Apparently all the large technical companies do this. I had this happen after I did 2 phone interviews with one of the big silicon valley tech companies after

Apparently all the large technical companies do this. I had this happen after I did 2 phone interviews with one of the big silicon valley tech companies after their recruiters called me for 3 years. They had a position they were interested in me for specifically but were waiting for the manager to get back from leave. Said they'd call when she was back. Didn't hear anything. Months later got a call asking how it went and if I was still interested. Told them I'd never heard anything and was still interested. Never heard back again. I've had friends say Twitter is the worst at this, followed by Google, then Facebook. Amazon, too. It's the nature of using so many different recruiters. My friends have said that the companies all seem to treat potential candidates badly and you only get the job if you pro-actively call back again and again and again.