I submitted application online, and got invitation to a statistical test. Once passed, you will receive phone interview followed by on-site interview. I went to Acumen's office, talked to 7 people. Most of the conversation is about past research experience and some basic statistical modeling questions. They also shared what projects they are working on at Acumen. The on-site interview includes a numeric/logical test. They also took me to a neighborhood restaurant for lunch.

After I submitted the cover letter, resume, transcript and sample code, I got a case analysis test by answering three questions based on a excel data. Then followed by a phone interview about resume screening. I'm going to the on-site this coming Thursday. At most 200$ reimbursement for traveling and housing. I really like the HRs there. They response super fast. I got the phone interview chance couple of hours after I submitted the case analysis, and I got the on-site opportunity 30 mins after the phone interview.