System Administrators Leader Communications IncSystem AdministratorsAlexandria, VASystem Engineer • 1-5 years of experience with installation, configuration, problem isolation and resolution in various information technology fields to include but not limited to Helpdesk, Server Administration, Network Management, and Desktop Support. • Microsoft Windows • Linux • Possess excellent communication skills (e.g., excellent written and verbal communication skills acquired via customer service work).
Senior Linux/Unix IT Systems Administrator TATITLEK SUPPORT SERVICES, INC.Senior Linux/Unix IT Systems AdministratorDahlgren, VAThe specialized experience includes Linux system administration of Redhat and security setup and updates (IAVA''s); UNIX system administration of Solaris, UNIX scripting, Thin Client, Sudo, IDM, NTFS, CIFS, DNS, RDP Client, and security setup and updates (IAVA''s); Windows system administration of WSUS and third party solutions, GPOs Windows Server and Windows Workstations, Thin Clients (hardware/software), Networking and documentation creation/updates. While performing the duties of this job, the employee is required to use fabrication tools; stand; walk; sit; use hands to finger, handle, or feel objects, tools or controls; reach with hands and arms; climb stairs; balance; stoop, kneel, crouch or crawl; talk or hear; taste or smell.
Senior Windows IT Server Systems Administrator TATITLEK SUPPORT SERVICES, INC.Senior Windows IT Server Systems AdministratorDahlgren, VAThe specialized experience includes Linux system administration of Redhat and security setup and updates (IAVA''s); UNIX system administration of Solaris, UNIX scripting, Thin Client, Sudo, IDM, NTFS, CIFS, DNS, RDP Client, and security setup and updates (IAVA''s); Windows system administration of WSUS and third party solutions, GPOs Windows Server and Windows Workstations, Thin Clients (hardware/software), Networking and documentation creation/updates. While performing the duties of this job, the employee is required to use fabrication tools; stand; walk; sit; use hands to finger, handle, or feel objects, tools or controls; reach with hands and arms; climb stairs; balance; stoop, kneel, crouch or crawl; talk or hear; taste or smell.
Executive Administrator SSDP/SWAC Galapagos Federal Systems LLC.Executive Administrator SSDP/SWACReston, Virginia$120,000–$130,000 / yearFull timeWe deliver professional services in IT Design & Installation, Cybersecurity Engineering & Support, Application Integration & Development, Software & Hardware Engineering, Network & Systems Management, Information Systems Security, and Business Management Services. Galapagos Federal Systems LLC is seeking a highly motivated Executive Administrator to support the Space Security and Defense Program (SSDP) and Space Warfighting Analysis Center (SWAC) Threat Assessment Division (TAD).
NewSolarWinds Administrator LeidosSolarWinds AdministratorHampton, VirginiaDemonstrated strong abilities in implementing and configuring monitoring solutions based on SolarWinds Orion products (Network Performance Monitor, Server & Application Monitor, Netflow Traffic Analyzer, Network Configuration Manager, Database Performance Analyzer, and others) in a distributed and highly available environment. 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.
System Administrator TS/SCI Polygraph LeidosSystem Administrator TS/SCI PolygraphAlexandria, VirginiaExecuting the process for managing information assurance vulnerability alerts (IAVAs) and system security scanning for equipment suites in accordance with the System Security Plans for these systems to identify and remediate IAVAs rapidly and accurately. 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.
ACAS Administrator (TS/SCI clearance) LeidosACAS Administrator (TS/SCI clearance)Hampton, VirginiaJune 11, 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. This is a mid-to-senior level role requiring demonstrated leadership in vulnerability management operations within DoD environments and will require to perform job duties onsite at Langley Air Force Base, VA.
NewNetwork Support Technician Inserso CorporationNetwork Support TechnicianFairfax, VA$55,000–$72,000 / yearMust maintain a state of travel readiness required to take prompt action on support requests which may require local and/or overnight travel to Government locations (Local short notice travel to customer sites is common, extended overnight and air travel is typically less than 5% per year). The Network Support Technician reports to an Area Technical Lead and provides IT Field Operations (ITFO) support for 24x7 LANs and associated applications, peripherals, connectivity, and end-users in a Service Desk supported Tier II environment.
Linux Systems Administrator TS/SCI POLY ParsonsLinux Systems Administrator TS/SCI POLYCentreville, Virginia$112,200–$196,400 / yearWe promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Education: Bachelor’s degree in a technology-related discipline and a minimum of 8 years of professional experience (additional years of experience in lieu of degree will be considered).
