I applied for the TLP position, and shortly after Vanguard sent me a coding challenge to complete. It was done in Java, and were medium level leetcode questions imo. After I submitted it, I heard back from them a week later to schedule a phone interview. The phone interview went well and was purely behavioral. I scheduled a super day at their offices in Malvern PA. That day lasted from 7:30 am to ~3:00 pm. There was an hour long technical interview, where I was asked general technical knowledge questions about languages and mini programs, and an hour long behavioral. There was also a technical case question where we had 30 min to prepare and present to the interviewer, and a round table discussion. Overall, the interview process was nice and so were the interviewers. However, they took about 3 weeks to come back with a response, so don't expect to know how you did anytime soon.

Phone interview that was conversational and had regular behavioral questions with some more technical questions (about risk/security) mixed in. They are kind of strict on time so did not get to ask many questions. Asked me for my salary range then proceed to tell me the baseline salary for the position which was not negotiable.