There are a lot of challenges in providing trading tools to fuel 120 million daily transactions for 6,000 users in 69 global venues, at ever-increasing speeds. As head of electronic trading at Goldman Sachs, Greg Tusar is charged with making trading technology function as competitively as any other product or service provided by Goldman Sachs. Trading technology has become a key differentiator, says Tusar, who explains to Institutional Investor Senior Writer Frances Denmark how it works.

This is the third in our four-part video series highlighting the Trading Technology 30, Institutional Investor ’s ranking of the leading system architects and innovators who keep markets humming, accurately and dependably, at breakneck speeds.

In our previous two videos, Institutional Investor Senior Writer Julie Segal spoke to Ben Sylvester, head of J.P. Morgan Asset Management’s U.S. equity trading group and II Senior Editor Jay Akasie spoke to Raymond Tierney, president and CEO of Bloomberg Tradebook.