Amazon beefing up employment at distribution centers Inc. says it is hiring 6,000 full-time workers to staff up across its more than 50 distribution centers in the United States.

Central Indiana distribution centers in Plainfield and Whitestown will be among those that will add staff, Amazon said, without providing specific numbers.

Another Amazon center in Indiana—in Jeffersonville—is also on the list of those expected to add more workers.

The workers will pick, pack and ship products to fulfill customer orders. Currently, Amazon has about 50,000 full-time workers at the centers nationally.

Amazon has been opening distribution centers across the country in order to speed up delivery times. Its $99 annual Prime membership service comes with free two-day delivery on many items.

The Seattle-based company employed about 154,100 full-time and part-time workers in total at the end of 2014.

Amazon in general has been expanding its Prime program's offerings in an effort to grow its membership with services such as grocery delivery, one-hour delivery in some cities, beefed up video streaming and the creation of a Bluetooth speaker called the Echo that syncs with Prime music.

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