Network Engineer II

Primary Purpose: The Network Engineer II supports ADUSA's large-scale network across retail stores, distribution centers, offices, data centers, Equinix, and Azure. The role implements and troubleshoots LAN, WAN/SD-WAN, wireless, firewall connectivity, DNS/DHCP/IPAM, and network monitoring services. The engineer assigned incidents and changes through diagnosis, validation, documentation, and closure, and participates in critical incident response and on-call support. Duties and Responsibilities: • Troubleshoot Layer 2 and Layer 3 connectivity across Cisco, HPE/Aruba, Arista, Fortinet, and Palo Alto environments, including VLANs, STP, LACP, SDWAN, Routing, and NAT. • Support retail WAN and SD-WAN across MPLS, broadband, and LTE, including path selection, failover, latency, packet loss, and brownout conditions. • Implement approved ServiceNow changes with tested steps, validation evidence, backout plans, and accurate closure records. • Support Aruba wireless and ClearPass/NAC, including AP health, client connectivity, authentication, RF performance, and coverage issues. • Monitor and troubleshoot with SolarWinds, Datadog, FortiAnalyzer, SNMP, syslog, NetFlow, and packet captures. • Support Infoblox DNS/DHCP/IPAM and F5 load-balancing dependencies during incidents and changes. • Own assigned incidents through service restoration, technical updates, root-cause analysis, and prevention actions. • Maintain network diagrams, inventories, standards, SOPs, MOPs, and configuration records. • Build reporting, and repetitive operational tasks. Drive ADUSA MSP to maintain, SOP, runbooks • Participate in after-hours changes, on-call rotation, and critical incident support. Basic Qualifications: • Bachelor's degree or equivalent practical experience. • 3+ years of enterprise network operations or engineering experience in a multi-site environment. • Strong knowledge of TCP/IP, subnetting, VLANs, STP, LACP, HSRP/VRRP, BGP, OSPF, QoS, NAT, and VPN technologies. • Hands-on experience with Cisco IOS-XE, HPE/Aruba switching, Fortinet FortiGate, and enterprise wireless. • Experience troubleshooting SD-WAN, wireless, NAC, routing, and application connectivity issues. • Ability to analyze packet captures, flow data, SNMP, and syslog and isolate issues across network, server, cloud, and application boundaries. • Experience with ServiceNow incident, change, and problem management processes. • Clear technical communication, accurate documentation, and ownership through resolution. Preferred Qualifications: • CCNA or equivalent knowledge; CCNP, Fortinet, or Aruba certification is a plus. • Experience supporting a large retail or distributed network. • Experience with Infoblox, F5, FortiManager/FortiAnalyzer, SolarWinds, or Datadog. • Working knowledge of Equinix and Azure networking. Salary Range: $101,360.00 - $152,040.00 All ADUSA job offers take multiple factors into consideration including, but not limited to salary range, internal equity, a candidate's qualifications, geographic region, job-related knowledge and skills. This position is eligible for an incentive bonus based on company performance as provided by the plan terms and governing documents. #LI-Hybrid #LI-SC1