You're better off going normally. And don't wear a suit, for Heaven's sake. On most guys, even, it's bad taste, and unless it's precisely an economist's or politician's job, it comes off as "just too much". Imagine on you.
I've looked for work a lot in the past, back when I was still trying to be a guy or hide the fact that I'm not really one. They were utter failures. Because it was a physical impossibility for me to appear competent or confident when I hated how I looked so much. I'm not saying you're gonna be as complexed as I was, but I would bet that it's going to show somehow.
Really, if you pass well enough, you can just simply not talk about being trans, and look like a girl, and no matter how masculine the name, they won't have a problem. My old name is never ever used for a girl, and it has no close or far female version, yet several people took me for a girl, some saying "oh, I didn't know that name existed for girls." Some people had "Gender: M" in my file and just thought someone had made a mistake basing themself on the name. And mind you, I didn't (and still don't) have any breasts and all that happened before I came out to the general public. I was just dressing androgynous-ish as a result of my decision to try to be as happy as I could until I can transition properly.
I don't see why you can't just go there full girl mode (with some well-applied make-up to add to the picture) and letting them believe away. If they ask anything about your gender, just laugh a little. They'll stop asking, 'cause then they'll feel rude asking something that was taken as a joke since the answer was supposedly so obvious.
Seriously, if being trans can in any way reduce your chances to get the job... you probably shouldn't want the job.
