Mari-Ellen Testa is currently the Chief Growth Officer at OPTiMO Information Technology, a position held since 2024. Previously, they served as a Director at Guidehouse from 2018 to 2023 and held the role of Director at PwC from 2012 to 2018. Earlier in their career, Mari-Ellen was a Principal at Booz Allen Hamilton from 1998 to 2012 and the Director of Finance at the United States Holocaust Memorial Museum from 1987 to 1998.
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