Visa

You get a HackerRank problem as the first round of interviews. If you pass that, you move on to an interview with an actual person. It was pretty difficult, as they expect the best time complexity for the specific problems.

For the technical interview, the interviewer asked me basic conceptual questions about data structures and algorithms (hashmap, etc.). Please note that most other people I knew were asked LeetCode questions. For the behavioral interview, they asked

Coding test with 4 DSA questions, followed by a technical interview (2 DSA questions, 1 SQL query, 1 math puzzle) lasting 45 minutes. The interview usually lasts for 1 hour, but if you finish everything quickly, they won't extend it.