Aziz is a Harvard Law School graduate and is a former Deputy Commissioner of Income Tax, which he held for almost 12 years. At Harvard Law School, in addition to his Master of Laws (LLM), Aziz completed a postgraduate certificate program in international taxation and participated in three extensive workshops on tax law formulation, international transfer pricing, and financial derivatives. Recognizing his skill, experience and interest in public service, the government has appointed him on Boards of Provatisation Commission and Board of Investment. In addition to his civil service experience, Aziz has rich exposure of working with different companies in Pakistan and abroad including Tax Analysts, a Virginia, USA based tax law publishing company; Engro Chemical Pakistan Limited (formerly Exxon Pakistan); Pakistan International Airlines; Zarai Taraqiati Bank, and a brief stint at the World Bank in Washington, DC. Aziz has advised numerous international and national clients on taxation, financial and corporate matters and has represented in mediation or litigation of controversies. His experience with Civil Service has exposed him to larger national and multinational corporations, whom he continues to serve as a law practitioner and advisor. Aziz has advised governments and institutions on legislative process and drafting on various issues especially business, investment and international law. Currently he is working as Senior Legislative Drafting Expert with British Council to assist the National Assembly Secretariat in developing its legislative drafting capacity. Aziz is a regular contributor and correspondent to the weekly Tax Notes International, and Worldwide tax Daily, USA based publications of global acclaim. He has extensively written on the legal issues for the prestigious international professional journals. Aziz is also a professionally trained mediator accredited internationally by the Centre for Effective Dispute Resolution, UK. He is part of an IFC-managed small core group of mediators to pilot modern commercial mediations in Pakistan. His areas of interest in practice, writing, and teaching include public policy research and advisory, fiscal laws, international taxation, contracts, and corporate matters.