, by leveraging their expertise in lead generation, office space planning, workplace solutions, interior solutions, furniture, fixtures & equipment, and office systems.

9 days ago

Washington, DC

$107,900–$195,050

May 21, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

2 days ago

Washington DC, DC

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Manage iOS and Android devices using enterprise MDM tools (MaaS360, Intune).

The MDM Administrator will oversee deployment, configuration, and support of mobile devices across the enterprise.

7 days ago

Washington, DC

$107,900–$195,050

June 22, 2026

2 days ago

Dulles Town Center, VA

The ideal candidate enjoys building positive relationships with employees, and can effectively balance multiple priorities while maintaining confidentiality and accuracy. This role serves as a key member of the Human Resources department, supporting employee onboarding, payroll administration, compliance activities, and day-to-day HR operations.

4 days ago

Chantilly, VA

$73,450–$132,775

April 16, 2026

2 days ago

Springfield, VA

$90,000–$105,000
Full time

System Administrator: 3 years relevant experience with Bachelors in related field; 1 year relevant experience with Masters in related field; or High School Diploma or equivalent and 7 years relevant experience. This position is part of our Cyber and Intelligence division, which plays a critical role in supporting Enterprise-Level Security and Modernization efforts across IT infrastructure, cybersecurity, physical facilities, and personnel operations.

30+ days ago

Springfield, VA

Full time

5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

30+ days ago

Springfield, VA

$55,000–$135,000
Full time

Systems Administrator 4: 10+ years relevant experience with Bachelors; 8 years relevant experience with Masters in related field; or High School Diploma or equivalent and 14 years relevant experience. Systems Administrator 3: 6+ years relevant experience with Bachelors; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience.

30+ days ago

Falls Church, VA

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2+ years of Help Desk / Desktop Support experience in enterprise IT.

Perform device imaging, deployment, and lifecycle management.

30+ days ago

Washington DC, DC

p class="MsoNormal">This position is responsible for maintaining secure and highly available eDiscovery environments, troubleshooting complex application and infrastructure issues, supporting legal hold and compliance initiatives, and partnering with investigative, legal, cybersecurity, and IT stakeholders to ensure operational excellence and data integrity. The ideal candidate will possess extensive experience administering and supporting Relativity and other litigation support platforms, while providing infrastructure, application, and investigative workflow support across the Electronic Discovery Reference Model (EDRM) lifecycle.

5 days ago

McLean, VA

The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.

30+ days ago

McLean, VA

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Review user’s requests for new or modified computer programs to resolve feasibility, cost and time required, compatibility with current system, and computer capabilities, analyze and outline steps required to develop programs, using structured analysis and design, plan, develop, test, and document computer programs, applying knowledge of applicable computer system/platform application. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

30+ days ago

Arlington, VA

$131,300–$237,350

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Design, deploy, upgrade, and administer Active Directory Domain Services, including domain controllers, forests, domains, trusts, and replication topologies (i.e. Manage and optimize Group Policy Objects (GPOs), OU structures, and security baselines; including object management through bulk operations and automation, Troubleshoot and resolve complex AD-related issues, including authentication failures, replication problems, DNS issues, and Kerberos/NTLM problems, Plan and execute Active Directory migrations, consolidations, and upgrades (of both underlying server infrastructure and overall forest/domain functional levels), Develop and maintain disaster recovery, backup, and restore procedures for AD environments (including AD Recycle Bin and authoritative restores), Monitor AD health and performance using tools such as Microsoft System Center, Azure Monitor, or third-party solutions).

2 days ago

Springfield, VA

Full time

5+ years of hands-on systems administration of Microsoft SQL Server (2016 - 2022) and enterprise server applications, specializing in Windows Server Failover Clustering (WSFC), Always On Availability Groups, SQL Server Management Studio (SSMS). 3+ years of experience managing SQL Server integrated within a Microsoft AD domain and forest, including service account security (gMSAs), Kerberos constrained delegation (SPNs), and DNS/DHCP configurations for multi-subnet clusters.

30+ days ago

Arlington, VA

Full time

This role will be responsible for managing database operations across Linux servers, supporting replication through Oracle GoldenGate, and ensuring databases remain secure, available, and properly patched. The ideal candidate brings strong hands-on Oracle administration experience, can work effectively in a secure environment, and is comfortable supporting both ongoing operations and new database deployments.

27 days ago

Springfield, VA

$95,085–$130,000
Full time

Office SharePoint Server (MOSS) and Outlook Web Apps (OWA) 10 provide an enterprise platform 10 share and manage content, knowledge, and applications to empower teamworks quickly find information, and be able to collaborate across the organization. 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

30+ days ago

Fort Belvoir, VA

$85,018–$160,000
Full time

Implementing and maintaining the organization's cybersecurity toolsets, such as endpoint security solutions (ESS), malware protection, network detection & response (NDR), and endpoint detection & response (EDR) . As a Cyber Tools Administrator, you'll play a pivotal role in protecting our digital assets and strengthening our security posture through proactive monitoring, analysis, and implementation of cutting-edge security solutions.

