I had a job interview a month ago. I signed my employment contract two weeks ago and I will officially start on September 9th. I passed my last exams last week and I will soon be graduating as an IT engineer.

A classmate working in the same company where I will start in September is planning to renegotiate his salary after graduation. Do you think I can make the same request, or would it be better to wait until the end of the trial period? Personally, I think I'm taking a risk if I ask right now.