4,090 Results for

Systems Administrator Jobs in Northern Virginia, VA

Jobs

Linux System Administrator Johns Hopkins Applied Physics Laboratory (APL)

Laurel, MD

In this role, you will apply Risk Management Framework (RMF) principles, develop new IT capabilities in secure networks, and provide advanced system administration across complex classified infrastructures, helping drive innovation, security, and operational excellence. Have demonstrated experience working with the following operating systems and technologies: Windows Server 2022, Windows 11, and Red Hat Enterprise Linux 8, 9, and 10 or greater, Active Directory integration and authentication services, and DNS, Group Policy and cross-platform access issues.

3 days ago

Senior System Administrator Team Lead Leidos

Alexandria, VA

$131,300–$237,350 / year

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 . The Senior System Administrator Team Lead will work within a team engineers, developers and system administrators adding new capabilities to our enclaves, as well as ensuring the existing systems are secure and performing as intended.

30+ days ago

Systems Engineer – Data & Analysis Infrastructure Johns Hopkins Applied Physics Laboratory (APL)

Laurel, MD

Possess a BS degree in systems engineering, computer science, computer engineering, engineering science, or related field, or have relevant certifications (such as CompTIA Network+, CompTIA Server+, Linux certifications, etc.) and equivalent experience in systems engineering responsibilities including: developing use cases and requirements, test planning, and performing analysis to balance cost, schedule, and risk. The Signal and Systems Analysis Group (KTA) provides data-driven design and analytical assessments of Anti-Submarine Warfare (ASW) operator in-the-loop system performance to advance the warfighting capabilities of developmental and fielded systems across multiple US Navy domains.

4 days ago

Cloud Security Administrator Leidos

Adelphi, MD

$107,900–$195,050 / year

Working knowledge of AWS security services, including IAM, CloudTrail, CloudWatch, Security Hub, GuardDuty, Systems Manager, KMS, and VPC security controls. In this role, you'll help secure and sustain AWS cloud environments by managing security controls, identifying vulnerabilities, coordinating remediation, and supporting continuous compliance monitoring.

2 days ago

Lead Systems Engineer Leidos

Gaithersburg, MD

$87,100–$157,450 / year

Develop low-level infrastructure designs from approved architectural concepts, including rack elevation drawings, wiring lists, port/patch-panel assignments, cable schedules, and bills of material. 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 .

30+ days ago

Splunk Administrator Leidos

Suitland, MD

$107,900–$195,050 / year

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 . August 31, 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.

16 days ago

Systems Integration Technician Leidos

Arlington, VA

$69,550–$125,725 / year

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 . Experience with ACAS, Azure, DHCP, DNS, HBSS, Hyper-V, Microsoft 365, MECM, SharePoint, SMTP, and Active Directory, as well as an understanding of help desk ticketing tools including Microsoft System Center and ServiceNow.

6 days ago

Tenable RHEL ACAS Administrator Leidos

Alexandria, VA

$131,300–$237,350 / year

Activities that this position will execute include system administration for all Tenable ACAS Red Hat Enterprise Linux (RHEL) servers, performing systems analysis, modifying / updating, troubleshooting Tenable applications based on results of analysis, deployment of application and tools, performing testing of deployed application and tools, and communicating updates to Tenable ACAS Lead and customers as required. 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 .

4 days ago

Information System Security Officer Leidos

Springfield, VA

$107,900–$195,050 / year

The Digital Sector at Leidos currently has an opening for an Information System Security Officer (MID) supporting the Homeland Enterprise Information Technology Secure Services and Support (HEITS) Contract as part of the Department of Homeland Security (DHS) Insider Threat Program (ITP). The ITP mission is to identify insider threats to the department by utilizing advanced analytics, monitoring, and data correlation which in turn help address and eliminate potential threat actors from compromising the DHS mission in safeguarding the homeland.

30+ days ago

Dialysis Facility Administrator U.S. Renal Care

Bowie, MD

Continuously monitor to ensure that a safe and sanitary physical environment is maintained throughout the facility; that all equipment is maintained and functions properly; and that adequate and appropriate inventory levels of all supplies are available and used correctly. STAFF DEVELOPMENT/ RETENTION Ensure all staff meet required qualifications for position held and perform duties within limitations established by and in accordance with company policy/procedures, health care professionals practice acts, applicable state and federal laws and regulations.

