Allen Rohner is the co-founder and CTO of Griffin. He is also a founder of unicorn code verification platform CircleCI. He has developed critical products and infrastructure for leading fintech companies, including Funding Circle. Allen has been a core Clojure contributor since the earliest days of the language. Software written by Allen has been downloaded over 200,000 times. He wrote and published Learning ClojureScript with co-founder David Jarvis in 2016.