My brother had an internship in a medium-sized company, and after 6 months, a new product (that he was hired for basically) and 3 new internal tools (including one for reading data trace, which, after reading this, is quite a propos), he was hired as a staff engineer.

I do not have his proactivity for sure, nor I have his ease with other people, but I managed to land my job in an infra/tool for network and security without much difficulties.