There's https://ethlance.com. I don't know how much activity it has, but I do know it will be part of a family of marketplaces called District0x [1], which should help it with adoption.
Almost all the token sales are being done on Ethereum so they'll probably be paying in ETH. I imagine Ethlance is working on integrating ERC20 payments, so you can get paid in tokens as well.
[1] https://blog.district0x.io/introducing-the-district0x-networ...