NEW YORK CITY-In a sign of its continued growth, Kushner Cos. announced Monday it created the new position of managing director, real estate development, and hired Johanna Greenbaum, a member of Mayor Michael Bloomberg's administration, to fill the role.

In her new role, Greenbaum will work closely with Jared Kushner, CEO of Kushner Companies, on development of projects across New York City, including 200 Lafayette St. and the Puck Building, according to the announcement. She served in the Bloomberg administration for four years as counsel and deputy chief of staff to Robert Steel, deputy mayor for economic development; and assistant counsel to Ed Skyler, deputy mayor for operations.

In her time at City Hall, Greenbaum led several real estate efforts, including the acquisition of the third section of the High Line (she sat on the board of directors of friends of the High Line), neighborhood rezonings, disposition of Metropolitan Transportation Authority/city-owned properties, and the development and entitlement of sites throughout the city. She also helped implement a variety of programs including a comprehensive affordable housing strategy; the development of the “microunit,” a small housing type; and the greater greener buildings plan.