A whole lot of talking to many people for many hours during the workday. At the end of each conversation, a technical challenge was given. I spent easily 6 hours doing this interview process over 2 days. Had pretty good discussions with the technical people. The hiring manager however was disinterested almost immediately, and spent more time clicking around on his computer than engaging in the conversation. It only got interesting when told me what the job would actually entail. The role was not exactly appealing to me once it became more clear what they were after. Perhaps that was noticeable- my change in attitude, or perhaps I didn't excel during a part of the challenge, unsure.. but to be 100% ghosted after this process speaks broadly to the culture of this place. Truly I cannot fathom why you wouldn't spend 10 seconds to at least write back on an email that you're going another direction. For one, a LOT of my time spent before you even told me what the job really was. They were very cryptic & that's not appreciated. But even if it wasn't the right fit, a simple reply should be pretty much mandatory after you had a candidate invest this much time. Cmon. Clearly cultural issues at this place.