· Distinguished Scientist, Apple2025–2025
· Principal Scientist, Google DeepMind2025–
· Machine Learning Research Scientist, Apple2021–2025
· Sr. Vice President, Head Of Deep Learning, The D. E. Shaw Group2020–2021
· Staff Scientist, Google Brain2017–2020
· Distinguished Research Scientist, NVIDIA2017–2017
· Senior Research Scientist, Google Brain2014–2017
· A, University of Toronto2008–2014
· Sr. Research Scientist III, IV, Pacific Northwest National Laboratory2004–2008
· Group Leader, Bioinformatics Dept., Caprion Proteomics2001–2004