Systems Administration Supervisor / Helpdesk Lead PeratonSystems Administration Supervisor / Helpdesk LeadChantilly, Virginia$112,000–$179,000 / yearFull timeResponsibilities: Peraton is seeking a Systems Administration Supervisor to oversee the availability, security, and performance of mission-critical systems, while managing daily operations, staff development, and cross-team coordination. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
System Administration L1 - TS/SCI Poly required EmtakSystem Administration L1 - TS/SCI Poly requiredAnnapolis Junction, MarylandInstall, configure, upgrade, and maintain servers, workstations, and laptops running CentOS, Rocky Linux, and Red Hat Enterprise Linux (RHEL). We offer competitive compensation, outstanding benefits, career growth opportunities, and the chance to work alongside experienced professionals solving real-world national security challenges.
System Administration (All Levels) - TS/SCI Poly required EmtakSystem Administration (All Levels) - TS/SCI Poly requiredAnnapolis Junction, MarylandWe are seeking System Administrators at all experience levels to support mission operations sustainment activities, including system monitoring, troubleshooting, maintenance, and operational support within large-scale Linux environments. This position is heavily focused on Linux system administration in mission-critical environments supporting high-performance computing (HPC) infrastructure and operational platforms.
System Administration L2 - TS/SCI Poly required EmtakSystem Administration L2 - TS/SCI Poly requiredAnnapolis Junction, MarylandThis role requires coordination with ISP and Gateway GES watch staff, customers, and technical support teams to ensure timely event notification, operational response, and infrastructure support. The selected candidate will provide infrastructure monitoring, telecommunications support, network maintenance, and operational coordination for supported systems and mission activities.
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.
Precise Time Network Administrator Computational Physics, Inc.Precise Time Network AdministratorWashington, DC$120,000–$170,000 / yearFull timeQualifications5+ years of experience with ASA firewalls, Firepower devices, and Firepower Threat Defense experience in enterprise network managementMust hold a CCNP certificationA Security+ Certification is desired but not requiredAn active Top Secret clearance required at start. Computational Physics, Inc. (CPI) is looking for a Full-Time Precise Time Network Administrator to support our customers at USNO, Washington DC.BackgroundThe required personnel shall be responsible for the comprehensive administration, maintenance, and modernization of network devices controlled by the PT department.
NewSenior System/Network Administrator – Systems Integration LeidosSenior System/Network Administrator – Systems IntegrationLaurel, MarylandYou will administer Linux, UNIX, and Windows environments; build and maintain virtual and storage environments; configure network components; resolve complex technical problems; and support reliable day-to-day infrastructure operations. August 24, 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.
Network System Administrator AmentumNetwork System AdministratorWashingtonNetworking: Expert knowledge of network protocols (TCP/IP, DNS, VLANs, VPNs), LAN/WAN management, routing, switching, and hands-on experience with hardware firewalls and VPNs. The ideal candidate will possess a strong primary background in network administration and engineering, coupled with robust systems administration experience across Windows, Linux, and Proxmox virtualization platforms.
Network Administrator IV Invictus International Consulting, LLCNetwork Administrator IVAlexandria, VAFull timeJob Posted by ApplicantPro .
Technical Engagement Network (TEN) Lab Manager Node.DigitalTechnical Engagement Network (TEN) Lab ManagerArlington, VANode is seeking a Technical Engagement Network (TEN) Lab Manager with experience in customer service and IT support operations to be a member of the IT support services desk in the customer environment supporting analysts and business continuity of the customer mission. - Support the implementation of new technologies and equipment in the lab environment, - Provide support as needed to lab staff in the tasks of provisioning and issuing equipment to end users, as well as maintaining inventory database.
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 Administrator 2 - I InterImageNetwork Administrator 2 - IFort Meade, MDDebug and test networks, analyze technical projects, perform needs assessments, analyze and/or oversee cost and benefit estimates, presentations, negotiations, installations, problem resolutions, procurements, and multi-vendor product integration. Ability to maintain software development infrastructure supporting multiple environments and networks in a fast-paced and highly technical environment.
