Hi, I'm David. I've been writing code professionally for over 15 years, most of that time as a freelance consultant, instructor, and community organizer. I've worked on some big-scale applications but mostly small start-ups and SMB back-office applications. You should contact me if you or your team is stuck on a hard problem, a tricky UI, or a complex scaling challenge. I'm happy to offer advice and direction or answer specific questions on Quora or Stack Overflow.