30+ days ago

Chantilly, Virginia

As a key member of our infrastructure support team, you will be responsible for designing, implementing, and maintaining our Windows-based systems, networks, and applications. If you enjoy working with new technologies, enterprise-leading equipment, and have a passion for building and maintaining infrastructures, we would like to speak to you.

28 days ago

Adelphi, Maryland

The administrator also plays a key role in user support, policy implementation, system monitoring, and compliance management in a secure IT infrastructure. The Intermediate Windows Systems Administrator specializes in the installation, configuration, and maintenance of systems across Windows environments.

30+ days ago

Fairfax, VA

$128,887–$184,124
Full time

HII - Mission Technologies is currently seeking a Senior Information System Security Officer (ISSO) to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 10 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Springfield, VA

$120,000–$150,000 / year

The Systems Administrator will support the Exchange, Directory, and Messaging (EDM) team responsible for maintaining core infrastructure services across a large-scale network.

Experience administering and troubleshooting Active Directory, Microsoft Exchange, and Windows Server environments.

8 days ago

McLean, Virginia

p>We are seeking a highly skilled Senior System Administrator to join a dynamic infrastructure team supporting next-generation technologies, including initiatives in the Artificial Intelligence (AI) space.

PGTEK is a true consulting organization dedicated to helping clients achieve their business and technology objectives utilizing our decades of experience and business relationships.

23 days ago

Adelphi, Maryland

8 days ago

Springfield, Virginia

Experience: 4 YearsEducation Bachelors in IT.Location: Springfield, VAClearance: Secret Position Overview: The Linux/Windows Systems Administrator is responsible for the design, implementation, maintenance, and security of the organization's Linux and Windows server infrastructure. Scripting and Automation:Develop and maintain scripts using Bash, Python, or PowerShell to automate routine tasks, streamline processes, and improve system efficiency.

Today

Arlington, VA

10 years of relevant IT systems engineering or systems administration experience supporting enterprise Windows environments. Support incident, change, and configuration management processes in accordance with lifecycle support requirements.

29 days ago

Chantilly, VA

$92,300–$166,850 / year

Configure and administer Windows Server Operating Systems including Group Policy Objects, Active Directory Users and Computers, DNS, Active Directory Sites and Services, WSUS, SQL, and IIS. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

30+ days ago

Columbia, Maryland

Required: Bachelor’s degree in a technical discipline and 15 years’ experience as a System Administrator, OR High school diploma and 20 years’ experience as a System Administrator. Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.

30+ days ago

McLean, Virginia

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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. Established in 2015, Fantom Corp serves Federal customers with top-notch Cybersecurity Architects, Data Scientists/Analysts, Software Engineers/Developers, DevSecOps Engineers, Project Managers, Identity, Credential Access Management (ICAM) services , and Cloud-certified practitioners.

29 days ago

Chantilly, VA

MANTECH seeks a skilled and motivated Windows Systems Administrator to join our team of top Information Technology and Analytic professionals in Chantilly, VA. Requisition R66437 Locations USA-VA-Chantilly Posting Date 03032026 Security Clearance Required TSSCI w Poly Remote Type Onsite Time Type Full time.

30+ days ago

McLean, VA

p>This role requires a professional who is equally comfortable managing Windows-based infrastructure, supporting Linux systems, and implementing modern DevOps practices to improve system reliability, scalability, and operational efficiency.

Credence is seeking a highly skilled Windows Systems Administrator with Linux and DevOps experience to support the Enterprise Sourcing, Medical and Contingency (ESMC) Portfolio Hosting Support Contract.

13 days ago

Chantilly, VA

Must be able to use hands to operate a computer and other office productivity machinery such as a calculator, copy machine, and computer printer. MANTECH seeks a skilled and motivated Windows Systems Administrator to join our team of top Information Technology and Analytic professionals in Chantilly, VA.

30+ days ago

$80,520–$161,000 / year

This role is responsible for the administration, security, maintenance, and operational support of Windows print servers, Xerox print devices, and Xerox Device Manager (XDM) servers across both NIPR and SIPR networks. This individual will serve as the subject matter expert (SME) for Xerox printing systems and collaborate closely with USAF personnel, Xerox teams, and IT stakeholders to ensure reliable, secure, and compliant operations.

30+ days ago

Tysons Corner, VA

$125,000–$200,000 / year

The MIL Corporation (MIL) is a dynamic workforce of industry professionals who deliver world-class solutions in cyber, engineering, financial management, and information technology - and we are looking for candidates like you!

