John has been a software developer for longer than he cares to remember. He learned to program on a Commodore PET back in the 1970s.
He lives in the heart of the Peak District and has spent the last 20 years working for various companies in and around Sheffield, working on systems for Marine Navigation, DVD production, and Educational Administration. He also teaches part-time at the Department of Computer Science at The University of Sheffield.
He regularly attends and occasionally presents at the Sheffield .NET User Group and at (def_shef), the Sheffield Functional Programming interest group.