Network Administrator
Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Nov 9, 2026. AAR Corp scores A on the Alion truth index.
The Network Administrator will collaborate as part of a team to design, deploy, manage, and support an extensive network infrastructure across 75+ locations utilizing Cisco and FortiGate 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.
This position is based at our Corporate Headquarters in Wood Dale, IL, with a planned relocation to the Merchandise Mart (Chicago) in early 2027.
What you will be responsible for:
- Administration of FortiGate 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
- Hands-on experience managing cloud hosted voice environments
- 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
The Network Administrator will collaborate as part of a team to design, deploy, manage, and support an extensive network infrastructure across 75+ locations utilizing Cisco and FortiGate 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.
This position is based at our Corporate Headquarters in Wood Dale, IL, with a planned relocation to the Merchandise Mart (Chicago) in early 2027.
What you will be responsible for:
- Administration of FortiGate 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
- Hands-on experience managing cloud hosted voice environments
- 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.
What you need to be successful in this role:
- Proven experience in a Network Administrator role
- Hands-on experience with FortiGate SD-WAN solution
- Previous experience administrating SD-WAN networks
- 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 designadministration, 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 FortiGate 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.
Additional Positives for the Position:
- Holding credentials that demonstrates 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 networks required to meet the organization's needs.
- Training of users in the proper use of company computer technology.
- Troubleshoot network operation errors
Experience working in Windows and VMware environments
The rewards of your career at AAR go far beyond just your salary:
- Competitive salary and bonus package
- Comprehensive benefits package including medical, dental, and vision coverage.
- 401(k) retirement plan with company match
- Generous paid time off program
- Professional development and career advancement opportunities
Physical Demands/Work Environment:
The physical demands and work environment characteristics described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
- Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
- While performing the duties of this job, the employee may be regularly required to sit, stand, bend, reach and move about the facility.
- The environmental characteristic for this position is an office setting.
- Candidates should be able to adapt to a traditional business environment.
AAR provides accommodation in accordance with applicable laws through all stages of the hiring process. If you require accommodation for any part of the application and/or hiring process, please advise Human Resources.
Compensation:
The anticipated salary range for this position is$100,000 to $120,000 annually. This range reflects the base salary for candidates who meet the requirements of the role, including experience, education, and location. [In addition to base pay, this role is eligible for a 10% bonus.] AAR offers a competitive benefits package, including medical/dental/vision/life/and AD&D insurance, 401(k) savings plan with employer match, paid time off and holiday pay, as well as opportunities for professional development and growth.
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.
What you need to be successful in this role:
- Proven experience in a Network Administrator role
- Hands-on experience with FortiGate SD-WAN solution
- Previous experience administrating SD-WAN networks
- 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 designadministration, 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 FortiGate 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.
Additional Positives for the Position:
- Holding credentials that demonstrates 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 networks required to meet the organization's needs.
- Training of users in the proper use of company computer technology.
- Troubleshoot network operation errors
Experience working in Windows and VMware environments
The rewards of your career at AAR go far beyond just your salary:
- Competitive salary and bonus package
- Comprehensive benefits package including medical, dental, and vision coverage.
- 401(k) retirement plan with company match
- Generous paid time off program
- Professional development and career advancement opportunities
Physical Demands/Work Environment:
The physical demands and work environment characteristics described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
- Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
- While performing the duties of this job, the employee may be regularly required to sit, stand, bend, reach and move about the facility.
- The environmental characteristic for this position is an office setting.
- Candidates should be able to adapt to a traditional business environment.
AAR provides accommodation in accordance with applicable laws through all stages of the hiring process. If you require accommodation for any part of the application and/or hiring process, please advise Human Resources.
Compensation:
The anticipated salary range for this position is$100,000 to $120,000 annually. This range reflects the base salary for candidates who meet the requirements of the role, including experience, education, and location. [In addition to base pay, this role is eligible for a 10% bonus.] AAR offers a competitive benefits package, including medical/dental/vision/life/and AD&D insurance, 401(k) savings plan with employer match, paid time off and holiday pay, as well as opportunities for professional development and growth.