QUICK TIP: Sometimes the domain you want for your new job board is taken. In that case it may be better to see if its for sale on sites like SEDO.
SEDO is a domain marketplace that has over 69k job related domains for sale right now. Most are available for a few hundred to a few thousand dollars. I’ve bought a few domains here over the years so its worth a look if you are looking for a short domain with your keyword of choice.