Two of the busiest places to work running up to the holiday shopping season are at Amazon fulfillment and sort centers.

These facilities around the world are responsible for organizing, processing and shipping the more than a billion packages that people buy from Amazon each year. And in the days leading up to Black Friday and Cyber Monday, in the United States, these centers often look like someone went and kicked a giant anthill.

Amazon leases or owns approximately 71,655 square feet of warehouse space in North America for its various centers, according its 2015 annual report.

There are three such centers in or near the San Antonio area. On the West Side at 1410 S. Callaghan Road is one of three of Amazon sort centers in Texas. While Schertz and San Marcos are each home to an Amazon fulfillment center.

RELATED: Texas adds 13,700 jobs in October

And not unlike out of the final scenes from “Raiders of the Lost Ark,” those huge Amazon warehouses are gorged with merchandise as workers rush to fulfill duties during the company’s busiest time of year.

According to a news release, on Cyber Monday alone in 2015 Amazon sellers received orders for more than 23 million items.

The annual report notes that 33 percent of Amazon’s annual revenue is recorded during its fourth quarter.

To prepare for this huge uptick in seasonal orders Amazon created 3,500 seasonal associate roles for the San Antonio-Austin corridor, said Ashley Robinson, communications manager for Amazon Operations. Nationally the company hired more than 120,000 seasonal associates.

“And we’re still hiring!” She said Friday. Robinson said Amazon centers run shifts 20-hours-a-day, Monday through Sunday, during the holiday shopping season.

Those wanting to inquire about working for Amazon this season can visit https://amazon.force.com.

So as you prepare to consume with the rest of America next week, take a look at the inside of one of those fulfillment centers and see where your toys, electronics, clothes and jewelry await you to click “place your order.”