johnnysuo

Proficient in solidiity smart contract development, master truffle framework, proficient in using metaMask, ganache-cli, genth, remix and other clients, proficient in using solidiity to write smart contract test cases, gas optimization, security optimization and deployment, proficient in using web3.js API, proficient in using Node .js, understand EVM.
Understand BTC, the underlying principle of ETH, the principle of POW algorithm, the Merkel Patricia tree, the mining mechanism and the difference between BTC and ETH, understand ETH2.POS shard chain beacon chain, etc., Polkadot palkadot.
Also has many years of rich Android development experience.