Andy Jassy joined Amazon in 1997 after Harvard Business School and was assigned in the early 2000s to lead a small internal initiative to externalize Amazon's infrastructure tooling. That initiative became Amazon Web Services, which under his leadership grew into the largest public cloud business in the world and the most profitable division of the parent company.
Named chief executive of Amazon in 2021 as Jeff Bezos transitioned to executive chairman, Jassy inherited a company stretched by pandemic-era expansion and immediately moved to rationalize headcount, slow speculative bets and reaccelerate retail margins, while continuing to expand the AWS footprint and adding a deep AI services stack including the Bedrock platform and proprietary Trainium accelerators.
Inside Amazon he is regarded as the keeper of the original operating culture — long-form written narratives, customer-obsession metrics and the 'two-pizza team' organizational model — applied at a planetary scale.