HR, 24hr take home project, tech interview, onsite. A bit unprofessional since HR is giving conflict informations. And when I try to clarify, they never get back to me. take home project was easy(data cleaning, preprocessing, building ML model) but it was not discussed during the tech interview(and it was never discussed...). Tech interview includes one math problem(probability) and one coding problem(similar to leetcode, algorithm). They don't want to keep information transparent so they want to "surprise" candidate during the interview.