Dan Smoot, most recently CEO of Riverbed, will continue to support the company during the transition period, Riverbed said Tuesday.
Donatelli previously served as lead independent director at MarkLogic, a portfolio company of Vector focused on providing data management and data integration platforms.
He brings to the role leadership experience at tech companies, including Oracle (NYSE: ORCL), Hewlett-Packard and EMC.
John Theler, former chief financial officer at Riverbed, has rejoined the company as CFO and brings to the role over two decades of experience as a financial professional at several tech businesses.
He held similar positions at MarkLogic and Avetta and started his career at Ernst & Young.
Riverbed provides unified observability and acceleration platforms designed to help public sector organizations advance digital transformation, improve IT security and user experiences, support hybrid workforces and meet other missions.