[jjp]

You say that "there is always a corner case that i don't think about or some test that is trivial to the QA team but i didn't do, and my code end up being broke". Is the corner case that you missed a technical issue or is it that the QA team has a better understanding of the business problem that is being solved and that hasn't been translated into a requirement/user story that you would even know to code against.

[AstralStorm]

Also known as "lazy QA team who do not automate tests" problem. This is because testers are paid to little and writing good automated tests is about as hard as writing the tested code in the first place.