The Depository Trust & Clearing Corp. has named Bridget E. O’Connor managing director and chief technology officer.

The information technology role requires O’Connor to oversee core networking, processing and messaging systems, distributed systems, business continuity and post-trade processing capacity, which exceeds 850 million transactions in a single day. That’s more than three times the highest peak volumes on the 50 largest stock markets in the U.S.

O’Connor, who assumes the position on Aug. 31, will report to Chief Operating Officer and President William Aimetti.

“Bridget’s leadership in developing and maintaining high-quality infrastructure systems and business continuity programs on Wall Street is both well known and highly regarded,” Aimetti said.

“As our customers increasingly are headquartered in Europe as well as the U.S., we face new challenges both in extending the reliability and low-cost infrastructure to new customer segments and in supporting new asset classes of financial products worldwide,” he added. “Bridget brings the global experience and record of success that we believe will continue to differentiate DTCC in the future."

O’Connor comes to the firm from Lehman Brothers, where she was chief information officer and global head for business continuity, overseeing 6,500 people in four major global locations. She joined the firm in 1997 as senior vice president, global head of e-commerce technology. Before that, she was an applications architect for AT&T Bell Laboratories.

O’Connor replaces Vincent Hilly, who will retire in July 2010 but collaborate with his replacement and work on strategic initiatives before then.

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