The thing I hate the most is that 80% of the time you will be kicked out of the interview process before you even talk to the person you will be working with.

Your GitHub doesn't matter Your resume to a degree doesn't matter If you can answer the questions and solve the problems that matters

...but what matters most is if you have a good attitude and can do the job you are being hired for and it's pretty rare someone hires you based on gasp the job they expect you to do.

Show me someone who can write merge sort from scratch and I'll show you an unemployed programmer.