John Newbery is Director & Engineer at Optech, Developer at Chaincode Labs. 9 years experience designing, coding, testing, shipping and supporting scalable high-availability software. I have experience across 4 continents in managing on-site and remote technical teams, running pre-sales technical trials, being technical lead for multimillion dollar network transformation projects, presenting to high-level management and engineering teams and delivering specialist technical training. My main interests are payment channels, lightning network and micropayments. "I started Optech because if Bitcoin is to be successful, then one of the fundamental challenges facing Bitcoin services and businesses will be how to maximize customer utility by making efficient use of the blockchain. Helping Bitcoin ecosystem players adopt scaling techniques and technologies is one of the most effective ways we can help Bitcoin scale today."