Really bad interview process. There were 4 rounds, and the final round is a full day of interviewing and requires doing a lengthy (>4hr) take-home assignment. All in all, it was at least a 12-15hr time commitment for the full process. Additionally, the interviewing was inefficient with repeat interviewers. Lots of red flags to watch out for: - Recruiters are not responsive and don't provide much guidance on the interview process (compare that to Meta, which helps candidates prepare and fully leads them through the process). - FTE Interviewers weren't even enthused about their own company. The culture seems to lean towards bottom->up, which creates some difficulty in getting alignment and having impact. Too entrepreneurial and isolated. Also, some DS roles seem to skew towards data analysis (creating and monitoring KPIs) which is something to keep in mind. Employees didn't seem happy about that. - Coding questions are done through an actual compiler. This creates some frustrations and waste of time if you're not familiar with the dialect of SQL they use. Seriously, who cares if you know T-SQL vs. MySQL vs. SQL-XYZ. Move to a non-compiling version or pseudo-SQL where the interviewer can move on to more effective questions rather than fixing a MySQL-specific syntax error.

So, At first it was HR interview, After that a technical interview (SQL and Python - 2 questions each) and a long code of SQL that needed to be explained. After that. I had an interview with Hiring Manager and a case study in the last round. It had 4 rounds in total.