Top Network Administrator Jobs

Manages physician practices by implementing business plans, overseeing staff and operations, ensuring billing, coding, HIPAA, regulatory, and policy compliance, monitoring revenue and expenses, controlling costs, supporting providers, and maintaining quality care. Serves as liaison among providers, practice staff, billing, accounting, and administration. Requires travel between practice locations and leadership of personnel development, staffing, audits, and operational improvement.

Design, implement, monitor, and maintain LAN/WAN and datacenter network infrastructure. Administer switches, routers, firewalls, storage, and backups; provide 3rd-level support and troubleshooting; participate in network projects, architecture, vendor engagement, and on-call rotation to ensure high availability and disaster recovery readiness.

Manage and configure LAN networks, including Cisco routers and switches, firewalls, and load balancers. Upgrade systems as needed.

The role involves managing LAN networks, configuring Cisco routers, switches, firewalls, and load balancers, ensuring effective network administration.

Manages Windows and Linux infrastructure supporting web applications, databases, research, instruction, and administration. Responsibilities include administering Apache, IIS, MS SQL Server, and MySQL; upgrading systems; optimizing applications; troubleshooting user issues; supporting helpdesk requests; and partnering with research faculty on computing, storage, database, web, and network needs. Serves as the lead technical expert for web and database infrastructure and provides occasional extended-hours support during emergencies.

Administers, maintains, monitors, and secures enterprise network infrastructure across multiple platforms. Configures Cisco networking technologies, firewalls, VPNs, wireless systems, and monitoring tools; troubleshoots complex network issues; implements security controls; and supports availability, performance, and compliance. Collaborates with network engineering, IT operations, and security teams while documenting environments, developing procedures, and potentially training junior staff and end users.

Lead design, implementation, and management of enterprise network systems. Build and maintain LAN/WAN environments and server operations, provision and troubleshoot WAN circuits, configure Cisco/Juniper devices, and manage routing, switching, firewalls, VPNs, DNS, DHCP, and VLANs. Plan and execute infrastructure projects, document architecture and implementation, coordinate stakeholders and vendors, and provide post-project support and optimization.

Support and maintain enterprise LAN/WAN infrastructure: deploy, configure, and troubleshoot Cisco/Juniper devices, routers, switches, and firewalls; monitor network performance; perform preventive maintenance; troubleshoot routing, VLANs, TCP/IP, DNS, DHCP, VPN; support server infrastructure and network upgrade projects while collaborating with internal teams and external partners.

Provide on-site network administration for classified LAN/WAN environments: troubleshoot incidents, follow network design and security controls, monitor performance, maintain network documentation, and support system administrators and cybersecurity teams. Occasional domestic travel may be required.

Provides administration and troubleshooting for hybrid on-premises and cloud messaging environments. Manages Active Directory accounts, distribution lists, shared mailboxes, licenses, Exchange mail flow, migrations, compliance, reporting, and Outlook, Teams, and OneDrive issues. Uses Exchange tools and PowerShell, collaborates with Tier II and III teams, supports Microsoft troubleshooting, and works rotating day, swing, and midnight shifts in a 24/7/365 mission environment.

Administer, secure, and maintain enterprise network infrastructure for global LVC environments. Lead network architecture, oversee LAN/WAN, boundary systems, and secure enclaves; implement RMF/STIG controls; troubleshoot complex network issues; drive optimization and modernization; mentor senior staff; advise leadership on network strategy. Must obtain/maintain DoD security clearance.

Administer, secure, and maintain enterprise network infrastructure for DoD LVC environments. Monitor performance, implement configurations and patches, ensure STIG compliance, assist incident response, troubleshoot connectivity, and collaborate on network improvements while maintaining required security clearance eligibility.

Administer, secure, and maintain enterprise network infrastructure for DoD Live Virtual Constructive environments. Monitor and configure network devices, troubleshoot connectivity and performance issues, maintain documentation, implement network changes, and support compliance with DoD cybersecurity policies and standards. Requires eligibility for U.S. security clearance.

Lead and administer enterprise networks for global Live Virtual Constructive (LVC) environments, ensuring availability, performance, RMF/STIG compliance, security controls, troubleshooting, optimization, and mentoring staff. Must obtain/maintain DoD clearances.

The role involves configuration and administration of mainframe network software, providing technical support, monitoring performance, and ensuring compliance with policies.

The role requires managing and configuring F5 and Cisco networking equipment, ensuring integration with various systems, and supporting remote access and network services.

Administer, monitor, troubleshoot, and maintain network infrastructure and devices supporting Microsoft infrastructure and mission-critical systems. Install, deploy, upgrade, and support systems, manage user access, collaborate with IT support, and provide operational guidance to ensure secure, reliable network operations for a federal client.

Monitor and maintain network devices and Microsoft infrastructure; troubleshoot connectivity and network anomalies under direction of lead administrator; install, configure, and maintain network hardware/software; assist with user support and system performance monitoring to ensure a secure, stable network environment in hybrid and on-site settings.

The Windows Network Administrator will handle system and network installation and maintenance, focusing on Windows and MAC environments and basic troubleshooting.

Provide Tier 1 enterprise IT help desk and LAN/WAN support for AFCENT. Troubleshoot and resolve issues on network infrastructure, routers, switches, servers, firewalls, proxies and caching arrays; monitor performance; escalate complex incidents to Tier 2/3; perform LRA duties; support voice/video and provide 24/7/365 coverage and TDY CONUS support as required.

The Senior Network Administrator will oversee network performance, security, and design, mentor junior staff, and ensure the integration of technologies. Responsibilities include configuring devices and managing upgrades while collaborating across IT teams.

The Systems/Network Administrator provides IT systems support, troubleshooting, and maintenance. Responsibilities include managing daily operations, user assistance, problem resolution, and optimizing systems. Requires experience in configuring systems and network components, and supporting IT environments.

Assist in managing network infrastructure while providing desktop support in a Windows environment, implementing security policies, and monitoring logs for threats.

Maintain and troubleshoot corporate networks: configure switches/routers/firewalls/access points, support LAN/WAN and VoIP, handle tickets, coordinate vendors, participate in projects, and be on-call.

Maintain and support wired/wireless networks, routers, switches, firewalls, and servers across multiple manufacturing sites. Troubleshoot connectivity, manage VPNs and firewall rules, administer DNS/DHCP, document topology, perform cabling and physical installs, develop SOPs, and support escalated help-desk issues. Travel regionally 25–50% and perform physically demanding tasks in industrial environments.