Kristian Karl has 20 years of experience in the testing business, and has during that time been given the chance to work in Telecom, Finance, Government and start-ups. Even though Kristian has done White Box Testing, Functional Testing, System and Integration Testing, Acceptance Testing, his heart beats strongest for Test Automation using Model-based Testing and Performance Testing. Founder of graphwalker.org Test manager at Spotify since 2010.