The first round was conducted on HackerRank. There were two coding questions, both of medium difficulty. They focused on puzzle-solving ability, requiring basic mathematical tricks and a bit of out-of-the-box thinking. After clearing this round, I was invited for an F2F (face-to-face) interview. There, I was again given a medium-level coding question to solve.

The sad part was the interviewer's attitude. He was quick to discourage any areas outside his domain (e.g., Artificial Intelligence) with an unprofessional smile (laugh).

Overall experience: If you find any company with a 5/5 rating on Glassdoor, you should definitely be suspicious, especially when the number of reviews is low. It's not difficult for any company to generate some good reviews from their own employees. So, be careful.

Java security.

Multithreading in Java.