Dell Technologies Principal Software Engineer interview questions

I have gone through three rounds. It took each round around 1hr and did well. Mostly first round will take more time where they will focus on the technical expertise and remaining rounds are more into to test your abilities. Final round HR , it is hardly 15mins.

Had a screening interview with three people. The interview was mostly based on systems design and previous work experience. It was a 1hr call virtual meeting on Zoom. The hiring manager was asking behavioral questions