Harold Madsen directs the APIs at Ancestry.com, the world's largest online family history resource, with the mission to help everyone discover, preserve, and share their family histories. He has more than 20 years of experience in engineering and management and thrives on creating clean, easy to use, and accessible APIs. He manages both internal and external APIs at Ancestry.com. His most recent endeavor involves leading the company's effort to redesign the internal APIs, based on high internal standards and a unified presentation layer across all teams, stacks, and departments. Harold enjoys hiking and camping in his free time and has hiked 10 mountain peaks and climbed one pyramid in Egypt. He is also distantly related to John Lackland, King of England of the Robin Hood legends.