Hi... I am a full stack developer having 5+ years of experience in web application development. I have gone through your requirement and I can deliver your requirement
I have developed an unguided ethereum blockchain DAPP in supply-chain. look into this URL to know about it https://slensupplychain.herokuapp.com/
Refer my gitlab to know my coding standard https://gitlab.com/aadhavangs92/foodsupplychain
In the above said application I used below tech stack.
Also I have good experience in Angular, node js, Java too Looking forward to discuss more about this job