Previously, he worked as an Application Catalyst at Metaweb Technologies Inc. tasked to help enabling a development ecosystem around Freebase as a platform. Metaweb was acquired by Google in 2010.
He is also known for his open source activities within the Apache Software Foundation (ASF) of which he’s been a member since 1999 and a director between 2003 and 2005. There, he’s mostly known for having started the Apache Cocoon project and, before that, for having being a release manager for Apache JServ (a servlet container now retired, precursor of Apache Tomcat). But some of his code can be found in several open source projects.
He has also participated in several expert groups within the Java Community Process, such as the Servlet API, the Java XML API and the Java Content Repository API.
His research interests include data integration, data mining and data visualization, virtual communities dynamics, software usability, user interface design and software engineering.