All Services Programming & Development BLOCKCHAIN, SMART CONTRACT DEV. SOLIDITY $5/hr · Starting at $25 I'm a system information engineer and I have training certification in blockchain technology and skills in developing smart contracts in solidity programming language. Also have experience with ethereum mining. About $5/hr · Ongoing Download Resume I'm a system information engineer and I have training certification in blockchain technology and skills in developing smart contracts in solidity programming language. Also have experience with ethereum mining. Skills & Expertise BlockchainERC20Smart Contracts 0 Reviews This Freelancer has not received any feedback.