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Highly Marelli USA, Inc. · Shelbyville, Tennessee
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, FortiSwitches, 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 troubleshooting
WORKING ENVIRONMENT
On-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
Must be legally authorized to work in the US without current or future sponsorship
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
Details
| Company | Highly Marelli USA, Inc. |
| Location | Shelbyville, Tennessee |
| Type | FULL TIME |
| Niche | Computer and Mathematical Occupations |