Initially being a developer and product manager, but I have a good head for business and don't let my tech side create problems like feature creep. The startups I've built in the past were rather complex systems that I was able to wrangle either myself or with a small team.
That said, I'm a programmer who longs to do business! Also, public speaking is something I love and have no problem presenting to groups both large and small.
Notable past projects include a personal finance and comparison shopping webapp, social media analytics platform and a material selection tool for home builders.