David Duffield is the Chairman and Chief Executive Officer of Workday, a financial management and human capital management software vendor. He has an estimated net worth of $13.2 billion as of April 2019. He is the 229th richest person in the “Forbes 400” list and he was ranked 262nd in the list of World Billionaires.

Born David Albert Duffield, he earned both his bachelor’s degree in electrical engineering and MBA from Cornell University. His first big success was with PeopleSoft, a company that provided Human Resource Management Systems (HRMS), Financial Management Solutions (FMS), Supply Chain Management (SCM), Customer Relationship Management (CRM), and Enterprise Performance Management Software (EPM). He is the founder in 1987 and the former chairman of the software company. It has grown to be the world’s second-largest application software company before it was acquired by Oracle in January 2005.

Together with former PeopleSoft vice chair and head of product strategy, Aneel Bhusri, Duffield started Workday in March 2005. The company is based in Pleasanton, California and employed approximately 1,000 people in 2011. He also served as the company’s chief customer advocate aside from being its co-CEO with Bhusri.

Also known as Dave Duffield, he established two mainframe application software companies early in his career. He served as the CEO, chairman, and chief product architect at Integral Systems, the first company to offer DB2-based human resource and accounting systems. He was also the co-founder of Information Associates that specialized in applications for the higher education market. He has worked for IBM starting as the marketing representative and systems engineer.