If I understood you right, you need workforcrypto.com , dogerr.com , allcoinjobs.com or similar sites.
Unfortunately I don't know which is really good or which is "deserted". With a little bit of imagination and time you can google for more sites
I know the first one , however it dosen't seem so serious or famous , I mean you see jobs like once a week or something :
https://workforcrypto.com/top/job_board/ Last one was four days ago and the others are months ago !
For what comes to Dogerr I guess they only use Dogecoin and that's not good for me , I only use Bitcoins Also I don't buy this sentence , it seem too fake and too good to be true
""By 2020, dogerr.com will have superseded amazon.com""
and for what comes to the last one and
http://allcoinjobs.com/ it's seems like the worst because last job sumbitted was since October 2014.
I guess there is something really serious that compites with websites like Freelancer.com on the business or ever close , appreciate our help though