Blockchain developer with years of experience in coding, and solid expertise in Bitcoin-related development and Ethereum token deployment. I can write a smart contract for your project (for an ICO or a DAPP) on Ethereum, also I develop scripts for deploying, upgrading and automatically testing this contract. I can integrate the Ethereum contract with back-end and front-end of your platform. Also, I can develop a node client for any currency, with the capability to create and monitor multiple accounts or make payments. Also, you can hire me if you need a payment solution or an integration with a crypto exchange. BitcoinAPI integration (Coinbase, Bittrex, Bitfinex) ICO site development (includes a Dashboard with analytics) Smart Contract, written on Solidity (ERC20) BTC and ETH custom wallet development DApp development, using web3.js 0x protocol