Installing, configuring and removing system hardware (servers, workstation, monitors, printers, plotters, scanners, transceivers, network interface cards, network physical links, etc.).

30+ days ago

Reston, Virginia

Linux Systems Administrator, UNIX Systems Administrator, PeopleSoft Administrator, Oracle Database Administrator, Enterprise Systems Administrator, Middleware Administrator, Application Systems Administrator, Database Systems Engineer, IT Infrastructure Engineer, Cloud Systems Administrator, etc. Computer Science, Information Technology, Systems Engineering, Computer Engineering, Information Systems, Database Administration, Network Engineering, Cybersecurity, Data Science, Applied Mathematics, etc.

30+ days ago

$103,600–$155,400 / year

Preferred Qualifications: The ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, MCSE (or similar Microsoft cert), and 6 years of Windows Server, VMWare, Active Directory, Microsoft Exchange, and Group Policy administration experience within classified environments. Candidates must meet the U.S. Government 8140 baseline certification requirements (8570 equivalent) for a Principal Computer Systems Analyst - IAT Level II (examples: Security+ CE, CCNA-Security, CND, CySA+ , RHCSA).

20 days ago

Reston, VA

Full time

Request and Reporting System requests; verify accesses; obtain approvals, and serve as a liaison between users and other support offices to resolve/fulfill IT and access administration problems/requirements).

Coordinate projects with appropriate service proviclers and customers, identify/resolve project issues, and keep customers/project team members informed of projects' statuses.

30+ days ago

Bethesda, MD

$73,450–$132,775 / year

Leidos Digital Modernization is seeking a skilled SCCM/Windows Systems Administrator to support the Defense Intelligence Agency (DIA) National Digital Exploitation & OSINT Center (NDOC) IT Operations and Maintenance (O&M) program. Manage and support Public Key Infrastructure (PKI) services, including certificate issuance, renewal, revocation, and troubleshooting for Windows servers, applications, and user authentication mechanisms.

26 days ago

Arlington, Virginia

As a Windows and Active Directory Systems Administrator on our multi -disciplinary project, you'll ensure the Active Directory infrastructure is functional and highly available, and constantly look for ways to make the infrastructure better using the latest technology and the best implementation strategies. We’re looking for a senior Windows systems administrator specialized in Active Directory administration to help us configure and maintain high availability domain controllers, forests, and federations.

Today

Reston, VA

$70–$90 / hour

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

18 days ago

Reston, VA

$73,450–$132,775 / year

This includes responding appropriately to alerts and events and responding to incidents from triage through resolution, including escalations, where appropriate; conducting infrastructure repairs, including directing remote activities to maintain operational effectiveness for services; providing root cause analysis documentation in accordance with Government procedures, and documenting daily shift activities in appropriate reporting and ticketing tools and ensure proper pass down of any outstanding issues.

Database & SQL Certification/Training: Completed training or certification in database programming or SQL querying, such as Microsoft Certified: Azure Database Administrator Associate (DP-300), Oracle Database SQL Certified Associate, or equivalent structured coursework.

14 days ago

Bethesda, Maryland

Leidos Digital Modernization is seeking a skilled SCCM/Windows Systems Administrator to support the Defense Intelligence Agency (DIA) National Digital Exploitation & OSINT Center (NDOC) IT Operations and Maintenance (O&M) program. June 4, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

27 days ago

McLean, Virginia

As the Senior Systems Administrator, you will monitor and maintain corporate communication systems related to email and messaging; troubleshoot hardware, software, and network problems pertaining to the operation of Microsoft Exchange Servers in a Windows Active Directory environment; and oversee the status of issues related to messaging systems with the corporation and ensure that issues are resolved, documented, and closed in a timely manner.

Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness; must possess planning/organizing skills and be able to work under deadlines.

9 days ago

McLean, VA

$101,343–$150,000 / year

As the Senior Systems Administrator, you will monitor and maintain corporate communication systems related to email and messaging; troubleshoot hardware, software, and network problems pertaining to the operation of Microsoft Exchange Servers in a Windows Active Directory environment; and oversee the status of issues related to messaging systems with the corporation and ensure that issues are resolved, documented, and closed in a timely manner. Work Environment, Physical Demands, and Mental Demands: Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness; must possess planning/organizing skills and be able to work under deadlines.

30+ days ago

Chantilly, Virginia

Network Engineer, Systems Administrator, IT Infrastructure Engineer, Network Systems Administrator, Network Administrator, Systems Engineer, Cloud Systems Administrator, Network Operations Engineer, IT Support Engineer, Network Security Engineer, etc. Computer Science, Information Technology, Network Engineering, Systems Engineering, Computer Engineering, Information Systems, Cybersecurity, Electrical Engineering, Data Science, Applied Mathematics, etc.

