For my passionate coders out here, I have some tips I learned over the years in a business/IT environment.

1) Don't let stupid management force you into making decisions that will provide a bad product. Tell them your opinion and why you should do it that way. Never just go with their decision.
2)F@#k hackathons, you're basicly coding software for free, that the company might use. Want to probe yourself? Join a community and participate in their challenges.
3)No matter how good you are, haters are common.
4)Learn to have a good communication, some keywords are important to express yourself to other developers or customers. Try crazy things, don't be shy.
5)Never stand still, go hear at other companies what they offer, compare and choose your best fit. This leads me into point...
6)if you've been working for over a year and feel that you have participated enough in the companies growth, ask a raise, don't be afraid...you're wanted on the market, so either they negotiate a new contract or you find another job.

I'm sharing these with you as I made many mistakes regarding these points, I have coded for free or invested so much time in a company just to prove myself. But at the end I realize that my portfolio is enough to prove that I'm capable of doing the job. They don't like me? Or ask me stupid questions that I can google in 5 minutes. I'll just decline the job and get something better. Companies end up giving me nothing in return compared to the work I have put into it. At the end after some struggles you'll find a good fit and that's so important for your programming career. Burnouts happen quite often if you're just a coding puppy.

If some of you still have additional tips be sure to post them under here