I have recently started a new role working within a project group and one of my colleagues on the team is micro-managing me - she is neither my manager or the project manager!
She is constantly interfering in my work, questioning everything I say and generally treating me like I am much more junior than her (we are at roughly the same level).
We are both 'specialists' on the project (say IT and Finance for example) and I would never dream of questioning her as I respect her experience and knowledge so not sure why she feels she can question me. We are both in middle management so in my view, that comes with a certain level of expectation that you will complete the work you need to do when you need to do it
She is extremely tight with the project manager and has been on the project for much longer than me and I feel I am unable to make a good impression with the team as she is undermining me.
She is extremely well thought of within the team and my manager also thinks highly of her so I know there is no point in taking it anywhere.
I just need strategies to deal with the interference on a day to day basis before it drives me crazy.