This is the kind of job that doesn't open up very often, so if you are at all interested, take advantage of the opportunity:
Assistant United States Trade Representative for Monitoring and Enforcement
Duties
Manages and coordinates USTR legal and interagency legal resources in connection with U.S. representation in international trade disputes at the World Trade Organization (WTO) and under U.S. bilateral and regional free trade agreements (FTAs). Advises and trains staff attorneys on all aspects of WTO dispute settlement, including substantive legal issues, procedural matters, presentational style and litigation tactics. Develops and refines legal arguments and strategies, ensuring that attorneys properly consider cross-cutting issues. Reviews and clears legal briefs and other submissions. Develops strategies for successful removal of international trade barriers and resolution of disputes.
Coordinates interagency consultation on recommendations to pursue international trade litigation and interagency development of U.S. policy relating to international dispute settlement, including U.S. negotiating positions on amending WTO dispute settlement rules and drafting of FTA dispute settlement provisions. Chairs Trade Policy Staff Committee Compliance Task Force, which serves as a forum for interagency information-exchange on current and potential international trade disputes. Works closely with the staffs of relevant Congressional committees on litigation priorities and legislative implementation of dispute settlement results. Works closely with USTR and interagency colleagues to ensure effective enforcement of international trade obligations, both domestically and internationally, including through implementation actions consistent with U.S. policies.
More details at the link.