It is currently gender locked. Rumor floats around saying Developer is looking into it and maybe, just maybe, they will get rid of gender lock.
But to answer your Female warrior question. Warrior is the only class that is in every race, which means both gender, perhaps not a female Human, but if you want a female warrior, Elf and the other female race (Forgot the name) also has warrior as profession. To save you the trouble with the upcoming question, no, race doesn't not affect your stats, right now, they just look different.