I'm in that situation too. From April to August I was almost full-time, which meant that whenever I felt up to it, I presented as female. I had no job in that period, but my former employer gave me a little extra money as a compensation, so I explored my possibilities. I concluded that I'm almost ready and I feel really great as a girl but I can't maintain that look consistently enough for me to be totally comfortable and go full-time.
So I had to get a new job as a man (man, yeah sure..). That was disturbing because I liked what I saw in that 4 months. I liked myself for the first time in my life for more than a few hours, but I wanted to be prepared.
The first problem was my CV. I had to take a picture which does resemble a guy and doesn't scream weird from 1000 miles away. That was hard. I can't really fake a smile if I'm not in the mood so in the end I had to manipulate the picture so I didn't look like I'm gonna kill somebody. That alone took quite some time. I didn't think I succeeded very much so I made the picture as tiny as possible.
I was lucky, got a job quite quickly, but oh girl.. that job interview... Mr. this, Mr. that, Mr. blabla, it felt so freaking strange, it was only 4 month of girl mode and it felt strange that I was addressed as Mr. and quite a few times I had to restrain myself really hard not to slip back into girlish mannerisms.
At my previous job I tried to minimize my visible girlish things and that was quite easy because we had to wear a uniform and gloves that covered most of our bodies and wasn't in any way feminine.
That new job is entirely a new story. It's not a factory as it was at my previous job. It is a little office with no dress code. I get to wear anything I want, and after 4 months of really great time in girl mode I just couldn't go back to that "hide everything feminine" thing. So I have no visible body hair, I have long hair, my fingernails are quite feminine sometimes, I wear women's jeans and women's shoes(only trainers) and although I try to act not too girly there are quite a few times when I realize that I have a lot less control over that than I had a few months ago.
The worst thing is, I want more. I know that I need that job to fix my life and I can't afford to lose it and I like it so far, but I want to be me.