Hello, dear client.
Hope you are doing well and safe from COVID-19.
As a senior Full Stack developer, I've just read your description carefully and got that you are looking for a Blockchain expert.
I am familiar with Blockchain tech such as Solidity, Web3, BTC, Ethereum, Solana, NFT etc and have a rich experience in JS frameworks and libraries like Node, Express, React, Svelte, Vue, Angular.
I can help you perfectly, and you will feel the satisfaction from me because I focus on the high quality and clean code for development.
You can check my skills more detail through profile.
https://www.freelancer.com/u/bozovicp268
I believe that we will see soon.
Warm regards
Petar