David Heinemeier Hansson

David Heinemeier Hansson (DHH) is a Danish programmer and entrepreneur best known for creating the Ruby on Rails web application framework. He developed Rails while working on Basecamp, the project-management product built by the company 37signals, which later became Basecamp. Hansson is a co-founder of Basecamp and has been a prominent voice in software development, advocating for pragmatic programming and developer-friendly tools. He has written and spoken widely about building web applications, product design, and company culture. Through Rails and his work at Basecamp, he has influenced modern web development and the way small teams build and ship software.