Network Administrator
AMVAC U.S. · Irvine, CA · 5 days ago
On-siteInformation TechnologyFull-time
Job Responsibilities
- 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
- Aid 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; escalate complex issues as appropriate
- Collaborate with the cybersecurity team to support network security initiatives, vulnerability remediation, and compliance requirements
- Support disaster recovery and business continuity efforts related to network infrastructure, including DR testing and failover procedures
Requirements
- 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, ExpressRoute, 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
Skills And Qualifications
- 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, VeloCloud, or equivalent)
- Proficiency with firewall administration (Cisco, Palo Alto, Fortinet, or equivalent) and VPN configuration
- Familiarity with network monitoring and management tools (e.g., SolarWinds, 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
- Solid organizational skills with strong attention to detail and a commitment to accurate documentation and change management practices