Yes, this is the job I did:

https://www.xbtfreelancer.com/prj/7/need-a-simple-javascript-function-amended

And here is the BTC transaction of my withdrawal:

https://blockchain.info/tx/5c15dedccddf970add022fa4610864bec89fe8f436968f4dbba2b9cd5a75fe1e

Can also confirm I got paid.   
Processing of withdrawal took about 2 hrs t arrive to my wallet from the moment I confirmed the withdrawal following requesting for it.

Overall looks like a an interesting way of obtaining more BTC.

You can post a job on https://www.xbtfreelancer.com and have escrow service builtin.

Gracias, voy a registrarme como un diseñador a ver como es.