Ask HN: How to get a job at cybersecurity?

Hey , I am graduated computer science student, I have experience developing android apps and some google appengine backends ,lately i am interested in cybersecurity , it sounds like a really interesting domain , and i want to know what learning paths should i take to get a job in this domain , since i assume my computer science background is different than pen testing ?? can you provide me resources (Books ,CTFs , Advices ) ? Thank You