System Administrator II - Network

Flyover in Chicago•Chicago, IL

3h•$105,000•Hybrid

About The Position

The System Administrator II - Network owns our network and connectivity infrastructure end to end across sites, from core switching and routing to wireless, firewalls, and VPN. This role is the network subject matter expert on the IT team and keeps our locations reliably connected, secure, and performant, working closely with the IT Director and site teams. As the IT team member based at this location, the role also handles occasional Level 1 IT tasks that need to be done in person (no more than about four hours per week) and works a hybrid schedule, with on-site attendance expected when required. This role is posted in Chicago, IL or Las Vegas, NV. Early priorities include documenting the current network, closing security gaps, and standardizing configuration across sites.

Requirements

Strong network fundamentals: TCP/IP, routing, switching, DNS, DHCP, subnetting
Firewall, VPN, and network security configuration and troubleshooting
Wireless design, deployment, and optimization
Able to diagnose complex connectivity and performance issues, including under time pressure
Self-directed: comfortable owning a domain and setting priorities with minimal oversight while collaborating across a cross-functional IT team
Comfortable handling occasional hands-on Level 1 IT tasks, such as desktop, printer, and peripheral troubleshooting, with a customer service mindset
Bachelor’s degree in Computer Science, Information Systems, or a related field, or equivalent practical experience
5+ years in network administration or engineering, including time owning a multi-site network end to end
Hands-on with enterprise switching and routing (VLANs, OSPF/BGP or static routing, QoS)
Firewall administration (Palo Alto, Fortinet, Cisco ASA, or similar) and VPN configuration
Enterprise wireless design and administration; network monitoring tools and structured troubleshooting

Nice To Haves

SD-WAN
Meraki or Aruba
cloud networking (Azure/AWS)
scripting/automation
CCNA/CCNP or equivalent
small-team background wearing multiple hats

Responsibilities

Design, configure, and maintain LAN/WAN, switching, and routing across multiple sites, including VLANs, inter-site connectivity, and performance monitoring
Administer firewalls, VPNs, and network security controls: rules, segmentation, and secure remote access
Deploy and manage enterprise wireless (controllers, access points, SSIDs, coverage and capacity planning)
Monitor network health and availability, set up alerting, and respond to incidents, outages, and performance issues
Maintain network documentation, diagrams, IP address management, and change records
Partner with vendors and ISPs on circuits, escalations, and hardware, and manage refresh and capacity planning
Serve as the network SME within the IT team: define standards, share knowledge with peers, and evaluate new technologies as the environment evolves
As the IT team member on site at this location, handle Level 1 tasks that need to be done in person (hardware setup and swaps, printer and peripheral issues, hands-on troubleshooting), up to about 4 hours per week; remote support is handled by the broader IT team
Other duties as assigned