1,662 Results for

Systems Administrator Jobs in Mclean, VA

Jobs

Hanover, MD

$165,000–$175,000 / year

The Windows Systems Administrator will be involved in the testing, preparation and deployment of Active Directory GPO's and RBAC as well as automated server and workstation imaging and patching utilizing Windows MCM. responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

26 days ago

Hanover, Maryland

The Windows Systems Administrator will be involved in the testing, preparation and deployment of Active Directory GPO’s and RBAC as well as automated server and workstation imaging and patching utilizing Windows MCM.

responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

27 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.

7 days ago

McLean, VA

$185,000–$265,000

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.

22 days ago

Annapolis Junction, Maryland

Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

Join our Talent Community to stay up to date on our career opportunities and events at. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

15 days ago

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.

28 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

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

Washington, DC

$55–$65 / 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.

20 days ago

Chantilly, Virginia

Our expertise spans four core technology domains—Network Modernization, Hybrid Cloud, Cybersecurity, and Enterprise IT—empowering our clients with cutting-edge solutions tailored to their evolving needs. Description:

Ready Support Services LLC, a Tyto Athene company, is searching for an experienced and skilled Senior Windows System Administrator to join our IT team.

13 days ago

Chantilly, VA

$92,300–$166,850 / year

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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

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.

28 days ago

McLean, VA

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.

12 days ago

Adelphi, MD

$82,000–$138,000 / year

Several factors influence the final salary or hourly rate, including but not limited to contract wage determinations, relevant work experience, role-specific skills and competencies, geographic location, educational background, certifications, and federal government contract labor categories. We are certified in ISO 9001:2015, ISO 20000-1:2018, and ISO 27001:2022; CMMC Level 2 certified; and appraised at CMMI Maturity Level 3 for Services and Development.

30+ days ago

$103,600–$155,400 / year

p>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).

19 days ago

Reston, VA

$70–$90 / hour

17 days ago

McLean, VA

$77,600–$176,000 / year

You will troubleshoot complex issues to meet customer needs and serve as backup support to the lead System Administrator and Architect, ensuring continuity of operations and reducing reliance on a single technical resource, particularly as the program evolves toward hybrid and cloud-native architecture patterns. You will provide guidance on overall system design, support network and infrastructure integration, manage patching and lifecycle updates across lower environments while supporting production stability as needed.

25 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.

15 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

$80,000–$128,000 / year

p>The Space Weather Ground Services (SWGS) is responsible for comprehensive ground services for all SWX projects, ensuring successful implementation and operation of observing assets and ensuring the continuity of space weather measurements made by SWFO-L1 and the GOES-R series satellites. NOAA's Space Weather Next (SWX) program maintains and extends space weather observations from various vantage points, selected to most efficiently provide comprehensive knowledge of the Sun and the near-Earth space environment needed to protect our technological infrastructure.

30+ days ago

Quantico, VA

Full time

b>Required Qualifications:

Education & Experience:
- Bachelors ‘s degree in Information Technology, Computer Science, Systems Engineering, or related field with 5+ years of relevant experience required; 7 + years may be substituted in lieu of a degree. Design & Implementation
  - Design and deploy virtual infrastructure solutions—including clusters, shared storage, networking, and lifecycle management—following best practices for performance and security.

3 days ago

Suitland, MD

$103,800–$218,100 / year

p>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.

Expert Knowledge:

In-depth understanding of core Microsoft products including Domain Controller (DC), Active Directory (AD), Domain Name Server (DNS), Windows Server Update Services (WSUS), Exchange, and System Center Configuration Manager (SCCM).

30+ days ago

$30–$115 / hour

p>Operations, Documentation, and Customer Support:

Coordinate with network/software/system engineers, ISSM/ISSO partners, desktop teams, project managers, and end users to keep systems operating smoothly. In terms of professional development, 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.

30+ days ago

Chantilly, VA

This commitment, aligned with our core Vision and Values of Integrity, Respect, and Responsibility, allows us to leverage differences, encourage innovation, and expand our success in the global marketplace, ultimately enabling us to best serve our clients. We ensure all individuals are treated with fairness, respect, and dignity, recognizing the strength that comes from a workforce rich in diverse experiences, perspectives, and skills.

4 days ago

Reston, VA

p>Active TS/SCI + CI Poly clearance HS, 9-11 years of relevant experience; BS, 3-5 years; MS, 0-3 One of the Following DoD 8570/CS-NET-451 certifications is required: Security+ CE SSCP CySA+ GSEC DESIRED QUALIFICATIONS. "Technology moving at the speed of thought" embodies these principles - the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers.

30+ days ago

Suitland, Maryland

p>Pay Range:

Expert Knowledge:

30+ days ago

$103,800–$218,100 / year

The Windows System Administrator will manage user accounts across the entire FEMA enterprise and manage Group Policy Objects (GPOs) enterprise-wide to enforce security controls and permissions, ensuring consistent security configurations across all Windows systems.