Network Administrator 2 - II InterImageNetwork Administrator 2 - IIFort Meade, MDDebug and test networks, analyze technical projects, perform needs assessments, analyze and/or oversee cost and benefit estimates, presentations, negotiations, installations, problem resolutions, procurements, and multi-vendor product integration. Ability to maintain software development infrastructure supporting multiple environments and networks in a fast-paced and highly technical environment.
Network & Systems Administrator / Tier III Cherry BekaertNetwork & Systems Administrator / Tier IIIDistrict of Columbia$45–$50 / hourThe ideal candidate will have strong experience in Microsoft 365 administration, hybrid Active Directory environments, and PowerShell scripting , with the ability to manage and automate large-scale system changes. This role bridges advanced end-user support and systems administration , requiring a hands-on professional who can operate across both infrastructure and user-facing responsibilities.
NewLAN VoIP Network Specialist II Senior SierTeK Ltd.LAN VoIP Network Specialist II SeniorJoint Base Andrews, MDFull timePrepare and maintain project planning documentation, create and maintain LAN/voice network maps/diagrams and presentation material and input all relevant information into network monitoring tools (e.g., Cisco Prime Infrastructure, Solar Winds).Conducting research and load any applicable software, hardware, or firmware updates to voice equipment and physically and virtually install new equipment. Integrate all relevant voice services including but not limited to conference call hosting capabilities, voicemail, Call Center Capabilities, Emergency 911 services, Dynamic Host Configuration Protocol (DHCP), T-Metrics, voicemail, and DSN access with the CUCM.Ensure all voice equipment complies with all AF Enterprise CM Policies and listed on all relevant inventories.
Network Administrator - Active TS/SCI with CI Poly ENS Solutions, LLCNetwork Administrator - Active TS/SCI with CI PolyWashington, DCENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. To ensure a fair and equitable candidate evaluation based on individual skills, knowledge, and experience, candidates are not permitted to use artificial intelligence or other assistive tools during interviews, whether in person or virtual, unless explicit permission has been granted in advance.
Systems/Network Administrator Visionist, Inc.Systems/Network AdministratorFort Meade, MD$110,000–$170,000 / yearWe embed small engineering teams with analysts to rapidly identify and solve mission capability gaps playing a critical role in defending our nation's cyber infrastructure & providing expertise in malware analysis, attribution, mapping adversarial infrastructure, pen testing, and operational planning. You will join a team of 20+ who work together to provide full-lifecycle support to a software application that provides multi-media ingest, storage, query, playback, analysis, and transcription capabilities.
Sr. Network Engineer (TS/SCI w/ CI Poly required) A&M Technologies, Inc.Sr. Network Engineer (TS/SCI w/ CI Poly required)Sterling, VAIn addition, you will engineer solutions for expanding capacity, improving response time, and streamlining network operations throughout the internal and operational systems, will monitor and analyze mission critical networks and servers, and will set up, manage, and maintain security management and application performance optimization functions across internal and customer systems. Your expertise will support a technical program driving the Model Based Systems Engineering (MBSE) cloud platform that supports collection, management and analysis of digital engineering information in an architecture that provides seamless digital thread and enables tool interoperability, including data structures suitable for AI applications.
Cisco Network Engineer Institute for Defense AnalysesCisco Network EngineerBowie, MD$100,556–$160,890 / yearMinimum Requirements/Qualifications: Bachelor of Science degree in Computer Science or related field coupled with six years minimum experience in Information Technology, which includes at least three years in network administration OR high school diploma with eight years minimum experience in Information Technology, which includes at least four years in network administration. Experience with switch image/code updates, backup/restore of configurations, VLAN configuration to include 802.1Q, configuring and troubleshooting Access Control Lists strongly preferred.
NewNetwork Engineering, Advisor Sandy Mac EvolutionNetwork Engineering, AdvisorLandover, MarylandThis senior technical role provides Tier 2 support, develops network automation, maintains security compliance, and serves as a subject-matter resource for enterprise network administration and monitoring. Configure and maintain enterprise network monitoring for virtual machines, routers/switches, and data-center hardware using scripting and SNMP/IPMI protocols.