Andrej
Software engineer and Blockchain consultant. Main fields in his Blockchain development are Ethereum and writing and testing smart contracts. Andrej has worked on various Mobile/Web Blockchain based apps and has created one cryptocurrency. Beside that, he writes Blockchain Educational columns for Blockonomi and his own Medium blog, and hosts online Blockchain consultation sessions.
Blockchain stacks: Ethereum, Solidity, IPFS, ERC-20 and ERC-721 tokens, Embark, Hyperledger Fabric
Tech stacks: Node.js, React/React Native, Angular, Docker, Socket.io, Typescript