Amazon employees spend about a total of one minute handling the package you order – this will include taking an item off the shelf, then boxing and shipping it. All the rest of the work is done by robots and automated systems.
Compared to 2014, the warehouse can hold 50% more inventory, because they can now more tightly pack the bookshelves that hold the items. The system even tells the employee what size of box they should use, and the amount of tape they will need.
Amazon hired 76,700 new employees in 2015 and 38,300 in the first 6 months of 2016, even as its mastery of machines limits the employee input needed on each package, there’s still a role for humans.