All Job Posting Locations: Milpitas, California, United States of America, Mountain View, California, United States of America, Palo Alto, California, United States, San Francisco, California, United States of America, San Jose, California, United States of America, South San Francisco, California, United States of America, US356 CA Santa Clara - 5303 Betsy Ross Drive. Prototype and develop proof of concept designs, disease models and test methods of testing these concepts in a simulated environment and develop new product designs based on the defined user needs.