Wi-Fi Interoperability Testing, Wi-Fi 802.11 Protocols, Octoscope, RF Testing - In person interview -W2 ONLY

Cygnus Professionals Inc. · Denver, United States

Seeking an experienced Wi-Fi Interoperability Test Lead to own test strategy, execution, and onsite lab coordination for Wi-Fi connectivity and device interoperability testing. The role requires strong expertise in Wi-Fi protocols, roaming, band steering, onboarding, RF testing, and over-the-air packet analysis using Wireshark and Octoscope.

Skills: Wi-Fi Interoperability Testing, Wi-Fi 802.11 Protocols, Wireshark, Octoscope, Wi-Fi Roaming (802.11k/r/v), Band Steering, WPA2/WPA3 Security, RF Testing, Test Strategy and Execution, Onsite Team Leadership and Offshore Coordination

Ask these specifically to separate genuine Wi-Fi experts from general test managers:

1. Explain the WPA2 4-Way Handshake in detail.
2. What packets appear before DHCP starts?
3. Difference between Authentication and Association?
4. What is RSN Information Element (RSN IE)?
5. What is PMK and PTK?
6. What is Band Steering?
7. What is BSS Transition (802.11v)?
8. Explain Roaming using 802.11k/r/v.
9. How do you analyze an over-the-air PCAP?
10. How would you troubleshoot a failed Wi-Fi association using Wireshark?

Based on the discussion, the role is a Wi-Fi Interoperability Test Lead/Coordinator with a mix of technical Wi-Fi expertise (30%) and onsite coordination/leadership (70%) . The interview should focus on Wi-Fi fundamentals, interoperability, troubleshooting, IoT connectivity, lab setup, test management, and stakeholder coordination.