From the USAJOBS site:

“The incumbent serves as a Policy Analyst (Trade) in the Office of China Affairs, at the Office of the U.S. Trade Representative.  The incumbent formulates and develops U.S. policy positions on international trade and investment issues, as they relate to China.  The incumbent also initiates the development of trade policy regarding China for consideration by higher level policy makers in the interagency trade policy making process.  The incumbent participates in the planning and formulation of negotiating positions and tactics to be taken by the U.S. government on a variety of trade issues during negotiations.  The incumbent prepares Congressional testimony, briefing materials, summary statements and speeches for the U.S. Trade Representative (USTR), both Deputy USTRs, the Assistant USTRs and other senior executives, as appropriate, on major trade issues.  The incumbent promptly analyzes information to explain and defend the Administration’s trade policies to foreign governments, the public, the press, and the Congress.  Extensive experience in leading negotiations on trade or international economic matters with China is required.  Proficiency in speaking/reading the Mandarin language is strongly desired.  The position requires domestic and foreign travel.”

For more information and application, please visit USAJOBS.