I was hired as a UX professional at a software company to handle customer surveying, prototyping, and design work for our product group as well as be the creative lead for our marketing department. I have a coworker, who has put a great deal of work into fixing an antiquated product and seems super driven (which I am too), who has taken every chance he can to poison the Product team against me, talk down to me, or simply bully me into doing duties outside of my job description. At one point he said if I wanted to be "part of the team" I would program a product prototype outside of Axure (because the entire team hates doing front-end grunt work). While I can, and did, do this I am still trying to balance responsibilities actually expected/covered in my job description.
I have gone to my manager, the employee directly as a desperate attempt at facilitating healthy working dialogue, and even the COO (whom I am on friendly terms with) to try and figure out what more I can do to try to make a working relationship. (I did find out from my COO that said employee said I should be expected to code, on top of everything else, but his demand was shot down for sake of focusing in on UX, since we drastically need an overhaul.) What further complicates things is my COO (again, a friend) is good friends with our VP, who is good friends with said problem employee.
I am still unable to identify what I have done and am looking to see if anyone has run into this situation.