Seth Carstens, president of Sethmatics Inc., has been developing WordPress sites since 2003, approx 10+ years. He now exclusively works on WordPress websites, themes, & plugins. Seth co-directs a local WordPress meetup in Scottsdale, AZ and has been a WordCamp Phoenix organizer since 2010.
Check out our free GPL WordPress Plugins: http://profiles.wordpress.org/sethmatics
If your looking for a WordPress specialist, look not further. http://sethmatics.com/. We also have a blog that would interest other developers.