Visa Inc. Software Developer interview questions

Contacted by recruiter to arrange a 30-minute phone interview with an engineer, then invited to complete an online coding exercise. Invited onsite within a few days of the coding exercise for interviews, three 45-minute rounds of technical interviews with engineering staff. Interviewers seemed generally unhappy, and they asked vague questions and didn't provide much clarification when I asked for it. One interviewer was playing with their phone while I was telling him about myself. They took really long to get back to me.

Talked to the recruiter at a career fair and got the interview on the spot. When I went for the interview it was pretty informal and a one on one interview. It was pretty easy and I thought I answered the questions well.