Diederik is a tax professional with more than 20 years of experience in Global Mobility and International Expatriate Tax matters. Past employers include IBM, and PricewaterhouseCoopers.

He brings experience design and implementation in global mobility programs, policies and processes for long- and short-term assignments, commuters and business travelers. He is a trusted advisor to key stakeholders in Corporate Tax, Legal, Human Resources and Business Units related to global mobility and cross-border employment tax topics; and has subject matter expertise in international tax law compliance and planning for compensation packages, deferred compensation, equity awards and other compensation items.

He is a graduate of the University of Amsterdam, where he earned a Master's Degree in Fiscal Economics with majors in personal tax, corporate income tax, international tax, business economics and mathematics. Diederik is an IRS enrolled agent as well as a certified equity professional.