PNNL

Tim Doster is a senior data scientist in the Applied AI Systems group in the National Security Directorate at Pacific Northwest National Laboratory’s Seattle campus. He received a PhD in applied mathematics and scientific computing from the University of Maryland, College Park, in 2014. From 2014 to 2016, he was a Jerome and Isabella Karle Distinguished Scholar Fellow before becoming a permanent research scientist in the Applied Optics Division with the U.S. Naval Research Laboratory. During his time with the U.S. Naval Research Laboratory, he won the prestigious Department of Defense Laboratory University Collaboration Initiative grant. 

Since joining PNNL in 2018, Tim has shaped PNNL’s technical capabilities in AI assurance and geospatial intelligence. Rather than simply training models on mission data, he translates critical national security challenges into viable technical directions to develop data-driven solutions within mission systems.  Tim is a capability steward and principal investigator in the areas of safety and security of AI systems, zero-shot learning, and hyperspectral sensing. In addition to his technical project leadership, Tim is an active leader in the scientific and government research spheres. He is a co-founder of the topology, algebra, and geometry in data science (TAG:DS) research community and was the co-chair of the government conference on AI assurance held in 2025.   

• PhD in applied mathematics and scientific computing, University of Maryland, College Park 
• BS in computational mathematics, Rochester Institute of Technology