I have 40 years of experience and specialize in the field of financial markets with specific knowledge in the areas of trading, risk management and technology. I have published on such topics as risk in high frequency and algorithmic trading, US market structure, and trading technology and systems. I have testified on software patents, trading methodologies and financial services practices. In addition to 35 years of international financial services systems line management, I have served as a professor of graduate students, and also as a trainer of corporate clients.