From 1996 to 2000, Joshi was an associate attorney at Latham & Watkins. From 2000 to 2002, she was an associate at Morvillo Abramowitz Grand Iason & Anello PC. From 2002 to 2008, Joshi served as inspector general of the New York City Department of Correction. She was also the deputy director of the Civilian Complaint Review Board. In September 2011, Joshi joined the New York City Taxi and Limousine Commission, serving as deputy commissioner of legal affairs. She was later nominated as CEO and commission chair by Bill de Blasio on March 8, 2014,[4] and confirmed on April 10, 2014.[5] As TLC chief, Joshi presided over the devastation of the taxi industry as medallion prices fell from over $1 million to $175,000 or even lower. In 2019, Joshi was a visiting scholar at the Rudin Center for Transportation Policy & Management. Joshi left the Taxi and Limousine Commission in March 2019,[6] and from 2020 to 2021, she was General Manager for the New York Office at Sam Schwartz Engineering.[7][8]
In January 2021, Joshi joined the Federal Motor Carrier Safety Administration as deputy and acting administrator. On April 14, 2021, she was nominated to serve as administrator of the organization.[3] On April 15, 2021, her nomination was sent to the Senate.[9] Joshi withdrew her nomination after being appointed as a deputy mayor of New York City in December 2021.