I work at a bank. I recently became a permanent employee where I worked as a temporary employee for 6 months. The company recently switched to a new core system, and there are a lot of problems to fix. Some problems are bigger than others. The co-worker who has trained me for the past 6 months is a very vocal opponent of the new system and is constantly telling me how bad the system is and how management is not transparent with what is being done to fix the problems.
I'm on the fence because it's like I am a new employee and I want to do a good job, and I am willing to do what is asked of me with no complaints so I can keep the job. This co-worker has been on the job for over 30 years and has been through several core conversions. So, she's a veteran and I would think a good judge of how a core system should work. Due to the number of problems arising with member's accounts, our department now has to work on tasks to rectify these accounts in addition to our standard duties. This co-worker is not happy about this and is constantly complaining. I get an earful because I often have to go to her for help in resolving these tasks. Listening to her is draining and lowers my morale. My attitude is just to fix the problems and move onto the next one and get it done. My co-worker's attitude is if management hadn't gotten a cheaper, inferior system, we wouldn't have these problems, and she has said she will get to the tasks when I can, so not making them a priority.
She's a veteran and very knowledgeable, and I still want to learn from her, but being around her negativity is a drag. I think if I confront her and tell her she's being really negative and not helping, I will make an enemy and she won't help me anymore. I am considering talking to the manager about her and possibly getting some pointers on how to deal with her. But then I think doing that may damage my career and the manager may not want to take sides. But then again she may be helpful. Is it a good idea to go to management to complain about this complaining co-worker?