S4 Technology, Inc. is a Georgia corporation lead by Kesha Williams, a software developer, with over 20 years experience specializing in web application development using Java technologies and frameworks. Her expertise includes web design, programming, systems analysis and design, and technical project management. She has served as Java consultant and corporate trainer to major corporations in the airline, medical, and restaurant industries. She has also worked with the U.S. Air Force and other government agencies, and enjoys teaching several online courses, such as, Java, Object-Oriented Analysis & Design, Design Patterns in Java, Hibernate, etc. for the University of California. In her spare time, she enjoys reading science fiction novels and writing articles for Java Code Geeks.