Found them on Glassdoor and emailed over a CV. About 4 days later got a phone call which involved a quick informal chat about the role and myself, the person I spoke to seemed very understanding of the fact that I hadn't prepared for this and as a result hadn't yet done much research on the role. I was invited to attend an in person interview, and they covered my travel expenses in cash on the spot.
I was interviewed by two members of the team I was applying to, who were both very friendly and casual. They asked me a pretty simple logic puzzle, and I went through my working out on the white board. They then asked me a few standard interview questions about why I thought I'd be right for the role etc.
They said it wasn't important that I din't have a car, as long as I got one within a year, and that I'd be expected to live within about 5 miles of the office (around Headingley, for example).
After the interview they sent me back to the waiting room and about 5 minutes later someone different came and told me I'd hear back soon, I assume they were deciding whether to give me a second interview straight away or not.