Mr. Paul Gradl is a Senior Propulsion Engineer at the NASA Marshall Space Flight Center (MSFC) in the Propulsion Division, Engine Components Development and Technology Branch. As a subject matter expert (SME) in liquid nozzle design, he leads manufacturing, design, development and testing of liquid rocket engine combustion chambers, nozzles, and nozzle extensions and supported a variety of development and flight programs over the last 16 years. Mr. Gradl serves as principal investigator and leads advanced technology development on several projects for additive manufacturing of combustion devices. He authored and co-authored over 30 conference papers and journal articles; holds three patents in his field; and taught several classes in advanced manufacturing and additive manufacturing for liquid rocket engine components. Mr. Gradl holds a Bachelor of Science in Mechanical Engineering and a MBA from Gannon University, and a Master of Science in Engineering from the University of Alabama Huntsville (UAH). Gradl is the recipient of numerous NASA and industry awards including two NASA Exceptional Achievement Medals, NASA Exceptional Service Medal, MSFC Research and Technology, NASA Technology Transfer, Engineering Partnership Award, and NASA Space Flight Honoree to name a few. Mr. Gradl is a senior member of AIAA, member of ASME Propulsion Technical Committee for additive manufacturing, and actively involved in JANNAF as a session chair for component technology and development.