AI won't make coders unemployed. It will simply create a new type of job, like tensor flow programmers. This is same as C++ programmers who some way generate assembly code by using a tool called compiler.
The first iteration, maybe not. But the end goal for a general AI is to have it close over - i.e. have an AI capable of programming itself. At this point you enter the realm of recursive self-improvement, with no humans necessary in the loop.