30+ days ago

Arlington, Virginia

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Coordinates with OMC IT leadership and JSP to resolve complex infrastructure incidents; independently determines escalation paths and corrective actions for the most complex OMC IT issues. .

Leads O&M support for NIPRNET, SIPRNET, and JWICS system infrastructure (~400 users) and SAP domain, storage, SQL database, workstation, and printer infrastructure (~150 users); administers and maintains Microsoft Active Directory and GPOs. .

2 days ago

Lorton, VA

p>The Systems Administrator will manage and troubleshoot enterprise networks, servers, virtual environments, and security configurations while collaborating on the design and maintenance of the CALEA Continuity of Operations (COOP) site in Scottsdale, AZ. Clearance: Must be able to obtain and maintain DHS/ICE Fitness Determination (Public Trust), including favorable preliminary Fitness and full NBIS eAPP investigation (SF-85P, OF-306, SSA-89, fingerprints, PREA questionnaire if required).

23 days ago

Germantown, MD

$100,000–$120,000 / year

Description: Based on-site in Germantown, Maryland, the IT Systems Administrator will support and maintain the organization''s core IT infrastructure, including Hybrid Azure AD (Entra ID), Microsoft 365 GCC High, Windows Server environments, endpoint management platforms, virtualization technologies, and secure network services. This position manages hybrid identity services, Microsoft 365 GCC High, Windows infrastructure, virtualization platforms, cybersecurity controls, and network services while ensuring alignment with CMMC Level 2 and NIST SP 800-171 requirements.

12 days ago

Herndon, Virginia

Our work depends on a Systems Administrator Sr Principal joining our team to design, implement and support Microsoft 365 Teams, Unified Communication Collaboration services, Voice, telephony and related emerging technologies to service, protect and secure GDIT’s position in the marketplace. Collaborate with the M365 Services and Database Team to implement and deliver outstanding support for Microsoft 365 Teams, Unified Communications & Collaboration services, Voice, Telephony and related emerging technologies.

16 days ago

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Systems Administrator Jobs in Reston, VA

(TS/SCI) Systems Administrator (NGA Contract) Confidential Client

Sales Administrator Jobot

Systems Engineer Leidos

Mobile Device Management Administrator NuAxis Innovations

Lead Systems Engineer Leidos

HR & Office Administrator Commercial Express HVAC LLC

Linux System Engineer Leidos

Systems Administrator Company Confidential

Hyperconverged Infrastructure (HCI) Systems Administrator Company Confidential

Systems Administrator - MAJESTIC 26755 Company Confidential

Help Desk Specialist NuAxis Innovations

eDiscovery Application Support Specialist NuAxis Innovations

ServiceNow Architect Capgemini Government Solutions LLC

Sr. ServiceNow Business Analyst Capgemini Government Solutions LLC

Active Directory Architect / Engineer Leidos

SQL Database Administrator - Majestic Company Confidential

Database Administrator - Secret Cleared Global TechPro, LLC

SharePoint Content Administrator Company Confidential

Cyber Tools Administrator - Majestic Company Confidential

Senior Windows Systems Administrator (Ci Polygraph Required) NorthHill Technology

Intermediate Windows Systems Administrator Black Bear Technology Solutions

Information System Security Officer (Engineer Info Assurance 4) Company Confidential

Systems Administrator Zp Group Llc

Windows Systems Administrator - McLean, VA - TS/SCI PGTEK

Intermediate Windows Systems Administrator Kwaan Bear IT Solutions

Linux/Windows Systems Administrator Ascension Federal Services

Windows Systems Administrator Quadrant Inc

Windows Systems Administrator Leidos Holdings Inc

Windows Systems Administrator The Josef Group

Windows Systems Administrator Fantom Corporation

Windows Systems Administrator ManTech International Corp

Windows Systems Administrator (Windows, Linux & DevOps) Credence

Windows Systems Administrator ManTech

Senior Print Systems Administrator Xerox Corp

Systems Administrator with TS/SCI, FS (Systems Administration, Associate) The Mil Corp

Linux / UNIX Systems Administrator (PeopleSoft / Oracle) Cymertek

Principal Windows Systems Administrator - Polygraph Northrop Grumman Corp

Systems Administrator - Active Security Clearance Cadre

SCCM/Windows Systems Administrator Leidos Holdings Inc

Lead Systems Administrator PostMilitary

Sr Systems Administrator StratAcuity Staffing Partners Inc

Senior Systems Administrator Leidos Holdings Inc

SCCM/Windows Systems Administrator Leidos

Senior Systems Administrator Amentum

Senior Systems Administrator Amentum Services Inc

Network Engineer / Systems Administrator (SA) Cymertek

Senior Systems Administrator (Lead) Empower AI Inc.

SME Systems Administrator Revolutional, LLC

IT Systems Administrator Herrick Technology Laboratories Inc.

M365 Systems Administrator Sr Principal GD Information Technology

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