Mortgage wanted - no current income

Hey,
I'm currently a student about to graduate, I've secured a job that starts in september on 26500 per year with likelihood to rise every 6 months.

My job is in a new location, and id like to buy a house or flat in august. I have a 30k deposit and I'm probably looking to buy a house for about 120k.

I was wondering if anyone knew if this was possible, since ill technically have no income at all when I wish to initially take the mortgage out, only proof of future income.

thanks in advance for any help and advice people might have