David Walker has won the 2015 LITA/Library Hi Tech Award for Outstanding Communication in Library and Information Technology.
Here's an excerpt from the announcement:
Walker is being recognized for his dedication and commitment in developing open source library portal application Xerxes over the past decade. Originally designed as an improved interface to the Ex Libris Metalib federated search system in 2004, Xerxes now supports a variety of back-end search engines, including commercial library discovery systems, such as Primo, EDS, Summon, non-cost web service (EBSCO Integration Toolkit, Worldcat API), and other search engines (Solr, Google Appliance). Through this effort, Walker has worked with a variety of vendors to develop and test their application programming interfaces, and has been recognized by OCLC and Ex Libris for innovative uses of their services. In 2007 Walker released the system under an open source license, and today, Xerxes platform is implemented by over 40 institutions around the globe, with some also contributing code back to the project.