Dan Thielen is a highly skilled Design Engineer with a strong background in mechanical engineering, currently employed at Type One Energy since September 2024. Prior experience includes serving as a Sr. Mechanical Engineer at MS Technology, Inc., where work involved mechanical engineering contracting for the nuclear industry and systems engineering support for TRISO-X on the TerraPower/GE Natrium Reactor Project. Dan's expertise also encompasses directed energy systems from a role at Booz Allen Hamilton/HELworks, focusing on thermal systems and next-generation cooling technologies. Previous positions at MasterCraft Boat Company demonstrated proficiency in fluid systems and mechanical assemblies across multiple boat brands, along with early experience as a design engineering intern. Educationally, Dan holds a Bachelor's degree in Mechanical Engineering from Iowa State University, completed in 2017.