Hi there,
Senior multi-blockchain/multi-cryptocurrency developer here particularly an expert with Bitcoin Core / Litecoin Core, Ardor/Nxt, Stellar, Ethereum, and IPFS, with wide knowledge of Hedera Hashgraph and Hyperledger.
Aside from my profile ratings, please see my other blockchain projects awarded/completed by me here in Freelancer:
https://www.freelancer.com/projects/javascript/Build-API-proof-concept/
https://www.freelancer.com/projects/software-architecture/Blockchain-Project/
https://www.freelancer.com/projects/html/Ethereum-blockchain-project/
https://www.freelancer.com/projects/software-architecture/Requesting-Advice-from-Blockchain/
I am also an expert API integrator from an overall 20 years of experience doing integration jobs using simple RESTful techniques to full-blown SOA with enterprise service buses (ESBs). Recently I have also added ReactiveX to my API integration skills; also checking out GraphQL.
I am an individual/independent freelancer.
Please see my profile for the rest of my portfolio, work history, and qualifications.
https://www.freelancer.com/u/chesslover
Thank you.