I have trained alote of people on blockchain technologies and worked as a Js/Blockchain instructor for over a year and i had participated in a couple of blockchain talks and as a tech lead i have managed over 10 developpers as a tech lead in our startup and trained them on blockchain technologies hyperledger fabric, composer , convector, etheruem, solidity , etheruem oracle and i have written two articles on the etheruem blockchain and built a few tools for it.