Pay Range:

17 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.

25 days ago

p>Since 2006, MAXISIQ has advanced the state of Cyber RDT&E by bringing together industry expertise in software, hardware, communications and security, and leveraging decades of operational experience to deliver exceptional value to communities and the critical missions they support.

Provide technical configuration, setup, installation services, hardware and coordination for application projects and install security updates and patches.

30+ days ago

Washington, DC

Full time

a href="https://cdn.phenompeople.com/CareerConnectResources/prod/PABRGLOBAL/images/IER_RighttoWorkPosterEnglish-1633725263381.png" rel="nofollow">E-Verify Right to Work Poster.

Demonstrated experience and abilities to an Administer, configure, and maintain enterprise Windows Server environments to ensure high availability, reliability, and performance .

30+ 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

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.

8 days ago

Bethesda, Maryland

June 4, 2026

26 days ago

National Harbor, Maryland

Pay Range:

21 days ago

Germantown, MD

$100,000–$120,000 / year

p>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.

11 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.

13 days ago

Reston, VA

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

Maryland

$100,000–$130,000 / year

div> Overview:

We are seeking a Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Systems Administrator maintains smooth operation of multi-user computer systems, including coordination with network engineers.

One of the following DoD 8570/CS-NET-451 certifications is required:

Security+ CE .

30+ days ago

Fairfax, VA

$114,000–$171,000 / year

p>Basic Qualifications:

Principal: Bachelor's degree in information technology, Computer Science, or related field with 5 years of IT experience; Master's degree with 3 years of IT experience; Associate degree with 7 years of IT experience; OR a HS Diploma / GED with 9 years of IT experience is required.
Maintain smooth operation of multi-user computer systems, including coordination with network, software, and system engineers, PC desktop technicians, project managers, end users, and customer and IT management.

30+ days ago

Reston, VA

$86,600–$181,800 / year

The Technical Development Team will work closely with functional resources, solution developers, database administrators, information assurance specialists and configuration change management resources to perform analysis, design and development, testing, and deployment of changes to existing software as well as new solutions for the customer.

Pay Range:

17 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. .

1 day ago

$160,000–$180,000 / year

Configure and manage UNIX and Windows operating systems and install loads operating system software, troubleshoots, maintain integrity, and configure network components along with implementing operating systems enhancements to improve reliability and performance.

Javelin Compensation Details: $160,000 - $175,000 The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued.

30+ 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).

22 days ago

Herndon, Virginia

$112,000–$179,000 / year

p style="margin:0px">Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. Systems Administrator IV supports ongoing Authorization to Operate (ATO) activities by maintaining system security posture, generating technical artifacts, and implementing approved security controls under the direction of Information System Security Officers (ISSOs), System Engineers, and audit leads or audit SMEs.

30+ days ago

College Park, Maryland

$55,000–$60,000 / year

Apply directly through our website: Sev1Tech Careers and use the hashtag #joinSev1Tech to connect with us on social media!

Must have 1-3 years experience with Windows Systems Administration:

Create and manage user accounts and permissions, including adding or removing users and setting up group policies.

4 days ago

Rockville, Maryland

$90,000–$122,000 / year

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Senior Windows 2022 / 2019/2016 administrator responsible for server administrations, installation and maintenance services for 100 physical and virtual servers in a Microsoft Active Directory environment. The salary range displayed is an estimate only and is not a guarantee of compensation or salary and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements.

30+ days ago

These capabilities include:

Systems running Red Hat, CentOS, SUSE and custom vendor-specific operating systems, with high-speed shared storage (lustre, and gpfs as examples), along with dedicated high-speed low latency network interconnects like Infiniband and Slingshot.
Configure and manage Linux, Unix, and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.

30+ days ago

Chantilly, VA

In addition to maintaining a private Customer Cloud, candidates should expect to gain experience in new administration technologies; tackle individual and group projects; work closely with other IT professionals; and participate in a growing ever-changing mission. By providing the information below and checking the boxes referenced, you acknowledge and consent to SAIC''s Privacy Policy to include access and use of your information for the purposes of sharing your information for possible employment recruitment effects by SAIC and it''s third party vendors.

30+ days ago

Springfield, VA

$55,000–$135,000 / year

Experience with office administration or program support in government or defense settings Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) Strong written and verbal communication skills Ability to manage multiple tasks and priorities in fast-paced environments. We will be hiring several people for these roles at various levels with salary ranges outlined here: Systems Administrator 1: $61,800 - $87,000 Systems Administrator 2: $75,872 - $107,194 Systems Administrator 3: $92,160 - $131,680 Systems Administrator 4: $112,621 - $160,563.

30+ days ago

Laurel, MD

$128,000–$214,400 / year

There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

14 days ago

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Systems Administrator Jobs in Mclean, VA

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