I applied via Aerotek recruiting company which resulted in two interview processes.
The first one was a personal interview with Aerotek that explored my experience, education, and as well as my personality. I was a second year student at Irvine looking for an internship opportunity and had experience with C, C++, python and linux coding. To add I also had many extracurriculars like participating in the engineering student council boxing club and archery club.
Once I finished and got a call back, I was called in with a manager of the Execution team within Wells Fargo for another interview. This team specialized in data analytics, of course, so I was asked many questions on if I was familiar with SQL and Excel. It was also important to note that I was also given a hand written test on the SQL language - about a 4 page test with both multiple choice and free response questions. I honestly forgot how long the test was but I think it was about 30 minutes. Forgive me, I don't remember the specific questions they asked but from what I remember, the test covered VERY rudimentary SQL code. I ended up getting a really good score and got only 1 wrong. To add, I did not study SQL in my college and I only studied through w3schools.com so doing well on the exam was not that difficult if you studied the basics before hand. After the test, I was asked a few more questions about how I did well with teams - communication wise, if a problem surfaced, how would I solve it, if a team member did something wrong, how would I go about it and whatnot.
Very general interview questions overall so key points are that there is a test and questions if you know your code well. Good luck out there!