Ruvalcaba, Zak: - Zak Ruvalcaba has been researching, designing, and developing for the web since 1995. As a full-time web developer, hes developed web applications for companies like Gateway, HP, Toshiba, IBM, Intuit, Peachtree, Dell, and Microsoft. As a full-time instructor, hes headed up the Front-End Web Developer Certificate Program in the San Diego Community College District, where hes responsible for running the program and developing the curriculum.