The company I am working for consists of several smaller departments. My current position in department A is on a 2 years temporary contract. I have started working here this year in May. I like the job but I feel like I am not challenged enough with the tasks. Now I recently had the chance to talk to the boss of department B where he basically said he would hire me once the company has released the final job application search form. This will probably be done in the next three months. The work, department B deals with, is much more catering to my interests and future job perspective.
Now I am in a pinch. On the one hand since this is one company and everybody knows each other I feel like there will be gossipping or bad blood. Also I feel like it is unethical. On the other hand I could lose a big opportunity.
FYI: This is also my first job and I am fresh out of university.
Does anyone have experience with this problem or give me insight based on his/her thoughts?