I've been a product engineer for over 20 years, working across all platforms: web, mobile, and desktop; and across many languages, including: Java, PHP, Ruby, C++, Swift, Javascript, and more.
I've worked with more than 10 startups and founded 5, including RescueTime, which went through Y Combinator in 2008. I also helped start Madrona Venture Labs, the incubation arm of investment firm Madrona Venture Group.