Systems Engineer LeidosSystems EngineerTemple Hills, MD$107,900–$195,050If 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 candidate should be a proactive leader and team player with strong communication, management, analytical, and problem solving skills; proven ability to thrive in environments that constantly embraces new technology.
Lead Systems Engineer LeidosLead Systems EngineerBurke, VA$107,900–$195,050If 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. June 22, 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.
Active Directory Architect / Engineer LeidosActive Directory Architect / EngineerArlington, VA$131,300–$237,350Design, 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). Deep expertise in designing, deploying, upgrading, and administering Microsoft Active Directory Domain Services (AD DS), including domain controllers, multi-domain/forest architectures, trusts, replication topologies, Group Policy Objects (GPOs), OU design, and security baselines.
Windows Systems Administrator Bart & AssociatesWindows Systems AdministratorAlexandria, VA$140,000–$200,000 / yearIn 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.
Windows Systems Administrator - McLean, VA - TS/SCI PGTEKWindows Systems Administrator - McLean, VA - TS/SCIMcLean, VirginiaWe 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.
Windows Systems Administrator - Mclean, VA - Ts/Sci PGTEKWindows Systems Administrator - Mclean, VA - Ts/SciMcLean, VA$185,000–$265,000 / yearWe 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. Location: McLean, VA (transitioning to Chantilly, VA) Clearance Required: Active TS/SCI with CI Polygraph Salary Range: $185,000 – $265,000 Travel: Up to 20%.
NewWindows Systems Administrator Leidos Holdings IncWindows Systems AdministratorSuitland, MD$92,300–$166,850 / yearExtensive experience administering enterprise Windows environments, including Active Directory (AD), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Microsoft Exchange email services, Microsoft Azure Cloud, Remote Desktop Services, VMware, Omnissa, desktop management, and Windows Server services. 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.
NewWindows Systems Administrator Sienna Systems CorporationWindows Systems AdministratorAlexandria, VA$112,500–$117,500 / yearProvide Tier II and Tier III support for complex issues; troubleshoot, repair, and recover from hardware and software failures, keeping affected users and management informed. Run daily backup operations and manage the backup solution, verifying restores, managing media rotation and off-site handling, and performing file archival and purges.
NewWindows Systems Administrator (supporting the Naval Research Lab) ASRC Federal Holding CompanyWindows Systems Administrator (supporting the Naval Research Lab)MDThe System Administrator position will join a team performing IT administration and support of a LAN/WAN/Cloud environment which provides services on Windows, Cisco and other network and peripheral systems to support BPTF's mission and administrative network activities. ASRC Federal System Solutions LLC, a subsidiary of ASRC Federal, is seeking a Windows Systems Administrator to support our Prime program supporting the Naval Research Lab at the Blossom Point Tracking Facility in Welcome, MD.
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.
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.
VMWare Systems Administrator – Top Secret/SCI | Quantico, VA Cambridge International Systems IncVMWare Systems Administrator – Top Secret/SCI | Quantico, VAQuantico, VAFull timeRequired 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.
Windows Systems Administrator TechDigitalWindows Systems AdministratorWashington, DCGood understanding of Host-based firewall, Intrusion protection, Data Integrity, and Vulnerability Scanners Good knowledge of TCP/IP and network protocols Experience in Intimacy with UNIX, Windows, and Linux hardware and software configurations Knowledge of AWS and Azure security Knowledge of Chef Inspec / Automate, TrendMicro Deep Security, CyberArk and Tripwire Knowledge of Containers (Kubernetes, AWS Fargate, Docker) Knowledge of Splunk and ability to create searches, reports and Dashboards. Windows Systems Administrator IIIJob Description Thorough understanding of electrical power and multiple power phases as it relates to data center deployments and systems Advanced knowledge of the Microsoft Office Suite to include Excel and Access.
SYSTEMS ADMINISTRATOR -Washington, DC Georgia Tek SystemsSYSTEMS ADMINISTRATOR -Washington, DCWashington, DCPerform System Administration to included AD, GPO policies, Microsoft Exchange, Patching, application support, and activities to include account management, monitoring and management of system resources (CPU, memory, disk, etc), monitoring and auditing system logs. Perform Systems Lifecycle management including planning, implementation, maintenance, upgrades, consolidation, and decommissioning of enterprise hardware, and software.
Linux / UNIX Systems Administrator (PeopleSoft / Oracle) CymertekLinux / UNIX Systems Administrator (PeopleSoft / Oracle)Chantilly, VirginiaLinux 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.
Systems Administrator Dynamic Solutions Technology LLCSystems AdministratorWashington, DCFull timeResponsibie for account management, troubleshooting workstations and servers in both virtual and physical environments, installing hardware and software, configuring operating systems, performing patch and vulnerability management, and configuring or troubleshooting workstation peripherals. Dynamic Solutions Technology, LLC (DST), a premier strategic services firm that meets IT and Service needs for commercial and government clients, is seeking a full-time Systems Administrator to provide support to a Federal Government customer in the Washington DC location.
Senior Systems Administrator (Lead) Empower AI Inc.Senior Systems Administrator (Lead)Arlington, VirginiaFull timeThe primary duty of this position is management of the OMC MCDO IT Support Team: customarily and regularly leading and directing IT Support Technicians and systems administrators; independently exercising authority on performance management, ATO compliance, STIG implementation, Active Directory administration, and all O&M activities. Independently leads ISSO ATO tasks including DISA STIG implementation, RMF security scan responses, and ATO remediation with DISA and DIA; conducts planning, implementation, validation, and verification of all server system upgrades, patches, and STIGs to meet ATO requirements.
Windows Systems Administrator LeidosWindows Systems AdministratorArlington, VirginiaThis 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. August 6, 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.
SME Systems Administrator Revolutional, LLCSME Systems AdministratorLorton, VA$100,000–$135,000 / yearThe Systems Administrator will manage and troubleshoot enterprise networks, servers, virtual environments, and security configurations while collaborating on the design and maintenance of the Continuity of Operations (COOP) site in Scottsdale, AZ. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes.
DevSecOps Systems Administrator CACIDevSecOps Systems AdministratorReston, VirginiaThe 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 : 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.