30+ days ago

DRSN Engineer/Administrator Govcio LLC

Herndon, VA

$110,000–$125,000 / year

Possesses expert-level IT field support and leadership skills, enabling the management and direction of complex service request fulfillment and network/computer systems administration across multiple operating systems. Exhibits leadership in evaluating service performance, actively managing and documenting tickets, ensuring high-quality resolution, system optimization, and recommending significant changes for overall service delivery.

3 days ago

Database Administrator Govcio LLC

Fort Meade, MD

$126,000–$146,000 / year

Responsibilities: The Database Administrator (Data Platform Engineer) establishes the data ingest and ELT environment required to transform autonomous pentesting outputs into structured, AI-ready datasets. Experience managing secure data pipelines including automated ingestion and transformation workflows.

2 days ago

Deputy Information Technology Lead -TS/SCI Polygraph Leidos

Annapolis Junction, MD

$154,050–$278,475 / year

The Deputy IT Lead reports to the IT Lead and will work closely with the Operations Lead and Program Management Office (PMO) to provide leadership in architecture, design, development, requirements analysis, data flow, network design and implementation, testing, and documentation for program systems. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

12 days ago

Systems Administrator Amentum

Hanover, Maryland

$140,000–$190,000 / 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.

30+ days ago

Senior Linux/Windows Systems Administrator Ascension Federal Services

Springfield, Virginia

Location: Springfield, VA Clearance: TS/SCI 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.

30+ days ago

Windows Systems Administrator - TS/SCI w/Polygraph General Dynamics Information Technology

McLean, Virginia

Demonstrated experience with Windows systems engineering and administration, including MSSQL databases, Active Directory Certificate Services (ADCS), VM clusters, Hyper-V, Data Protection Manager, and PowerShell scripting. 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.

4 days ago

Sr. Windows Systems Administrator Astrion

Columbia, Maryland

$145,000–$165,000 / year

Astrion has an exciting opportunity for a highly experienced Senior Windows Administrator to build, secure, and sustain the Windows Server estate, the Windows 11 workstation fleet, and the Active Directory and Windows network services that run across three or more isolated classified networks supporting Department of Defense/Department of War (DoD/DoW) environments in Columbia, MD. The ideal candidate brings deep Windows Server and Active Directory expertise, extensive experience operating inside closed and air-gapped classified enclaves, and a proven record of building and maintaining systems in compliance with Risk Management Framework (RMF) , DoD STIG , and Comply-to-Connect (C2C) requirements.

20 days ago

Windows Systems Administrator Bart & Associates

Alexandria, VA

$140,000–$200,000 / year

B&A is proud to offer three robust individual and family medical plans to full time employees, including a Health Savings Account (HSA) option as well as two tiers of dental coverage, vision, life & AD&D, disability, accident, hospital indemnity, and critical illness insurance. In recognition of all these efforts, B&A has been named a Companies as Responsive Employers (CARE) award recipient by Northern Virginia Family Services and nominated by the Northern Virginia Chamber of Commerce for Outstanding Corporate Citizenship Award.

30+ days ago

Windows Systems Administrator Bart & Associates Inc

Alexandria, VA

$140,000–$200,000 / year

In recognition of all these efforts, B&A has been named a Companies as Responsive Employers (CARE) award recipient by Northern Virginia Family Services and nominated by the Northern Virginia Chamber of Commerce for Outstanding Corporate Citizenship Award. B&A is proud to offer three robust individual and family medical plans to full time employees, including a Health Savings Account (HSA) option as well as two tiers of dental coverage, vision, life & AD&D, disability, accident, hospital indemnity, and critical illness insurance.

30+ days ago

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Systems Administrator Jobs in Northern Virginia, VA

Linux System Administrator Johns Hopkins Applied Physics Laboratory (APL)

Senior System Administrator Team Lead Leidos

Systems Engineer – Data & Analysis Infrastructure Johns Hopkins Applied Physics Laboratory (APL)

Cloud Security Administrator Leidos

Lead Systems Engineer Leidos

Splunk Administrator Leidos

Systems Integration Technician Leidos

Tenable RHEL ACAS Administrator Leidos

Information System Security Officer Leidos

Dialysis Facility Administrator U.S. Renal Care

DRSN Engineer/Administrator Govcio LLC

Database Administrator Govcio LLC

Deputy Information Technology Lead -TS/SCI Polygraph Leidos

Systems Administrator Amentum

Senior Linux/Windows Systems Administrator Ascension Federal Services

Windows Systems Administrator - TS/SCI w/Polygraph General Dynamics Information Technology

Sr. Windows Systems Administrator Astrion

Windows Systems Administrator Bart & Associates

Windows Systems Administrator Bart & Associates Inc

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