Job Overview: The position of Network Administrator II is to manage and support the organization’s network and connectivity systems. This role is responsible for maintaining reliable and secure network operations, including firewall management, VPN connectivity, and multi-site communication, within a primarily on-premises environment. As part of a small IT team, this position requires a hands-on approach to troubleshooting, ownership of network performance and availability, and the ability to work across both network and systems layers. The ideal candidate will be comfortable supporting critical infrastructure, collaborating with team members, and contributing to day-to-day IT operations as needed.
Duties:
  • Manage and maintain Fortinet stack — FortiGate firewalls, Forti
  • Switches, and FortiAPs, including firmware updates, configuration, and policy management
  • Administer and support SSL VPN for remote users and maintain multiple IPSec tunnels to remote sites, vendors, and business partners
  • Monitor VPN and WAN connectivity, ensuring high availability and rapid resolution of outages impacting business operations
  • Manage dual ISP connections, including failover configuration, performance monitoring, and coordination with service providers
  • Maintain and support network infrastructure including primarily Fortinet and occasionally Cisco switching environments
  • Administer site-to-site connectivity, including UniFi wireless bridge between facilities
  • Monitor network health and respond to alerts; perform root cause analysis on outages and degraded performance
  • Support end users with network and connectivity-related issues as needed
  • Coordinate with vendors and ISPs for troubleshooting, escalations, quotes, and hardware replacement (RMA)
  • Maintain accurate network documentation including diagrams, configurations, and operational procedures
  • Assist IT team with infrastructure projects and collaborate across systems and network environments
  • Security & Access Responsibilities
  • Manage firewall policies, NAT rules, and access controls on FortiGate devices
  • Ensure secure remote access for users and third-party vendors
  • Perform periodic firewall rule reviews and maintain network segmentation best practices
  • Support patching and firmware updates for network devices
  • End User & Operational Support
  • Participate in day-to-day IT support activities within an internal ticketing system, including documenting work performed and maintaining clear ticket notes
  • Assist with general user support issues as part of a small IT team, including escalation and troubleshooting of connectivity and system-related problems
  • Support company-issued iOS devices, including initial setup, account configuration, application deployment, and coordination with carriers for service changes such as international plans
  • Maintain accurate records of assigned devices and support basic mobile device troubleshootingWORKING ENVIRONMENTOn-site role supporting a primary business location
  • Small IT team with shared responsibilities across infrastructure and support
  • Participation in team-based response to after-hours or critical issues
  • Opportunity to take ownership of network infrastructure and contribute to improvements
  • Communicates frequently with internal and external contacts on various issues.
  • Must follow all company requirements in regards to Environmental, Health, and Safety (EHS) policies and procedures.
  • Performs other duties as assigned.
Experience Have a high school diploma or GED and six years of hands-on network administration experience in a business environment-or-Have a bachelor’s degree six years of hands-on network administration experience in a business environment Certification may be required in some areas Have two to five years of experience in a related area of responsibility Experience with Fortinet firewalls (FortiGate required; FortiSwitch/FortiAP preferred) Hands-on experience with SSL VPN and IPSec tunnel configuration and troubleshooting Solid understanding of routing, switching, VLANs, NAT, and firewall concepts Experience with enterprise wireless networking and troubleshooting Ability to troubleshoot issues across network, firewall, and system layers Familiarity with Windows environment and Active Directory

Also on the board Same function, level within a rung

Level

Senior

Location

Shelbyville, TN

Occupation

Network and Computer Systems Administrators

Industry

Computer Systems Design Services

Posted

today

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