Besides his many contributions to Nanog, I knew Vij from Twilio. He was very willing to share his time at one of the Twillio conferences, where I had been hired to stand up the conference WiFi network on a leased gigabit pipe on very short notice. I became a Twilio user as a result of his enthusiasm. I know he contributed to the IAB, and had stints at both Google and Microsoft.
In particular, I recall his enthusiastic and extremely detailed 2010 NANOG49 talk “Worse Is Better”, about Google’s network architecture.
He will be missed.