Excellent, thanks. I'm new to HN, a friend recommended I ask on here, but didn't want to wade in with a job posting without understanding how things work! I'll keep an eye out for Who's Hiring.
HN doesn't tend to take too kindly to none-ycombinator job postings, it goes against the spirit of the site, but as someone else mentioned, puzzles and challenges tend to bring the eyeballs to your site.