The U.S. Department of the Treasury seeks a Senior Advisor for its Revenue Administration Program under a personal services contract, requiring international travel to developing and transitional countries worldwide. The role involves conducting assessments, monitoring work plans, and coordinating with foreign tax administrations and U.S. Embassies to build capacity in tax and customs. Candidates must be U.S. citizens with senior-level expertise in public revenue administration and project management experience. The salary is negotiated up to the Senior Executive Service EX-III hourly equivalent, starting at $81.11 to $100.38 per hour, with overseas benefits as allowed. The announcement is open until July 31, 2026, and applicants must obtain a Secret security clearance and State Department medical clearance for worldwide travel.