Jaime W. Ellertson

JAIME W. ELLERTSON, Chief Executive Officer of S1 Corporation, joined
the company in November 2000 and has led the organization to achieve
record revenues, EBITDA profitability and global success with its
Enterprise strategy. He has more than 20 years of experience leading
high-growth software companies in demanding markets and managing their
corporate operations toward long-term success. Prior to joining S1, Mr.
Ellertson served as Executive Vice President and General Manager of
worldwide strategic operations for BroadVision. Mr. Ellertson’s other
successes include his role as Chairman and CEO of Interleaf where in
less than three years, he grew the company from a mature provider of
publishing software into the leading provider of XML capabilities to the
financial, technology and manufacturing market segments. Additional
Chief Executive assignments for Mr. Ellertson include founder and CEO of
Purview Technologies, Inc., an Internet software company that
specialized in network monitoring and management technology; CEO of
Tartan, Inc., a leading digital signal processor software provider; and,
founder and CEO of Openware Technologies, a software tools and services
firm. Throughout his various roles, Mr. Ellertson has consistently
demonstrated his ability to focus organizations on executing their
corporate and product strategies to drive increased revenue and superior
returns for shareholders.