There is a part of me that is genuinely fearful of the effect on my future hire-ability, when I admit the following: no, I will not be passionate about your product. I will be professional about it. I may even be excited about it, if it happens to be something that I think is neat-o cool. I may have a ton of fun building it. But that doesn’t really matter. You’re not hiring a Juliet to your project’s Romeo. In the final analysis, you’re exchanging goods for services.
I’m an enthusiastic and conscientious programmer. I really hope that’s enough.