Skaggs was made interim CFO last month. He has been with the company since 2010.
Samant was CFO at EnterpriseDB.
Zwick had been CFO since 2012. Controller Eric Carlson has been tapped interim principal financial officer and interim principal accounting officer. The company is searching for a permanent CFO.
Burritt, who will also be executive vice president, was at Caterpillar for 32 years and left as CFO in 2010.
Patryn, a former chief financial controller, was tapped interim CFO in May.
Bokanyi has been at the company more than a year. She has an extensive, multidisciplinary background.