Hi everyone I just started a new job in EE and am unsure about what I should do about my difficulties working with another senior engineer. My manager assigned the two of us to work on the same project but he is very rude to me. He constantly talks in a condescending tone towards me, does not give me credit for my contributions on the engineering report, has me do mundane things such as data entry. He also has another engineer from a separate department doing the work that I should be doing even though the manager never mentioned that other person! Said engineer is also late for work every day, takes off for lunch early, comes back from lunch late, and leaves home early. He also blames me for being late if I don't show up at the workstation when he does (I go back to my desk to work on other things if he is late. no point wasting time waiting for him) I'm completely unsure about how to react to this situation.