what kind of career do you have? Also what porn studio are you doing porn for? Depending on how major the studio is and also depending on how involved you get into it and what your field of work is you may actually not even have an issue. I've shot professional porn and i've done TONS of amateur videos and they are ALL over the internet and I have never had my work contact me about it. The only issue you would run into is if you got to work for a LARGE company that does background checks and what not. Or if you went into any kind of politics or was a high up account manager or what not. Like I said, depends on the porn company, job, and how far you want to go. If you just do one movie, chances are, no one from your work will see it or even if a few do none will out you.