Commissioner Greer J. Gillis

Commissioner Greer J. Gillis

Professional Biography


Greer Johnson Gillis is a senior professional engineer and project manager with over 20 years of experience. Her expertise is in project and program management, with the experience of leading large-scale infrastructure projects from inception to completion. Her background is in transportation (traffic operations, traffic simulation, and transportation planning) having led several projects with regional jurisdictions on the improvement of traffic operations. She is a certified Professional Engineer in Washington, DC and Virginia and is a certified Lean Six Sigma Black Belt.

An experienced administrator and organizational leader, Ms. Gillis served as the Director for the District of Columbia Department of General Services (DGS). In this role, Ms. Gillis oversaw the agency responsible for managing capital improvement and construction programs for a variety of District government agencies, including DC Public Schools, as well as executing real property acquisitions by purchase or lease, disposing of property through sale, lease or other authorized method, managing space in buildings and adjacent areas, and providing building management services for facilities owned or operated by the District. She focused on sustainability initiatives across the agency’s efforts specifically championing building energy performance standards for the government portfolio and implemented agreements to reduce greenhouse gases through efforts on installing green roofs and solar installations across government buildings. She led the agency in the delivery of three Short-Term Family Housing projects and the closure of DC General Hospital Homeless Shelter.

Before accepting this role, Ms. Gillis served as the Deputy Director for the District of Columbia Department of Transportation, commonly known as DDOT. Prior to this role, she served as the Area Manager for the Washington, DC office of Parsons Brinckerhoff, where she also served as the President of the DC Corporation of Parsons Brinckerhoff, P.C., and as Assistant Vice President of the parent company, Parsons Brinckerhoff Inc.

Prior her time in the private sector, Ms. Gillis served as the Deputy Chief Engineer for the District of Columbia Department of Transportation (DDOT). In this role, she oversaw infrastructure projects pertaining to the Anacostia Waterfront Initiative (AWI) program, Stormwater Management Branch, Safety Standards and Quality Control Division, ITS Division, and Citywide Special Projects. At DDOT, she oversaw the $300M 11th Street Bridges Design-Build Phase I Project, and served as an advisor to the Nationals Ballpark Transportation Operations Plan Task Force. In 2008, she was appointed by the Interim Director of DDOT to serve as the transportation lead for 2009 Presidential Inauguration, where she led the multi-administration team of DDOT in all phases of transportation planning and operations activities for the Inauguration, and represented DDOT with federal and city stakeholders for the Inauguration. She also served as the Acting Chief Engineer for DDOT from October 2009 to March 2010.

In 2014, Ms. Gillis was honored by President Obama and U.S. Secretary of Transportation Anthony Foxx as a White House Champion of Change: Transportation Ladders of Opportunity. She was honored for her efforts in diversity, including the mentoring of and championing the participation of women and minorities in the engineering industry. Throughout her career, she has served as a role model and advocate for building a diverse transportation workforce.