Software Engineer and Quantitative Analyst @ Callisto Asset Management was launched as an Algorithmic Investment Manager in April 2014 (I was one of the first technical hires while the project was still in stealth-mode). I worked on developing the full stack of algorithmic trading systems (Clojure, Python, C++) all the way from data integrations to execution, with a particular focus on portfolio construction. From July 2013 to Present (2 years 4 months) London, United KingdomSoftware Engineer @ SwiftKey was the world leader Android keyboard replacement app and was the most-downloaded paid app on the Android market for over two years. I worked mostly on R&D for new NLP projects, user data analysis and information retrieval. I mostly worked in Clojure, Ruby, and Python From June 2011 to July 2013 (2 years 2 months) London, United KingdomSummer Software Intern @ Metaswitch Networks is the world-leader in the production of Software-based telephone exchanges (Softswitches). I was working mainly in Python and Ruby to produce a framework which could reproduce bugs recorded in customer Softswitches by feeding all the protocol flows (SIP, ISUP etc.) into a test softswitch. From June 2010 to October 2010 (5 months) London, United KingdomSummer Intern @ From June 2009 to September 2009 (4 months)

MA, Mathematics and Philosophy, 2.1 @ University of Cambridge From 2007 to 2011 David Williams is skilled in: Python, MySQL, Clojure, Software Engineering, MongoDB, Web Development, Machine Learning, Algorithms