Fischbach was a junior fellow in the Department of Molecular Biology at Massachusetts General Hospital (2007-2009) before joining the faculty of the University of California, San Francisco in 2009.
Fischbach is currently a member of the Board of Directors of Achaogen,[REF] the scientific advisory boards of NGM Biopharmaceuticals[REF] and Symbiota,[REF] and a co-founder of Revolution Medicines [REF].