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.
Cloud Architect / Engineer LeidosCloud Architect / EngineerWashington, DC$131,300–$237,350Proven expertise with Generative AI infrastructure, including: Production-ready Retrieval-Augmented Generation (RAG) pipelines, Scalable vector databases (e.g., Pinecone, Weaviate, Milvus, FAISS, or managed services) with indexing, clustering, and optimized retrieval, GPU/TPU compute clusters, managed container orchestration (Kubernetes/EKS/AKS/GKE), and auto-scaling for large language model (LLM) workloads. Demonstrated experience implementing enterprise security and compliance frameworks (SOC 2, ISO 27001, HIPAA, PCI-DSS, CMMC, FedRAMP, etc.), including encryption, threat monitoring, and zero-trust architectures.
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.
Network Engineer / Systems Administrator (SA) CymertekNetwork Engineer / Systems Administrator (SA)Annapolis Junction, MarylandNetwork 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.
Network Administrator - Mid ValidaTekNetwork Administrator - MidFort Belvoir, VirginiaPrimary focus will be on, handling internal projects for operations, supporting driving time-sensitive initiatives, supports ITIL service area activities (problem management, incident management, service request fulfillment, etc.) and specific tasks to a successful conclusion, operations management, configuration/change management, service level agreements (SLA). The I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations.
IT Network Administrator Expert In Recruitment SolutionsIT Network AdministratorWashington, DCYou will be responsible for the proactive monitoring, troubleshooting, and resolution of issues impacting a large-scale LAN/WAN architecture across over 100 county wide sites, including core IP networking, virtualization platforms, hybrid cloud environments (AWS, Azure, GCP), and SaaS integrations. o Configure and support LAN/WAN connectivity for user devices (PCs, VOIP phones, printers, IoT, card readers, body-worn cameras) Troubleshoot and maintain DHCP reservations, DNS configurations, firewall rules, ACLs, and VLAN assignments.
System / Network Administrator Level 2 WOOD Federal SolutionsSystem / Network Administrator Level 2Laurel, Maryland$150,000–$165,000 / yearMicrosoft Certified Solutions Associate-Server (MSCA-Serv) Server 2008 or; Microsoft Certified Solutions Associate-Server (MSCA-Serv) Server 2012 or; Microsoft Certified Solutions Expert-Server (MSCE-Serv) Server Infrastructure or; Microsoft Certified Solutions Expert-Server (MSCE-Serv) Desktop Infrastructure or; Microsoft Certified Solutions Expert-Server (MSCE-Serv) Messaging or; Microsoft Certified Solutions Expert-Server (MSCE-Serv) Communication or; Microsoft Certified Solutions Expert-Server (MSCE-Serv) SharePoint or; Microsoft Certified IT Professional - Windows Server (MCITP – Serv) Administrator on Windows Server 8. Microsoft Certified IT Professional - Windows Server (MCITP – Serv) Virtualization Administrator on Windows Server 8 or; Microsoft Certified IT Professional - MS Exchange Server (MCITP-EXG) Enterprise Messaging Admin on Exchange 2010 or; Computer Technology Industry Association - Linux + (Linux +) or; Linux Professional Institute -Level 1(LPI-1) or: Red Hat Certified Systems Administrator (RHCSA) or; Sun Certified Systems Administrator (SCSA) or; VMWare Certified Professional (Vsphere 5) (VCP5) or; Computer Technology Industry Association - Storage + (Storage +); or * *Computer Technology Industry Association - Network+, Or equivalent approved by COR-T.
Network Administrator CymertekNetwork AdministratorChantilly, VirginiaNetwork Engineer, System Administrator, IT Administrator, Network Technician, Network Support Specialist, Infrastructure Administrator, Cloud Network Administrator, Network Operations Specialist, Network Analyst, Network Security Administrator, etc. Computer Science, Information Technology, Network Engineering, Cybersecurity, Systems Administration, Electrical Engineering, Information Systems, Telecommunications, Data Communications, Software Engineering, etc.
Junior Network Administrator (Remote) Terrestris Global SolutionsJunior Network Administrator (Remote)Washington, DCRemoteThis project will provide IT service desk, systems, network, and security operations support for Federal Prison Industries (UNICOR), supporting end users, Microsoft infrastructure, and mission-critical business systems in hybrid work environments. The Junior Network Administrator ensures that all computers and other devices connected to networks, including routers, hubs and switches, are operating correctly.
