Wal-Mart Stores Inc. is cutting hundreds of corporate jobs this month, following similar layoffs earlier this year, as the retail giant looks for ways to save as it spends billions to improve its e-commerce operations and existing stores.

The cuts fell broadly Tuesday and over the past few days on the international side of Wal-Mart’s business, as well as its technology group and at its warehouse chain Sam’s Club, according to people familiar with the matter.