Top Network Administrator Jobs

Leads configuration, support, maintenance, and modernization of secure Cisco LAN and wireless infrastructure. Maintains network compliance documentation, inventories, configuration baselines, physical IDF environments, and installation standards. Handles incidents and service requests, develops project cost estimates, coordinates vendors and contractors, and supports network design, implementation, and rollout. Provides technical leadership to small project teams while troubleshooting enterprise networking environments.

Administers, monitors, troubleshoots, secures, and documents enterprise network infrastructure in a DoD environment. Configures routers, switches, firewalls, Cisco ISE, and network-management tools; resolves outages; performs upgrades, patching, backups, vulnerability remediation, and compliance activities. Maintains network documentation, supports equipment deployments, coordinates modernization efforts, and participates in incident response, on-call support, shift work, and maintenance windows.

Administer and troubleshoot enterprise LAN/WAN infrastructure, Cisco network devices, F5 load-balancing systems, firewalls, and boundary security infrastructure. Support network deployments, high-availability architectures, PKI, STIG compliance, vulnerability remediation, security investigations, cloud migration, documentation, and interoperability across DoD environments. Participate in on-call rotations and scheduled maintenance while collaborating with infrastructure, cybersecurity, cloud, and engineering teams.

Administer and troubleshoot LAN, WAN, network devices, application connectivity, and virtual server environments onsite at Patuxent River NAS. Maintain network boundary security, investigate security incidents, review and update STIG compliance, remediate vulnerabilities, and support highly available network infrastructure. The role also requires maintaining technical documentation, following customer processes, and coordinating with engineering, management, and customer stakeholders.

Oversee IT infrastructure, network operations, security, support, and technology integrations across US locations. Manage SD-WAN, ISPs, firewalls, network monitoring, hardware, software, databases, disaster recovery, vendors, and site expansions. Coordinate with global IT teams, ensure infrastructure availability and security, support cloud and modern workplace initiatives, and translate technical needs into business solutions. The role may require flexible hours and domestic or international travel.

Oversee and support IT infrastructure, networked systems, hardware, software, databases, cloud solutions, security, backups, and disaster recovery for a primary US site and other locations. Coordinate with global IT teams, vendors, and local resources; support building expansions, technology integrations, purchasing, incident management, and end-user systems. Translate technical information for varied audiences while managing competing priorities and occasional domestic or international travel.

Supports the reliability, security, and availability of site network and infrastructure systems. Designs and deploys wired and wireless networks, configures firewalls and VPNs, monitors performance, troubleshoots outages, manages hybrid AWS and Azure environments, applies patches and backups, and maintains technical documentation. The role also collaborates with centralized network and helpdesk teams, provides technical support, and may require after-hours and weekend response.

Leads the design, implementation, maintenance, and modernization of complex classified networks. Develops network architecture roadmaps, oversees migrations and cyber resilience initiatives, enforces enterprise standards, supports advanced troubleshooting, and provides third-level technical support. Serves as a technical liaison to government customers and leadership, coordinates vendors, monitors performance, resolves escalated issues, mentors team members, and contributes to proposals and technical forums. The role is full-time, on-site, and may require after-hours and weekend work.

Provides day-to-day network administration, monitoring, troubleshooting, and technical support for customers and internal staff. Maintains operating systems, network configurations, applications, hardware, and system availability tools. Performs Layer 1–3 troubleshooting, loop testing, circuit activations, installations, upgrades, and managed-services onboarding. Documents solutions, escalates complex issues, and supports Windows, Linux, SQL Server, IIS, Active Directory, DNS, and web technologies in high-availability network and data-center environments.

Maintains and supports classified voice and data network infrastructure, including routers, switches, firewalls, authentication servers, encryptors, and network management platforms. Performs installations, reconfigurations, troubleshooting, monitoring, documentation, network analysis, and vendor coordination. Requires an active Secret clearance, U.S. citizenship, Cisco networking experience, and availability for occasional after-hours support in an onsite Tucson facility.

Provides onsite and remote IT support for workstations, operating systems, printers, business applications, servers, virtualization environments, and networks. Troubleshoots Windows and Mac systems, Microsoft 365, Azure, firewalls, VLANs, VPNs, switches, and access points. Acts as an escalation point for technicians, supports client environments, participates in after-hours on-call coverage, and maintains service-quality KPIs.

Senior Network Administrator responsible for managing enterprise network infrastructure, next-generation firewalls, web application firewalls, load balancers, API gateways, cloud and software-defined networks. The role includes troubleshooting connectivity, supporting cabling and facility changes, planning bandwidth upgrades, disaster recovery, micro-segmentation, log analysis, service escalation, and technical leadership. Requires an active Secret clearance, extensive network administration experience, advanced firewall expertise, infrastructure design knowledge, and leadership of technical network initiatives.

