Tim Zwier joined Sandia National Laboratories Combustion Research Facility (CRF) in January 2020 after spending much of his independent research career in academia. Zwier had served as a Ph.D. research advisor for more than 40 graduate students and about a dozen post-doctoral research associates. His research interests span the areas of large-molecule spectroscopy and chemical dynamics. With other Gas Phase Chemical Physics program (GPCP) staff at Sandia, he is developing and using modern tools of gas-phase chemical physics to probe the spectroscopy and dynamics of molecules that can undergo conformational isomerization, structural isomerization, and/or chemical reaction on complex potential energy surfaces.