Technical Solutions Engineer, Campus & WiFi-focused - Sydney at AristaNetworks

Who You'll Work With We are seeking a Campus & WiFi-focused Technical Solutions Engineer (TSE) to join our Customer Engineering team. This is a high-impact, technical role where you will be the primary point of contact for enterprise customers deploying Arista's campus switching and wireless LAN solutions. At Arista, we do things differently. There are no scripts to follow and no "Tier 1" to hide behind. You will operate in a non-siloed environment with direct access to the software and hardware engineering teams that build the products. You will own complex technical cases end-to-end, helping customers realize the full value of Arista EOS, CloudVision, and CV-CUE (CloudVision Cognitive Unified Edge).   What You'll Do  • Act as the subject-matter expert for Arista EOS-based campus switching (CCS-710, 720, 750 series) and WiFi 5/6/6E/7 access-point platforms. • Troubleshoot and resolve complex Layer 2/3 campus network issues covering VLANs, STP/RSTP/MST, LACP, LLDP, QoS, and multicast. • Support customers deploying and operating CV-CUE (CloudVision Cognitive Unified Edge) and Arista WiFi, including RF planning, channel management, roaming, and client connectivity. • Diagnose wireless issues: RF interference, 802.11 association/authentication failures, WPA3/802.1X/RADIUS, roaming (802.11r/k/v), and throughput degradation. • Assist with WLAN controller-less architecture questions, AP onboarding, tunnel configurations, and Arista's CloudVision-driven zero-touch provisioning for campus. • Respond to customer inquiries via phone and email in a professional manner, setting clear expectations and driving to root-cause resolution. • Conduct live troubleshooting sessions, packet captures, and log analysis with customers and their network teams. • Reproduce customer issues in the TSE's dedicated lab environment to validate bug reports and workarounds. • Work with software engineering to open, track, and validate bug fixes, providing clear reproduction steps and packet-level evidence. • Document recurring issues and contribute to internal knowledge-base articles and runbooks.