Extremely Frustrated and resentful at Work

I have been working for the same company for 13+ yrs. I am senior IT person who has contributed much to the company. Management has changed several times since I began here. The recent changes have a cross report to a woman who used to be a clerk and has now been given considerable more authority despite her lack of qualification. Although I do not directly report to her, there is an unspoken expectation that I should do whatever she asks. Because she is mostly unfamiliar with many of my responsibilities she often piles work on me that I resent. Due to this resentment I am often obstinate when she makes requests which gets her back up. She then communicates my lack of cooperation to my boss which puts me in a difficult predicament My manager is somewhat of a weak personality and she has his ear. Other members of my group seem to accept her authority and acquiesce to her requests which makes me look like a lone rebel. Any insights or suggestions would be extremely appreciated.

RJ

There is a saying in business - "learn to manage your manager". In this case, learning to manage this woman you are describing is in your best interest. I imagine she reads how you feel about her. Finding a way to be an ally rather than a foe is in your best interest. Doesn't mean you have to like her or even suck up - just treat her respectfully (I know, this won't be easy ... I had to learn this the hard way).

Once you've cooled things off with her, when she drops off some stuff on your desk that you don't rightfully own, you could say something like 'whoa, wait a minute, I am on the such and such project and giving that my full attention" and she might actually hear you.

Best wishes - resentment is no way to live.

Honestly if it were me, I would move on and look elsewhere. You've mentioned several structural changes during your time there, and these changes have caused cultural changes, too. IMO, the culture has shifted to a point where you cannot agree with it. I find it absurd to have to report to someone you aren't supposed to report to...but then get punished for not reporting?? Your manager is also spineless if you ask me. Ugh, don't get me started on a similar situation I dealt with. With your experience, you should be able to find a new job with a culture you are in agreement with.