David is a J2ME/J2EE software engineer with solid experience developing mobile workforce, document management, and data warehousing applications. He’s worked extensively in security, including design of a Single Sign-On (SSO) system and a web-based digital contract signing application. Among David's fortes is an ability to profile and optimize enterprise OO applications, reducing server overhead and memory usage while increasing transaction throughput. David recently completed a Universe-database driver that provides a 250% performance enhancement over IBM's native API.