Network Administrator

Job Summary The Network Administrator is responsible for the design, implementation, maintenance, and security of the organization’s network infrastructure. This role ensures reliable network connectivity, optimal performance, and adherence to security best practices across all sites and systems. Key Responsibilities Install, configure, and maintain network hardware and software (routers, switches, firewalls, wireless access points) Monitor network performance, availability, and capacity; troubleshoot and resolve issues promptly Ensure network security through access controls, firewall policies, VPNs, and regular patching Manage IP addressing, VLANs, DNS, DHCP, and routing protocols Support LAN, WAN, WLAN, SD-WAN and VPN connectivity across multiple locations Collaborate with IT teams on system upgrades, network improvements, and infrastructure projects Maintain network documentation, diagrams, configurations, and change records Perform routine backups and participate in disaster recovery and business continuity planning Provide tier‑2/3 support for network‑related incidents and escalations Ensure compliance with company policies and industry security standards Required Qualifications Bachelor’s degree in Information Technology, Computer Science, or equivalent experience 5+ years of experience administering enterprise networks Strong knowledge of routing, switching, and network security principles Hands‑on experience with firewalls, VPNs, and wireless technologies Familiarity with network monitoring and troubleshooting tools Experience supporting Microsoft and/or Linux‑based environments Preferred Qualifications Industry certifications (e.g., CCNA, CCNP, A+, Network+, Security+) Experience with cloud networking and computing (Azure, AWS, or similar) Knowledge of SD‑WAN, VoIP, or network automation tools Experience in Enterprise multi‑site or hybrid environments Knowledge of Windows Server operating system roles Familiarity with Virtualization technologies (VMware, Hyper‑V) In‑office Requirement at Bedford, NH headquarters May require on‑call rotation or after‑hours maintenance Occasional travel to remote sites as needed Valid driver’s license and driving record that meets company policy #J-18808-Ljbffr