Senior Windows Systems Administrator BAE Systems PlcSenior Windows Systems AdministratorAnnapolis Junction, MD$146,670–$249,330 / yearAbout BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Infrastructure Oversight: Monitor and optimize a sophisticated ecosystem comprising VMware server hosts, Windows and Linux guest servers, and Virtual Desktop Infrastructure (VDI).
Systems Administrator with TS/SCI, FS (Systems Administration, Associate) The Mil CorpSystems Administrator with TS/SCI, FS (Systems Administration, Associate)Tysons Corner, VA$125,000–$200,000 / yearThe 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.).
Sr. Windows Systems Administrator AstrionSr. Windows Systems AdministratorColumbia, Maryland$145,000–$165,000 / yearAstrion 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.
Windows Systems Administrator Tetrad Digital Integrity LLCWindows Systems AdministratorArlington, VAThis program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. Apply today to become part of the Leidos team that is assisting CESO as they migrate to a high security cloud environment by providing network and communication services, monitoring services, and system administration.
Sr. Windows Systems Administrator Axient LLCSr. Windows Systems AdministratorColumbia, MD$145,000–$165,000 / yearAstrion 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.
Sr. Windows Systems Administrator TS/SCI Poly Leidos Holdings IncSr. Windows Systems Administrator TS/SCI PolyAnnapolis Junction, MD$116,350–$210,325 / yearThis role also includes supporting server, router, and firewall configuration, as well as performing security management and application performance optimization activities in an environment made up of VMware server hosts, Windows and Linux guest servers, and Virtual Desktop Infrastructure (VDI). Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans, ensuring vulnerabilities are identified and remediated quickly and accurately.
NewWindows Systems Administrator / Active Secret Peraton IncWindows Systems Administrator / Active SecretBeltsville, MD$112,000–$179,000 / yearMust hold (or obtain prior to start) at least one approved certification, maintained as a condition of employment: CASP+ CE, CCNA Cyber Ops, CCNA‑Security, CCNP Security, CEH, CFR, CISA, CISSP (or Associate), Cloud+, CySA+, GCED, GCIA, GCIH, GICSP, SCYBER, VCA‑DCV, PPDA, Agile IC, or SNOW App Dev. You will play a key role in vulnerability remediation by applying STIG-compliant configurations, monitoring iPost scoring, and collaborating with Cybersecurity, Scanning, and Systems Administration teams to address findings.
Principal Windows Systems Administrator - Polygraph Northrop Grumman CorpPrincipal Windows Systems Administrator - PolygraphVA$103,600–$155,400 / yearPreferred 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).
Classified Windows Systems Administrator Johns Hopkins University Applied Physics Laboratory LLCClassified Windows Systems AdministratorLaurel, MDOur team is responsible for the vital mission of deploying and maintaining Multi-IS Plans Windows Infrastructure and high performance computing (HPC) environments in support of classified computing for the Air and Missile Defense Sector. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
Sr Systems Administrator StratAcuity Staffing Partners IncSr Systems AdministratorReston, VA$70–$90 / hourIn 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.
Systems Administrator - NMCI Desktop Support Huntington Ingalls Industries IncSystems Administrator - NMCI Desktop SupportSpringfield, VA$95,000–$135,000 / yearYou will provide front‑line coordination and desktop support for NMCI‑managed end‑user environments, ensuring users receive reliable, accurate assistance with workstation provisioning, troubleshooting, and lifecycle actions. You will assist users with NMCI‑managed Windows workstation issues; coordinate with NMCI Service Desk and field technicians; and maintain accountability for NMCI‑assigned assets, inventory updates, and disposition actions.
NewSenior Window Systems Administrators FSP TENICA and Associates LLCSenior Window Systems Administrators FSPHerndon, VAEnsure build report (procedure) is feasible, clear, and concise Establish server baseline Implement baseline changes under tech lead oversight Maintain server rooms Monitor/support tape backup Perform operating system software updates/upgrades Perform server checklist Perform technical evaluations, analysis, and troubleshooting for all “supported” servers in response to Help Desk Tickets—which includes but not limited the following activities: Server failures, full system outage. TENICA provides knowledgeable and experienced subject matter experts to perform a variety of professional services, logistics and supply chain management, crisis prevention and response, and information technology solutions to solve dynamic security challenges.
