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I retired from IBM on May 31, 2007 after 37 years with the company, where I was responsible for identifying emerging technologies and marketplace developments that are critical to the future of the IT industry. I was also responsible for our university relations office and for the IBM Academy of Technology where I served as Chairman of the Board of Governors. I led a number of IBM’s company wide initiatives including the Internet and e-business, supercomputing and Linux.

From March of 2008 until June of 2014 I was a Strategic Advisor at Citigroup, where I worked on innovation and technology initiatives including the transition to mobile digital money and payments.

Since 2005 I've been writing a weekly blog,; in April of 2012 I became a regular contributor to the Wall Street Journal’s CIO Journal.

I am Strategic Advisor on Innovation at MasterCard and at HBO; Visiting Lecturer at MIT's Sloan School of Management; Executive-in-Residence at NYU’s Center for Urban Science and Progress; and Adjunct Professor in the Innovation and Entrepreneurship Group at the Imperial College Business School. I am a member of the Board of Directors of Inno360, and CNRI and the Advisory Board of USC's Annenberg Innovation Lab.

I served on and later became co-chair of the President’s Information Technology Advisory Committee from 1997 to 2001, and was a founding member of the Computer Sciences and Telecommunications Board of the National Research Council in 1986. I am a former member of University of Chicago Board of Governors for Argonne National Laboratories, the Board of Overseers for Fermilab, and BP's Technology Advisory Council. I am a Fellow of the American Academy of Arts and Sciences as well as a Fellow of London’s Royal Society of Arts. Having been born in Cuba and come to the US at the age of 15, I was named 2001 Hispanic Engineer of the Year. I have an M.S. and Ph. D. in physics from the University of Chicago.