Under my point of view, it depends on what kind of 'porn' company offers. I understand that, if they are hiring people in a formal way, it is a completely legal company that pays taxes, respects rights of people involved, etc.

If thats the case i would have accepted the job.

There may be adult content companies that operate in the shadows, using legal rushes, and this may cause people to be cautius before acceping a job in this sector.

But think about it: Well known multinationals exploits children in poor countries, contaminates nature, false contability, and almost no one would reject a job in one of this companies.
Why? Because their products seems to be morally acceptable in our society.

I have developed programs with Perl for one of the biggest pharmaceutical companies.
Every day you see people dying in places that no one gives a sight but non profit organizations.
To give you an example, there is an illness that causes blindness for the rest of your life that affects children. Using a first world medicine, that costs $30, this can be healed. 95% of those children remains blind, in part because that prodcut cannot be produced without infringing medical patents.

Im not pointing those companies as the direct cause of this. What im saying is that i would personally find myself doing a job more acceptable morally, by programming for an adult entertainment company that usually makes people happy in some way.

I of course respect your decision, that is just my oppinion.