Linux/Windows Systems Administrator - Secret Clearance PROLIM Global CorporationLinux/Windows Systems Administrator - Secret ClearanceMaryland, MDMaintain smooth operation of all computer infrastructure in a multi-user computer system environment, including coordination of efforts with systems, software, and electrical design engineers, Information Systems Security Officers, PC desktop technicians, end users, network engineers, program/project managers, and IT management. Current DoD Secret security clearance (at a minimum), to include a closed investigation date completed within the last 6 years, or must be enrolled in the DoD Continuous Evaluation (CE) Program, in order to be considered; the required security clearance must be maintained as a condition of continued employment.
NewEnterprise Windows Administration Support Services (EWASS) Senior Systems Administrator S2i2 IncEnterprise Windows Administration Support Services (EWASS) Senior Systems AdministratorFort Belvoir, VAFull timeRequired Qualifications:Minimum ten (10) years of progressive, specialized IT experience in Information Processing, including a range of hardware and software solutionsAt least four (4) years of direct, hands-on experience installing, configuring, maintaining, and troubleshooting softwareBachelor's degree in a technical discipline (e.g., Computer Science, Information Systems, Engineering)DoD Approved 8570 Baseline Certification at IAT Level II – One (1) of the Following: (ex., -Apply advanced knowledge of application networking, load balancing, and fault tolerance while spearheading vulnerability management initiatives.-Lead daily Windows Server administration across NIPR and SIPR networks - both on-premises and on-the cloud.
Classified Windows Systems Administrator Johns Hopkins Applied Physics LaboratoryClassified Windows Systems AdministratorLaurel, MarylandFull timeOur team is responsible for the vital mission of deploying and maintaining Multi-IS Plans Windows Infrastructure and high performance computing (HPC) environments in support of classified computing for the Air and Missile Defense Sector. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
Systems Administrator - Active Security Clearance CadreSystems Administrator - Active Security ClearanceReston, VAFull timeRequest 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)Perform the physical setup and configuration of desktop hardware and software as neededPerform other duties as assigned at the discretion of Project Management Required Qualifications:Ability to obtain and maintain a TS/SCI with polyBachelor's degree preferred, in Computer Science, Information Systems, Engineering, Business, or a scientific or technical discipline related to the specific skill. The Systems Administrator interacts with users to troubleshoot and resolve hardware, software and performance problems for customers using mainframe, LANs, PCs and printers.
Senior Windows Systems Administrator NIH-NCBISenior Windows Systems AdministratorBethesda, MDThe ideal candidate will possess deep technical proficiency across the Microsoft server ecosystem, including Active Directory, Entra ID, ADFS, IIS, SQL Server, Hyper-V, and MECM, while bringing strong hands-on administration experience in multi-cloud environments spanning Amazon Web Services (AWS) and Google Cloud Platform (GCP). In this role, you will maintain our primary Microsoft environment, plan unified infrastructure deployment strategies via Microsoft Configuration Manager (MECM/SCCM), and serve as an expert-level technical resource providing backup and primary support for complex Active Directory (AD DS) duties.
Windows Systems Administrator Leidos Holdings IncWindows Systems AdministratorChantilly, VA$92,300–$166,850 / yearConfigure 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.
Senior Windows Systems Administrator Black Canyon ConsultingSenior Windows Systems AdministratorBethesda, MDThe ideal candidate will possess deep technical proficiency across the Microsoft server ecosystem, including Active Directory, Entra ID, ADFS, IIS, SQL Server, Hyper-V, and MECM, while bringing strong hands-on administration experience in multi-cloud environments spanning Amazon Web Services (AWS) and Google Cloud Platform (GCP). In this role, you will maintain our primary Microsoft environment, plan unified infrastructure deployment strategies via Microsoft Configuration Manager (MECM/SCCM), and serve as an expert-level technical resource providing backup and primary support for complex Active Directory (AD DS) duties.
Windows Systems Administrator ManTechWindows Systems AdministratorChantilly, VAMust 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.