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# Lead Network Engineer

- **Company:** Icallidus, Inc.
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $170,000.0 - $195,000.0
- **Contract:** Contract
- **Skills:** Active Directory, Apple IOS, User Authentication, Microsoft Azure, Border Gateway Protocol, Catalyst (Software), Cyber Security, Computer Maintenance, System Configuration, Data Centers, Enhanced Interior Gateway Routing Protocol, Firmware, Networking Hardware, Internet Protocol, Internet Protocol Security (IP SEC), Internetworking, Virtual Private Networks (VPN), Multi-protocol Systems, Windows Servers, Network Control, Network Monitoring, Routing, Cisco Nexus Switches, Remote Access Technology, Service Pack, Terminal Access Controller Access-Control System (TACACS), Wireless Networks, Network Routers, Identity Services Engine, Cisco Voip, Wireless Devices, Firewalls (Computer Science), Information Technology, Cisco Firewalls, SolarWinds (Software), 3-tier Architectures, Cisco
- **Published:** October 13, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=bd53eded4c4305f6

## About the Role

* Cisco Certified Network Professional (CCNP) or Cisco Certified Internetwork Expert (CCIE), current.
 * 10 years of IT experience providing Tier 3 support.
 * 10 years in a Tier 3 Cisco network support environment, designing, documenting and supporting LAN and WAN networks, firewalls and enterprise wireless.
 * 10 years of hands-on implementation of Cisco firewalls (FPR 4112, FMC, ASA 5555), including ACLs, NAT, site-to-site and remote access VPNs, IOS upgrades and AnyConnect configuration.
 * 10 years of hands-on implementation of core switches (Cisco Nexus 7k), edge switches (Catalyst 9300-U/UXM, 3850, 3650), routers (ASR 1006, ASR 1001, 8300) and bandwidth management appliances.
 * 10 years designing, configuring and troubleshooting routing protocols, including BGP, EIGRP, MPLS and IPSec.
 * 7 years designing and implementing secure enterprise wireless with Cisco Wireless LAN Controllers (including WLC 5520 and 9800) and EAP-TLS or PEAP.
 * 7 years configuring, managing and troubleshooting Cisco Identity Services Engine (ISE), including TACACS, RADIUS, rules, policy sets, posture, and authentication and authorization for wired and wireless networks.
 * 7 years configuring, managing and troubleshooting ExpressRoute connections to Microsoft Azure.
 * 5 years with network monitoring and management tools such as SolarWinds and Cisco DNA Center.
 * 5 years with Cisco VoIP infrastructure, operations and IVR technologies.
 * 3 years with Managed Trusted Internet Protocol Service (MTIPS) and public IP infrastructure.
 * 2 years of general Windows Server experience, including Active Directory, DNS and DHCP.
 * Must live within commuting distance of Chicago and work on site., * Active CCIE, strongly preferred.
 * Experience leading other network engineers.
 * Associate degree or higher., We provide reasonable accommodation to qualified individuals with disabilities, for pregnancy-related limitations, and for sincerely held religious beliefs, as required by law. Qualified applicants must be able to perform the essential functions of the position, with or without reasonable accommodation. To request an accommodation during the application or interview process, contact csfaustin@icallidus.com.

## Description

* Lead network engineering for the team: set technical direction, make the hard troubleshooting calls, and represent network engineering with the Government.
 * Operate, maintain and administer firewalls, routers, switches and wireless equipment, and respond to, troubleshoot and fix network problems.
 * Perform hardware maintenance and upgrades, IOS upgrades, router and switch configuration updates, firmware upgrades and security patches.
 * Monitor routers, switches, firewalls and wireless controllers to catch incidents, outages and degradation early, working through incident management.
 * Operate and maintain connectivity between the headquarters data center, Azure and the failover sites.
 * Keep enterprise network architecture diagrams, equipment room layouts, rack elevations and configurations accurate, documenting each change within two business days.
 * Produce weekly network availability and utilization reports, support acquisition of network equipment, and coordinate upgrades with engineering and IT security for Government approval.
 * Configure network devices to NIST, USGCB and DISA STIG baselines.