Negotiations are always welcome; I hate, however, to negotiate for salary.
There is a saying, “If you pay peanuts, you get monkeys,” and there is a significant truth behind it.
Don’t negotiate for salary, instead, my advice is. Do your homework prior to the interview.
Let me explain.
Read carefully the cv you receive from a candidate. Read not only what is written on the CV but also read behind the lines and try to understand the character and the value of the person you are going to interview.
Be aware of the following points:
An obvious conflicting role and an easy way to detect the really good salesperson from not the good one is customer support and sales.