Timothy Hauser graduated from Mt. Lebanon High School near Pittsburgh, Pennsylvania in 1966. He then attended Georgetown University, earning a master's degree in international relations in 1972. He did additional postgraduate work at the Johns Hopkins University Paul H. Nitze School of Advanced International Studies, in Washington, D.C. and in Bologna, Italy. He was fluent in both Italian and French.
Hauser served in the United States Army as a Captain in the 1970s. He went to work as an economist with the Bureau of Labor Statistics in 1971. He moved to the United States Department of Commerce on the staff of the assistant secretary for policy before 1980. In 1986, he was detailed to the White House for a year as deputy executive secretary of the Economic Policy Council, after which he returned to the Commerce Department as deputy assistant secretary of planning.
In 1991, he became the first career civil servant to be appointed deputy undersecretary of the Commerce Department. He earned the Presidential Rank Award of Distinguished Executive twice, in 1992 and 2003. The International Trade Administration has established the Timothy J. Hauser Award in his honour.
- United States Council for International Business (September 2005). "Senior Commerce Official’s Death Mourned". USCIB News, Vol. XXVI, No. 7.
- Al Lowe (September 15, 2005). "Timothy J. Hauser / Held federal international trade position". Pittsburgh Post-Gazette.
- "Timothy J. Hauser, Commerce Deputy Undersecretary". The Washington Post. August 25, 2005. "In 1991, Mr. Hauser became the first career civil servant appointed deputy undersecretary in Commerce. He often filled in as acting undersecretary of international trade. He managed the Commerce Department's participation in negotiations at the World Trade Organization and trade negotiations with Japan, Canada, the European Union and other governments. He managed the day-to-day operations of the 2,500-person, $410 million International Trade Administration."
- 2003 Distinguished Executive Awards, Department of Commerce. "Timothy Hauser". Office of Personnel Management.
- International Trade Administration. "Timothy J. Hauser Award".