If you want a special job, why not approach it in a special way? Instead of looking at job boards, pick a company you want to work for, and keep chasing them until you succeed. If you have any vague idea at least about the field you want to work for, go for some industry exhibitions, just to check out the companies are there and what they work on.
One of the most interesting companies I have ever worked for used to post job ads along the lines of "Looking for software devs who know what git is". But they do very exciting measurement devices used by other high tech companies - you would never know until you are in, or if you know the company from other places.