Initial phone interview was a get to know conversation that did not follow any standard process. Was told that I would be scheduled for a second interview after the July 4th holiday by the head of TA. Sent a follow up email at the end of that week and never received a response back. Disheartening that as a candidate you're not work the time it takes to send a simple no thank you email. Even an automated one would have been better than completely ignoring someone.