The "Joel Test" lists 12 items to look for in a software company: Do you use source control? Can you make a build in one step? Do you make daily builds? Do you have a bug database? Do you fix bugs ...
Suppose you're working with bright programmer, but every time you test the code you find a serious, obvious bugs. Things the programmer could have noticed if they did their own testing before checking ...
In my firm, we don't have testers, exactly. We have analysts who translate business requirements into specifications. (Think the guy from Office Space, except these guys actually provide some value. ...