Amazon’s delivery-speed improvements were mainly driven by Jeff Bezos in the early years and later by Andy Jassy and Doug Herrington as Amazon scaled its logistics network. The biggest changes came from regionalizing operations, placing inventory closer to customers, and expanding Same-Day and One-Day delivery.

Who drove the changes

  • Jeff Bezos helped set the original speed-and-convenience strategy when Prime launched in 2005 with free Two-Day Shipping. That was the foundation for Amazon’s later delivery-speed push.
  • Andy Jassy has overseen the more recent phase of Amazon’s logistics and AI-driven efficiency work, including delivery-speed initiatives that Amazon says are producing results.
  • Doug Herrington , CEO of Worldwide Amazon Stores, has been one of the main public voices explaining how Amazon now delivers faster while also lowering costs and improving safety.

What improved

Amazon says the speed gains came from a few major operational changes:

  1. Regionalizing the U.S. network so orders travel within smaller, easier-to-reach regions.
  1. Storing products closer to customers using better demand forecasting and inventory placement.
  1. Expanding Same-Day facilities near metro areas to shorten the distance from picking to delivery.
  1. Reducing handoffs and miles traveled , which also lowered costs and improved safety metrics.

When it happened

  • 2005: Prime launched with Two-Day Shipping as the headline benefit.
  • 2019–2022: Amazon reported a 23% drop in U.S. recordable incident rate and a 69% drop in lost-time incident rate while investing heavily in safety.
  • By 2023: Amazon said it had reached its fastest Prime speeds ever at that point, with more than half of Prime member orders arriving same day or next day in the top 60 U.S. metro areas.
  • 2025: Reporting noted Amazon’s delivery-speed initiatives were still producing results, tied to inventory placement closer to customers.
  • 2026: Amazon publicized continued gains in fast delivery and expanded same-day operations.

Plain-English answer

If you’re asking who was responsible , the answer is not one person. The long-term improvement came from Amazon’s leadership team and operations groups over many years, with Bezos setting the original fast-shipping model, and Jassy and Herrington leading the newer network redesign and same-day expansion.

TL;DR

Amazon got faster by redesigning its delivery network, putting inventory nearer to customers, and growing same-day fulfillment. The major leaders linked to that progress are Jeff Bezos, Andy Jassy, and Doug Herrington.