It looks very interesting indeed.
There isn't one out there currently in the crypto world (I find ETHLance has nothing at all in regards to activity). I really hope this platform can become the next sorta Fiver for crypto, although looking at the jobs they are advertising, it is for jobs not tasks and some decent positions that will pay well. I have signed up the platform as it's free and you can apply for roles, it's worth doing! You can sign up on the link below.
https://www.beta.cryptotask.org/