Network Administrator

Job Description - Network Administrator (18113)

About Us:

AAR Corp. (NYSE: AIR) is a global aerospace and defense aftermarket solutions company that employs more than 6,000 people across over 60 sites in over 20 countries. Headquartered in the Chicago, Illinois area, AAR supports commercial and government customers in more than 100 countries through four operating segments:
Parts Supply, Integrated Solutions, Repair and Engineering, and Expeditionary Services. AAR’s purpose is to empower people to build innovative aerospace solutions today so you can safely reach your destination tomorrow. The company’s mission is to go above and beyond to provide value‑driven aerospace aftermarket solutions to meet the evolving needs of our customers worldwide. AAR constantly searches for the right thing to do for its customers, employees, partners, and for society.

Network Administrator - 18113

Description

The Network Administrator will collaborate as part of a team to design, deploy, manage, and support an extensive network infrastructure across 75+ locations using Cisco and Forti Gate technologies. Responsibilities include installing hardware and software, overseeing application infrastructure deployment, and maintaining both cloud‑based and on‑premises systems. This hands‑on role requires ensuring reliable, secure, and efficient switching, routing, firewall, and wireless networking across all environments.

• Administration of Forti Gate SD‑Wan and Cisco LAN
• Full support, configuration, maintenance, and upgrades of network environments at multiple premises and in the cloud
• Installation and integration of switches, routers, firewalls, and applications
• Analysis and implementation of necessary system updates
• Assurance of network security and optimal connectivity
• Continuous monitoring of network performance
• Creation and management of administrator accounts, permissions, and required access controls
• Resolution of issues reported by end users and remote administrators
• Development of network‑related policies and procedures
• Specification of WAN/LAN requirements and solution design
• Research and recommendations for network administration improvements
• Cross‑Train technical team members
• Documentation and diagramming of network infrastructure

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. An Administrator should have knowledge of computers, routers, firewall, and switches, among others, for performing maintenance of the network and upgrading the system, including patches, service packs, security configurations, hot fixes and disaster recovery. They must be capable of acquiring more knowledge by continuing education or through other avenues.

The requirements listed below are representative of the knowledge, skill, and/or ability required.

• Proven experience in a Network Administrator role
• Hands‑on experience with Forti Gate SD‑WAN solution
• Excellent knowledge of best practices around management, control, and monitoring of Cisco/Fortigate infrastructure
• Deep understanding of TCP/IP and LAN/WAN technologies, expertise with general routing/switching, routing protocols like EIGRP, BGP, and MPLS, branch and Datacenter Architectures
• Experience with hybrid network design/administration, on‑prem and cloud environments like Azure and AWS
• Working knowledge of Cisco ISE environments
• Configuration and monitoring of Cisco WIFI networks
• Ability to set up and configure hardware connections to different WAN technologies
• Experience in configuration of Forti Gate SD‑Wan routers and Cisco switches to support a multi‑VLAN environment
• Great at organizing, prioritizing, and multitasking
• Strong troubleshooting skills
• Bachelor’s degree in related field or 5+ years work experience in CISCO and other related network technologies
• Travel to other AAR locations when needed.

• Holding credentials that demonstrate ability to perform a specific level of tasks related to implementing and maintaining network infrastructure.
• Able to review and make decisions regarding the software, hardware, and…