The interview process looked smooth initially. I went through all the stages and a low level socket programming assignment which I did. I got through all the stages until the final stage.

After this they requested for references which I provided and then they sent a rejection without stating reasons. I sent an email to ask for a more detailed feedback which wasn't responded to. It's a shame I spent so much energy trying to work with a company I'm a huge fan of and they can't even grace you with an honest feedback after so much effort.

The tests were technical. There were questions on SSL, SSH, TCP and IP protocols, as well as the OSI model, Linux shell and kernel.