Gregg Zehr, president of Amazon's hardware research and development group, known as Lab126, has retired, the company confirmed to CNBC.
Tom Taylor, senior vice president of Amazon Alexa and a member of CEO Andy Jassy's elite S-Team, is also retiring, Amazon said.
In July, public policy chief Jay Carney left to join Airbnb, and 23-year Amazon veteran Dave Clark resigned as retail chief a month later.
Two prominent Black leaders — operations executive Dave Bozeman and Alicia Boler-Davis, senior vice president of global customer fulfillment — also announced their departures in June.
The average tenure for vice presidents is about 10 years, and for senior vice presidents it is "much longer," the spokesperson said.