Amazon chief executive Andy Jassy told employees in a Tuesday memo that he expects artificial intelligence to thin their ranks, reducing headcount at what is now the United States’ second-largest private employer.

Referring to the impact of artificial intelligence, Andy Jassy tells employees, “We expect that this will reduce our total corporate workforce.”

Amazon chief executive officer Andy Jassy outlined a near future where AI will “make our jobs even more exciting and fun than they are today” — but at the same time, he said, the technology will cut the overall number of jobs at the ecommerce giant.