Metron, Inc. Software Engineer interview questions

First step was a call with HR. After that was a 1 hour meeting which was half behavioral with a technical question at the end. The final round was 5 hours long. Consisted of 3 behavioral / technical rounds followed by them giving a software demo of their product and then a wrap up call with HR to answer any questions. The leetcode style questions were math heavy. Not hard to come up with any solution, but you'll need a good math background to solve them optimally. They called me saying I was rejected.