My name is Zak Ruvalcaba and I have been researching, designing, and developing for the Web since 1995. I specialize in web and mobile web site and application development focusing on responsive user interface design, user experience, and usable presentation. I hold a Bachelor's degree from San Diego State University and a Master of Science in Instructional Technology from National University in San Diego.

My skill set includes numerous front-end and back-end authoring, scripting, and programming languages, technologies, and tools. Many of which I’ve written about or currently teach at the community college level. I am a Microsoft Certified Application Developer for .NET (MCAD) and a Microsoft Certified Solutions Developer for .NET (MCSD).

I have been teaching at the community college level for over 19 years at several community colleges including the San Diego Community College District, Mt. San Jacinto, and Palomar College. That experience has landed me the position of Associate Professor for the Front-End Web Developer Certificate Program at the San Diego Community College District's Continuing Education North City campus. Aside from my teaching duties I am also a Web Application Developer at MiraCosta College.

I have written several books on Web Development, including the Dreamweaver Unleashed series on Sam's Publishing, the Build Your Own ASP.NET Website Using C# and VB series on SitePoint Press, Beginning Expression Web by Wrox Press, Murach's HTML5 and CSS3 by Mike Murach & Associates, Inc., Murach's JavaScript and jQuery by Mike Murach & Associates, Inc., and Murach's Dreamweaver CC 2014 also by Mike Murach & Associates, Inc.