Network Administrator

Cosm•Los Angeles, CA

8d•Onsite

About The Position

Cosm is a global technology company that brings experiences to life in immersive environments. We help our partners create spaces and content that blur the lines of real and virtual across three primary markets: Sports and Entertainment, Science and Education, and Parks and Attractions. Cosm was born from the fusion of some of the greatest innovators in the history of technology. Evans & Sutherland, Spitz, Inc., and Cosm Immersive combined forces to power the immersive experiences of the future as Cosm. Innovation is in our DNA. IMPORTANT NOTICE FROM THE COSM HUMAN RESOURCES & RECRUITING TEAM REGARDING A RECRUITING SCAM: Your security and trust matter to us. Please note that Cosm Recruiters will ALWAYS communicate with you from an official "@Cosm.com" email address or through authorized platforms such as LinkedIn. We will NEVER request payments, banking details, or personal financial information during the recruitment process. If you receive a suspicious communication or job offer claiming to be from Cosm, please do not respond or share personal information. For official Cosm opportunities, always visit www.cosm.com/careers. Summary: Cosm is looking for an experienced network administrator to support and maintain our global, multi-site network infrastructure. This role centers on day-to-day administration of our Arista switching environment, alongside our Palo Alto firewall fleet managed under Panorama, plus Arista wireless and Network Access Control (NAC). This is an exciting opportunity to be part of a team at the forefront of immersive entertainment technology, supporting live production environments across hundreds of events in our venues.

Requirements

6+ years of experience in IT.
4+ years of experience in Network Administration, focusing on management and Tier 2 support.
Cisco Certified Network Associate (CCNA) required.
Strong hands-on experience administering Palo Alto firewalls under Panorama, including monitoring, reviewing security logs, updating policies, and managing PAN-OS software/content versions.
Able to manage, update, and troubleshoot Cisco or Arista switches, including experience with CloudVision.
Able to manage, update, and troubleshoot Routing/Switching/Wireless networks.
Willingness to travel and ability to perform physical tasks such as rack and stack.
Organized, detail-oriented, and able to manage multiple projects simultaneously.
Experience with Cisco, Palo Alto, Dell, Ruckus, and Arista.
Familiar with cloud network design (AWS Preferred).
Experience with network security.
Familiar with Infrastructure as Code methodology.
Familiar with BGP routing protocol.
Familiar with troubleshooting with ISPs.
Familiar with supporting media and broadcast systems.
Familiar with live entertainment operations.

Nice To Haves

Palo Alto certification (PCNSA or PCNSE) preferred; additional Routing/Switching/Firewall certifications are a plus.
Experience with CI/CD platforms and infrastructure-as-code tooling such as Ansible and Pulumi for automating network provisioning, configuration, and deployment.

Responsibilities

Work with Network Engineering, internal IT Teams, and vendors on building and maintaining a multi-site network infrastructure spanning arenas, venues, broadcast flypacks, and regional MDFs.
Administer, monitor, and maintain a Palo Alto firewall fleet via Panorama, including reviewing security logs, updating security policies, and managing NAT/VPN configurations.
Manage PAN-OS lifecycle across the fleet: track software/content versions, plan and execute upgrades, and drive version standardization across sites.
Manage Cisco or Arista switches, including VLANs, VRFs, and some routing. Experience with CloudVision (Arista monitoring/management) is a plus.
Work with VPNs, security protocols, and TCP/IP troubleshooting.
Serve as Tier 2 support for networks once implementation is complete.
Manage wireless networks, Network Access Control (NAC), and network monitoring.
Utilize Python or Ansible for network automation.
Act as part of the Global Operations team in monitoring the overall network.
Travel as needed and participate in rack and stack activities.
Update and maintain network documentation