Guidence in system programming

I am now graduated in BSc Computer Science and I am really interested in system programming. But I don't know where to start and how to build a career in it. Now I am focusing on C programming. It is very helpful if someone who works in this field gives some guidance . submitted by /u/ConsiousticVerv <a href="https://www.reddit.com/r/learnprogramming/comments/1tw