Deploys, configures, maintains, monitors, and troubleshoots enterprise network infrastructure, including WAN/LAN environments, routers, switches, firewalls, and server systems. Supports network upgrades, infrastructure implementation projects, preventive maintenance, and system optimization. Resolves issues involving routing, switching, VLANs, TCP/IP, DNS, DHCP, VPNs, and firewall technologies while collaborating with internal teams and external partners.

Maintain and optimize enterprise network infrastructure across multiple locations. Configure and manage Cisco routers, switches, firewalls, wireless, LAN/WAN, and SD-WAN environments. Monitor performance, troubleshoot connectivity issues, administer network security, apply updates, support disaster recovery and telephony systems, and ensure compliance with internal and external standards. Collaborate with senior administrators and IT teams while maintaining documentation and supporting evolving business needs.

Administers and improves company network infrastructure by designing solutions, configuring routers, switches, firewalls, VPNs, and wireless systems. Monitors performance, troubleshoots outages, manages upgrades and backups, documents network architecture, automates routine tasks, and supports capacity planning. Provides advanced escalation support, technical leadership, and guidance on network strategy while coordinating equipment procurement, installers, facilities schematics, and occasional after-hours work and travel.

Maintains and troubleshoots Cisco-based network infrastructure across club facilities, including wired and wireless networks, VLANs, firewalls, VPNs, and related services. Supports helpdesk requests, documents network assets and procedures, coordinates with vendors and stakeholders, and provides technology support for matchdays, concerts, and other major events. Requires strong communication, troubleshooting, security judgment, and flexibility to work nights, weekends, and holidays.

Administers and optimizes network, operating system, storage, backup, and telephony infrastructure. Responsibilities include network design, capacity planning, infrastructure configuration, Windows Server and ESXi administration, SAN and backup management, Active Directory policy administration, phone system support, advanced helpdesk escalation, troubleshooting, audits, technology evaluation, documentation, and cross-functional infrastructure project participation.

Administer and secure on-premises and cloud servers, networks, hybrid identity, Microsoft 365, backups, telecom, endpoints, and mobile devices. Support security operations, incident response, SOC 2 evidence collection, documentation, and disaster recovery. Own infrastructure projects from planning through deployment, troubleshoot escalated issues, and participate in after-hours callbacks for critical 24/7 emergency communications systems.

Maintain and support Cisco-based network infrastructure across domestic, international, and data center environments. Monitor performance, troubleshoot issues, implement security measures, support network integrations and upgrades, maintain documentation, coordinate vendors, meet SLAs, and guide junior administrators. The role requires federal network administration experience, cybersecurity certification, and active Secret or Top Secret/SCI eligibility.

Provides onsite administration, monitoring, troubleshooting, and support for wired and wireless networks, telecommunications, VoIP, cloud communications, switches, firewalls, and related infrastructure. Handles user incidents, equipment installation and upgrades, documentation, inventory, knowledge-base content, network projects, and technology deployments while following cybersecurity, change management, backup, and disaster recovery procedures.

Administer and troubleshoot enterprise LAN/WAN infrastructure, Cisco network devices, F5 BIG-IP load balancing, firewalls, and boundary security systems supporting NAVAIR. Investigate network security incidents, support PKI and cloud modernization, apply DISA STIGs, remediate vulnerabilities, maintain documentation, and collaborate with infrastructure and cybersecurity teams. The role requires onsite work in Patuxent River, participation in on-call rotations, and a DoD Top Secret clearance or eligibility for upgrade.

Supports enterprise LAN/WAN infrastructure across multiple sites by configuring, deploying, maintaining, and troubleshooting switches, routing, wireless, and connectivity services. Resolves escalated network tickets, responds to outages, maintains documentation and network maps, supports infrastructure projects, manages inventory, participates in compliance and change processes, and provides on-call and after-hours support. Periodic travel to remote locations is required.

Administer and configure networks supporting tactical gun weapon systems in afloat and laboratory environments. Plan and test network devices, maintain multiple operating environments, troubleshoot hardware, software, and network issues, install releases and patches, and improve development and test environments. Conduct security assessments using Department of Defense tools, address vulnerabilities and DISA STIG findings, and collaborate with cybersecurity engineers, system administrators, engineers, and developers.

Serves as the primary Azure Administrator supporting an Army training directorate. Manages Azure identity, governance, storage, compute, virtual networks, and Microsoft 365. Supports hardware, operating systems, applications, security, upgrades, backups, and archiving. Diagnoses system deficiencies, prepares reports and acquisition documentation, and supports configuration management and accreditation under DoD and Army directives. Requires extensive systems administration experience, an active DoD Secret clearance, cybersecurity certification, Azure expertise, and RMF knowledge.

Administer NIPR/SIPR LAN infrastructure, Cisco networking equipment, encryption devices, wireless and unified communications systems. Manage IP addressing, DHCP, access control, upgrades, monitoring, cabling, troubleshooting, configuration management, cybersecurity compliance, COMSEC duties, and technical documentation. Support AFRC change-management processes, STIG application, network diagrams, maintenance tracking, and local cyber and communications problem resolution.