1st round Cultural interview, 2nd round Technical interview where you discuss a project (usually a side project) and evaluate technical details, 3rd round final cultural interview with leadership, Moves fairly quickly, total interview time across 1-2 weeks.

They're interview process (which I've spelled out) is quite unconventional, probably not for the better. I was contacted directly by an Engineer after applying. (They don't seem to have any recruiting staff, so all communication happened over email with different Engineers.) The first round was an interview with two Engineers in which we talked about my past experience. I was informed the 2nd round would be me talking through a coding project I'd built and the 3rd round would be an interview with someone on the leadership team. This first interview felt like a pretty standard fit interview. The second interview was my last step in the process and I found it quite odd and disappointing. Instead of doing a livecoding exercise in front of the interviewers, they have you send them a project ahead of time and talk through it for an hour to 2 Engineers (different people from the 1st interview). I don't do any open source coding on the side and while I've built projects at companies I'm quite proud of, I don't have access to that code to be able to show it. I sent them a project I'd recently completed for a Senior Engineer process at another company and asked if it'd be good enough, acknowledging it was significantly smaller than a production project. I asked if I should hold off on interviewing to build something bigger but the interviewer reassured me that it should be totally fine. The interview itself seemed to go great. I was very proactive in communicating the technical decisions and tradeoffs I made and they asked 0 questions afterwards. I even talked through the tech design for a previous project at a company I'd previously worked at in addition. They came off as nice but asked very few questions and every question they asked I had an answer they seemed to agree was very solid. The next day I got a rejection email from the Engineer with no explanation. I tried to offer that I'd be happy to do a bigger project or a FE project to demonstrate my skills and never heard back. It just seems disrespectful and a waste of my time and their time to tell me the project was good enough for the interview, then reject me because I can only assume the project wasn't actually good enough.