Network Administrator

Full Time Regular – Irvine, CA, US

American Vanguard is a diversified agricultural and specialty products company focusing on crop protection, turf and ornamental markets, and public health applications. The Company markets its product lines in the USA and internationally in 24 countries including Brazil, Mexico, Canada, Australia, New Zealand and throughout Asia.

American Vanguard is headquartered in Irvine, California. This position is on‑site. You will join in the process of upgrading and standardizing our IT functions to bring uniform and consistent global standards to all of our worldwide entities.

The Network Administrator is responsible for the day‑to‑day administration, maintenance and support of the organization’s network infrastructure, including LAN, WAN, SD‑WAN and telecommunications systems across multiple sites. Reporting directly to the Director of Infrastructure & Operations, this individual plays a key role in ensuring network performance, availability and security across the enterprise.

• Administer, monitor and maintain enterprise network infrastructure including routers, switches, firewalls, wireless access points and SD‑WAN across all organizational sites
• Ensure network availability, performance and reliability through proactive monitoring, capacity planning and timely troubleshooting of issues
• Configure and manage network security controls including firewalls, VPNs, ACLs and network segmentation in alignment with organizational security policies
• Support WAN connectivity and telecommunications infrastructure, including carrier circuit management and service provider coordination
• Assist in the design and implementation of network upgrades, expansions and technology refresh initiatives as directed by the Director of Infrastructure & Operations
• Maintain accurate and up‑to‑date network documentation including diagrams, configurations, IP address management (IPAM) and change logs
• Respond to and resolve network‑related incidents and service requests within defined SLAs; escalade complex issues as appropriate
• Collaborate with the cybersecurity team to support network security initiatives, vulnerability remediation and compliance requirements
• Participate in on‑call rotation to provide after‑hours support for critical network incidents and outages
• Support disaster recovery and business continuity efforts related to network infrastructure, including DR testing and failover procedures

• 3+ years of hands‑on experience in network administration or a related infrastructure role within an enterprise environment
• Experience managing multi‑site WAN environments including carrier circuit management and telecom coordination
• Experience with SD‑WAN technologies and cloud networking concepts (Azure Virtual Network, Express Route or equivalent) preferred
• Familiarity with ITIL‑based change management and incident management processes
• Preferred certifications:
  Cisco CCNA or CCNP, CompTIA Network+, Fortinet NSE or equivalent vendor certifications
• Bachelor’s degree in Information Technology, Computer Science, Network Engineering or a related field desired
• Associate’s degree with equivalent work experience may be considered.

• Strong hands‑on knowledge of enterprise networking technologies including routing, switching, VLANs, QoS, BGP, OSPF and MPLS
• Experience with SD‑WAN platforms (e.g., Cisco Meraki, Fortinet, Velo Cloud or equivalent)
• Proficiency with firewall administration (Cisco, Palo Alto, Fortinet or equivalent) and VPN configuration
• Familiarity with network monitoring and management tools (e.g., Solar Winds, PRTG, Cisco DNA Center or equivalent)
• Solid understanding of TCP/IP, DNS, DHCP and network security principles
• Strong troubleshooting and analytical skills with the ability to diagnose and resolve complex network issues efficiently
• Good communication skills with the ability to work collaboratively across IT teams and with external vendors
• Highly organized with strong attention to detail and a commitment to accurate documentation and change management practices
• Professional office and data center environment;…