Mark Celsor has been a professional web developer since 1996. His career has included technical leadership and hands-on development roles on projects for large organizations including Autodesk, AT&T, Clorox, HP, Ford, P&G, University of California, Mars, and many others. After several years working for agencies in San Francisco, Mark returned to Cincinnati to start the web development firm called Vine Street Interactive. In 2016 he left his role as Director of Technology for the national agency called Rockfish (now VML) to return to coding, building an ecology education platform for Miami University and pursuing personal projects. Mark lives with his wife and two daughters in Cincinnati.