He will lead a business sector that supports the Environmental Protection Agency, the National Science Foundation and the Department of Transportation and other regulatory federal entities.
Hadley returned to the company last year after more than a decade. His tenure as the director of CGI-AMS' environmental health and safety information technology practice ended in 2006. CGI-AMS, a CGI Group subsidiary, was later renamed to CGI Inc.
He led sales, financial management and other functions of the EHS IT practice from 2004 to 2006.