Joseph Jarrin was appointed Deputy Commissioner for Administration on July 16, 2007, and later designated Deputy Commissioner for Finance, Contracting, and Program Management on November 5, 2007. In this position, he serves as the Department's Chief Financial Officer, overseeing the offices of Financial Management and Analysis, Grants Administration, Capital Program Management, Fiscal Affairs, and the Agency's Chief Contracting Officer (ACCO).

Before joining DOT, Mr. Jarrin served for ten and a half years in the Mayor's Office of Management and Budget (OMB). From 2003 to 2007, Mr. Jarrin was Assistant Director at OMB for Fire, Parks, and Sanitation, managing the taskforce responsible for the oversight of a multi-billion dollar portfolio of city services including waste collection and disposal, emergency response, and public recreation. He worked very closely with various city agencies on major initiatives such as the Long-Term Solid Waste Management Plan, the Integration of 911 Call-Taking and Dispatch Operations, and several park expansion and economic development programs. From 1999 to 2003, Mr. Jarrin was Transportation Unit Head at OMB, overseeing the budgets of DOT, the Taxi and Limousine Commission (TLC), as well as City subsidies to the Metropolitan Transportation Authority (MTA) and private bus operators. From 1997 to 1999, he was an analyst at OMB focusing on DOT and the MTA. In 1996, for eight months Mr. Jarrin served as a graduate intern in DOT's Division of Bridges as well as the DOT Budget and Capital Program Management office.

Prior to joining City government, Mr. Jarrin worked as the International Sales and Circulation Supervisor for Thomas Publishing Company. He holds a Bachelor's degree in Economics from the University of California, Santa Cruz and a Master's in Public Administration from New York University's Wagner School of Public Service.