Joe, I think you'll be much better off refining your marketing and sales skills and promoting yourself rather than using a broker like that. They will eat your profits and they have ZERO loyalty to you.
Build your brand, hone your skills, and capture ALL of the money or yourself.
Yes in the drone world there really is no need to have a job posting site. If you want a drone pilot all you gotta do is ask and you will have a dozen of us knocking at your door.