Alfredo Serafini is a freelance software consultant, currently living in Rome, Italy. He has a mixed background. He has a bachelor's degree in Computer Science Engineering (2003, with a thesis on Music Information Retrieval), and he has completed a professional master's course in Sound Engineering (2007, with a thesis on gestural interface to MAX/MSP platform). From 2003 to 2006, he had been involved as a consultant and developer at Artificial Intelligence Research at Tor Vergata (ART) group. During this experience, he got his first chance to play with the Lucene library. Since then he has been working as a freelancer, alternating between working as a teacher of programming languages, a mentor for small companies on topics like Information Retrieval and Linked Data, and (not surprisingly) as a software engineer. He is currently a Linked Open Data enthusiast. He has also had a lot of interaction with the Scala language as well as graph and network databases. You can find more information about his activities on his website, titled designed to be unfinished, at http://www.seralf.it/.