Location: Chicago, IL - Onsite OnlyCandidates must be able to work onsite at Chicago-area data center locations, including O'Hare and Midway. This is not a remote position.What You'll Do- Configure, administer, maintain, and troubleshoot Palo Alto, Fortinet, Cisco, and related enterprise network security platforms.
- Manage firewall policies, ACLs, NAT/PAT, segmentation, logging, VPN connectivity, routing, switching, and LAN security controls.
- Troubleshoot enterprise network and firewall issues using ICMP, DNS, packet analysis, logs, command-line tools, and monitoring platforms.
- Configure and support routing protocols including OSPF, BGP, static routing, and related enterprise network services.
- Configure and troubleshoot TCP/IP, IP subnetting, spanning-tree protocols, VLANs, trunking, tunneling, vPCs, switch stacks, and VSS.
- Support IPsec VPN configuration, troubleshooting, and connectivity.
- Perform IOS upgrades, password recovery, and related network maintenance activities.
- Support Infoblox and DNS architecture where applicable.
- Monitor network security environments using tools such as Panorama, FortiManager, Cisco DNA Center, Cisco Prime, Cisco ISE, SolarWinds, or similar platforms.
- Support incident response, outage troubleshooting, service restoration, and escalation activities.
- Maintain accurate incident, service request, and change-management documentation in ServiceNow.
- Develop implementation plans, test plans, contingency plans, backout plans, firewall change documentation, network diagrams, and operational procedures.
- Coordinate work with project managers, technical leads, vendors, client stakeholders, and internal infrastructure teams.
- Contribute to consistent change-management, documentation, security, and operational procedures.
- Perform other network and security-related activities as assigned.
What We're Looking For- 5+ years of enterprise network engineering, firewall administration, or network security operations experience.
- Strong hands-on experience administering and troubleshooting enterprise firewall and network environments.
- Palo Alto PCCET certification or equivalent experience.
- Fortinet NSE 1-3 or higher, or equivalent experience.
- Strong understanding of firewall rules, ACLs, NAT/PAT, network segmentation, logging, and security policy enforcement.
- Hands-on knowledge of TCP/IP, IP subnetting, routing, switching, VLANs, trunking, spanning tree, and enterprise network architecture.
- Experience configuring and troubleshooting OSPF, BGP, static routing, and related network protocols.
- Experience with IPsec VPN technologies.
- Strong incident-management, troubleshooting, escalation, and change-control discipline.
- Experience using ServiceNow or a similar enterprise ticketing and change-management platform.
- Strong Microsoft Visio or network diagramming skills.
- Excellent customer service, written communication, verbal communication, documentation, and problem-solving skills.
- Ability to work effectively across client, vendor, technical, and management teams.
Preferred Qualifications- Cisco CCNA or CCNP.
- Additional Palo Alto, Fortinet, Cisco, or network security certifications.
- Experience with Panorama, FortiManager, Cisco DNA Center, Cisco Prime, Cisco ISE, SolarWinds, or similar enterprise management platforms.
- Experience with Infoblox and DNS architecture.
- College degree in information technology, cybersecurity, networking, computer science, or a related field.
- Experience supporting highly regulated, mission-critical, or airport technology environments.
Additional Requirements- Ability to work onsite at Chicago O'Hare and Chicago Midway airports as the standard work arrangement.
- Must be able to pass a TSA background check.
- Valid Driver's License or State ID required.
- Ability to support incident response, maintenance windows, and other operational requirements as needed.
Job DetailsPay: $130,000-$150,000 annually, negotiable, plus benefits
Location: Chicago, IL - City of Chicago Airports
Work Arrangement: Onsite; this is not a remote position.
Department Technology Locations Chicago