System Administrator Active Clearance, Intelligence Systems Anduril Industries IncSystem Administrator Active Clearance, Intelligence SystemsReston, VA$112,000–$149,000 / yearThis third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process.
Junior Systems Administrator AkimaJunior Systems AdministratorAlexandria, VAstrong>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. + Deploy, manage, maintain, and support Microsoft Windows (all versions), Active Directory, local applications, servers, workstations and related technologies.
E-Discovery Application Administrator II Contact Government Services LLCE-Discovery Application Administrator IIFairfax, VA$112,597.33–$152,810.66 / yearAs an expert programmer, you will be independently developing, modifying, and maintaining complex programs to support litigation environment applications such as litigation support databases, associated management systems, and analytical systems. For the past seven years, weve been growing our government-contracting portfolio, and along the way, weve created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.
E-Discovery Application Administrator II CONTACT GOVERNMENT SERVICESE-Discovery Application Administrator IIArlington, VA$112,597.33–$152,810.66 / yearAs an expert programmer, you will be independently developing, modifying, and maintaining complex programs to support litigation environment applications, such as litigation support databases, associated management systems, and analytical systems. For the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.
Exchange/Virtual Administrator (Active Secret Clearance) AkimaExchange/Virtual Administrator (Active Secret Clearance)Alexandria, VA$115,000–$117,000 / yearFocus on managing user mailboxes, distribution groups and permissions; performing routine maintenance on Exchange and virtual machines; and ensuring mail flow continuity and system availability. For our government customers , Suvi delivers subject matter experts, an agile management approach, and innovative technologies that accomplish customers’ missions safely, securely, and efficiently.
NewUser Computing Administrator I Cna CorporationUser Computing Administrator IArlington, VASkills: Strong interpersonal skills are required for interfacing with department members, internal customers, and vendor representatives; good information organization skills; ability to write clear, concise, and accurate documentation and provide training. Demonstrated initiative and ability to work well with others; excellent customer service skills; willingness to work and stay current with new technologies and work additional hours when required; and good oral and written communications skills.
SharePoint Senior Administrator LeidosSharePoint Senior AdministratorAlexandria, VirginiaThe SharePoint Admin shall deploy, operate, and maintain SharePoint services, including load balancing, PKI authentication, and claims-based authentication as well as support site setup, permission management, troubleshooting, and service requests for customers as well as content and knowledge managers. The SharePoint System Administrator will support infrastructure services, operations, and maintenance across multiple enclaves of different classifications with remote administration for server farms located in centralized data centers.
NewSystems Administrator Dezign Concepts LLCSystems AdministratorWMA, VALocation: WMA Salary: Up to $175K Job Code: 08072026-4398-03-01 Clearance: Active Top Secret with Polygraph Make an Impact Dezign Concepts is seeking an experienced Systems Administrator to support the management and deployment of operational systems serving a wide range of mission needs. Bring Your Expertise to the Mission Join Dezign Concepts and help deliver versatile engineering solutions that power the Intelligence Community.
Microsoft System Administrator - Senior (TS/SCI Required) Praescient Analytics LLCMicrosoft System Administrator - Senior (TS/SCI Required)Ft. Belvoir, VALocation: Ft. Belvoir, VA Clearance Required: TS/SCI minimum (US Citizen) Employment Type: Full-Time About Praescient Analytics: Praescient Analytics is a leader in delivering advanced analytic, data engineering, and technology integration solutions in support of the Department of Defense (DoD), Intelligence Community, and federal law enforcement. Examples Include: CompTIA Security+ CE, CompTIA CySA+, CompTIA Cloud+, GIAC Security Essentials Certification (GSEC), GIAC Certified Incident Handler (GCIH), Cisco Certified Network Associate (CCNA), Certified Ethical Hacker (CEH).
Network Systems Technician TATITLEK SUPPORT SERVICES, INC.Network Systems TechnicianDahlgren, VAWhile performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands to finger, handle, or feel objects, tools or controls; reach with hands and arms; climb stairs; balance; stoop, kneel, crouch or crawl; talk or hear; taste or smell. Planning, design, and implementation of various IA strategies and technologies to include encryptors, perimeter and host-based firewalls, virtual private networks (VPNs), intrusion detection systems, vulnerability assessment, and data analysis tools.
Citrix Infrastructure Administrator LeidosCitrix Infrastructure AdministratorArlington, VirginiaThe DISA CESO ITSS team provides network operations and cyber defense support to the Defense Information Systems Agency (DISA), enabling secure and reliable communications for the Department of Defense (DoD) and Combatant Commands (COCOMs). June 23, 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.