Hi,
I have the experience on blockchain development using Hyperledger swatooth 1.2.x in the following areas:
1. Design and development own cryptocurrency "stable coin".
2. Custom consensus algorithm.
3. A NodeJs application that connects to the Hyperledger sawtooth node via its REST-API end points.
4. Exposed REST-API end points that supports "User Register", Buy, Sell and Transfer coins.
I would happy to work on your similar kind of usecase with Hyperledger Fabric 2.2.
Regards,
Anuj Rana
Please let me know when we can connect for more details.