Not very sure but what I understand is that you will need a solidity programmer for that. He can develop a token for you or can integrate ETH in your platform.
Have you ever thought of Bitcoin in your platform. Freelancers will be interested in Bitcoin too.
I created this thread in order to attract a good programmer to do the job.
Bitcoin integration is not a bad idea but I feel like using ETH token for deposits and btc as one of the withdrawal option.