Network Administrator

The Network Administrator is responsible for the administration, operation, security, monitoring, troubleshooting, and continuous improvement of the organization's enterprise network and related infrastructure. This position supports reliable and secure connectivity across on-premises, cloud, and hybrid environments and works collaboratively with IT staff, business units, vendors, and external agencies.
The position provides advanced technical support for network, server, virtualization, storage, identity, backup, wireless, firewall, VPN, and related infrastructure services. The Network Administrator participates in cybersecurity activities, incident response, disaster recovery, technology projects, documentation, change management, and infrastructure modernization.

• Administer, monitor, maintain, and troubleshoot enterprise LAN, WAN, wireless, VPN, and related network infrastructure.
• Configure and support routers, switches, firewalls, VPN technologies, wireless infrastructure, network services, and associated security controls.
• Support network segmentation, VLANs, routing, access control, secure remote access, and other controls designed to protect organizational systems and data.
• Administer core network services including DNS, DHCP, IP addressing, time synchronization, network authentication, certificates, and related services.
• Administer and support Microsoft Active Directory and Microsoft Entra , including identity, authentication, Group Policy, organizational units, permissions, synchronization, and hybrid identity environments.
• Install, configure, maintain, patch, monitor, and troubleshoot supported Windows Server and Linux systems and associated services.
• Administer and support virtualization infrastructure, including VMware vSphere/ESXi and related management, clustering, resource allocation, networking, and lifecycle activities.
• Administer and support enterprise storage technologies, including NAS/SAN environments, capacity management, performance monitoring, and storage allocation.
• Administer and monitor backup, recovery, and disaster recovery technologies, including Veeam Backup & Replication or equivalent platforms.
• Perform proactive monitoring of infrastructure availability, capacity, performance, security events, and system health; investigate and resolve alerts and failures.
• Apply operating system, firmware, application, network, and security updates in accordance with established change-management and cybersecurity practices.
• Participate in cybersecurity operations, including vulnerability remediation, endpoint/network security coordination, incident investigation, containment, recovery, and lessons learned.
• Support Microsoft 365 and cloud-connected infrastructure as assigned, including services integrated with Microsoft Entra  hybrid environments.
• Use Power Shell and other appropriate scripting or automation tools to improve administration, monitoring, reporting, and repetitive operational tasks.
• Maintain accurate network diagrams, IP addressing information, configurations, inventories, procedures, recovery documentation, and other technical records.
• Develop, test, and maintain disaster recovery and business continuity procedures for network and infrastructure services.
• Participate in infrastructure planning, technology evaluations, upgrades, migrations, implementations, and other small to medium IT projects.
• Serve as a technical point of contact for assigned systems and infrastructure and coordinate with vendors and service providers when escalation or specialized support is required.
• Provide advanced troubleshooting and technical support for network, server, infrastructure, and connectivity issues.
• Follow established IT policies, security standards, change-management procedures, and…