Daniel Perez, PhD student in London. I love both programming and natural languages. Daniel Perez is a software engineer and researcher based in London. He has been working on backend systems in various companies and he particularly enjoy writing in functional programming languages. More recently, he has been working on diverse machine learning tasks, mostly related to natural language processing. He is currently a PhD student at Imperial College London, supervised by professor Ben Livshits. His current research theme is about how to secure distributed ledgers and their ecosystem. He focus mostly on using programming language techniques to improve the security of blockchains' virtual machines, as well as the applications running on top of them. Before that, he received my Master's in Computer Science from The University of Tokyo under the supervision of professor Shigeru Chiba, during which he worked on applying machine learning techniques to programming languages.