It was initially a take-home case study to perform basic data analysis, which I had to explain to a current employee. Then there was a written exam on basic math, logic. probability, stats, and Zoom interview that lasted for around 3 hours. Fairly long process but HR was professional.
I applied through university. The process took 2 weeks. I interviewed at Acumen
Interview
Python projects for the first round, which is super easy. The second round is a phone interview. The phone interview is mainly about the python project you did in the first round. The third round is an in person interview at the headquarter. The third round interview will take the whole day and you will talk to a bunch of analyst