AWS chief Andy Jassy once served as Jeff Bezos' first 'shadow' adviser. Now, he'll replace Bezos as Amazon CEO.

Andy Jassy, left, and Jeff Bezos.
Mike Blake/Reuters; Mark Ralston/AFP/Getty Images
Andy Jassy, CEO of AWS, will take over as Amazon CEO in Q3 2021.
Jassy was once Jeff Bezos' "shadow" adviser, a quasi-chief of staff who joined his every meeting. 
Jassy built AWS from the ground up since 2003, becoming one of the most powerful execs in tech.
Visit the Business section of Insider for more stories.
Amazon CEO Jeff Bezos is handing over the reins of the company to his longtime second-in-comma