Creator of the Contributor Covenant and the Post-Meritocracy Manifesto, Ehmke was a leading advocate for codes of conduct in open source projects and communities. She founded the Organization for Ethical Source and authored We Just Build Hammers: Stories from the Past, Present, and Future of Responsible Tech, published by Apress in 2025.
Ehmke began her career as a web developer in 1994 and worked across a wide range of industries, including engineering, consulting, education, advertising, healthcare, and software development infrastructure. She is recognized for her work in Ruby, and in 2016 received the Ruby Hero award at RailsConf, a conference for Ruby on Rails developers.