HackerRank round.

Onsite had 4 rounds:

• Round 1: Manager and System Design round.
• Round 2: API implementation round.
• Round 3: Brief chat with a junior engineer. He was really not interested in interviewing, so he walked me around the office.
• Round 4: Coding. LeetCode medium question.

I don't know why they rejected me because after every round, they gave me positive feedback saying, "You have done very well." However, they did not reject me right after the onsite.

If you don't get a reply from Visa within 2-3 business days after your onsite, then consider yourself rejected. I had to follow up with them for several weeks and finally reached out to the manager to ask for the decision on LinkedIn.

Non-overlapping intervals from LeetCode.