Laurence Field is a CERN staff member who has been actively involved in the commissioning of the Worldwide LHC Computing Grid (WLCG). Over the past ten years he has participated in a number of European projects including the European DataGrid and Enabling Grids for E-science, where he made significant contributions in the area of Grid information systems and interoperations. He is currently the Infrastructure Area Leader for the European Middleware Initiative (covering Information Systems, Messaging Technologies, Accounting and Service Monitoring) and the IT&DM Topic leader for the CRISP project.