Junior Network Administrator Terrestris Global SolutionsJunior Network AdministratorWashington, DCRemoteThis project will provide IT service desk, systems, network, and security operations support for Federal Prison Industries (UNICOR), supporting end users, Microsoft infrastructure, and mission-critical business systems in hybrid work environments. The Junior Network Administrator ensures that all computers and other devices connected to networks, including routers, hubs and switches, are operating correctly.
Systems Network Administrator I/Service Desk Support LeidosSystems Network Administrator I/Service Desk SupportLaurel, MarylandOur team is at the cutting edge of Security Engineering, Computer Network Operations (CNO), Mission Software, SIGINT, and advanced analytics —delivering solutions that directly support critical national security missions. You’ll also provide hands-on support to users both at headquarters and across the enterprise—delivering excellent customer service while managing multiple priorities.
Journeyman Network Administrator Strategic Operational SolutionsJourneyman Network AdministratorArlington, VAFull timeMust possess an active DoD 8570/8140 IAT Level II certification at start date, such as:CompTIA Security+Cisco CCNAMicrosoft Windows Server CertificationOther DoD-approved IAT Level II certificationExperience designing, deploying, configuring, and troubleshooting enterprise network environments. The position requires onsite support in Arlington, VA.Description of DutiesPerform troubleshooting for classified and unclassified network connectivity, including VLANs, routing, switch ports, device reachability, IPv4/IPv6 connectivity, and overall network performance.
Systems Network Administrator I/Service Desk Support Leidos Holdings Inc.Systems Network Administrator I/Service Desk SupportLaurel, MD$59,150–$106,925 / yearOur team is at the cutting edge of Security Engineering, Computer Network Operations (CNO), Mission Software, SIGINT, and advanced analytics-delivering solutions that directly support critical national security missions. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Junior Network Administrator Dynamic Solutions Technology LLCJunior Network AdministratorWashington, DCFull timeDynamic 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 Junior Network Administrator to provide support to a Federal Government customer in the Washington DC, location. Be able to exercise a high degree of discretion when evaluating client's operating systems, hardware configuration, firewalls, security, and network infrastructure.
Network System Administrator CymertekNetwork System AdministratorReston, VirginiaNetwork Engineer, Systems Administrator, IT Administrator, Network Security Administrator, Infrastructure Administrator, Network Operations Specialist, Cloud Systems Administrator, Network Analyst, Systems Engineer, IT Support Specialist, etc. Computer Science, Information Technology, Network Engineering, Cybersecurity, Systems Administration, Information Systems, Electrical Engineering, Telecommunications, Data Communications, Software Engineering, etc.
Network Administrator, Sr SMS DATA PRODUCTS GROUP, INCNetwork Administrator, SrWest Mclean, VAWith the goal of building long-term partnerships with our customers, we invest in our employees by providing the training, tools, and support they need to keep critical missions operational, improve performance, and reduce risk. This position will provide Tier 2 Network Administration support augmenting Air National Guard Communications Squadron personnel in operating legacy NIPR and SIPR Base Area Network infrastructure.
Network Administrator MaximusNetwork AdministratorAnnapolis Junction, MDFull timeMaximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. - Troubleshoot and resolve network issues using firewall logs, switch packet capture tools; engaging with cross-functional teams to leverage support and collaboration when necessary.
Network Administrator (Ts/Sci Clearance Required) NorthHill TechnologyNetwork Administrator (Ts/Sci Clearance Required)Springfield, VirginiaProvide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Isolate and resolve hardware and software problems involving the applications, the operating system, the hardware, the communications infrastructure, or any combination therefore.
Watch Stander / Junior Network Administrator (Secret Clearance Required) Shift Work On-Site AkimaWatch Stander / Junior Network Administrator (Secret Clearance Required) Shift Work On-SiteAlexandria, VA$65,000–$75,000 / yearConduct Tier I/Tier II technical diagnostics of networks, including server resets (Citrix), SNMPc, pinging servers, user accounts, TAVEE reports, etc. For our government customers, Tuvli ensures that solutions are strictly aligned with agency processes and desired program outcomes while delivering the best value for technology investments.
Network Administrator (Remote) Terrestris Global SolutionsNetwork Administrator (Remote)Washington, DCRemoteThis project will provide IT service desk, systems, network, and security operations support for Federal Prison Industries (UNICOR), supporting end users, Microsoft infrastructure, and mission-critical business systems in hybrid work environments. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.