A former Google engineer has been charged with stealing trade secrets related to the company’s AI technology and secretly working with two Chinese firms.

Linwei Ding, a 38-year-old Chinese national, was arrested on Wednesday in Newark, California, and faces four counts of federal trade secret theft, each punishable by up to 10 years in prison.

The indictment alleges that Ding, who was hired by Google in 2019 to develop software for the company’s supercomputing data centres, began transferring sensitive trade secrets and confidential information to his personal Google Cloud account in 2021.

“Ding continued periodic uploads until May 2, 2023, by which time Ding allegedly uploaded more than 500 unique files containing confidential information,” said the US Department of Justice in a statement.

Prosecutors claim that after stealing the trade secrets, Ding was offered a chief technology officer position at a startup AI company in China and participated in investor meetings for that firm. Additionally, Ding is alleged to have founded and served as CEO of a China-based startup focused on training AI models using supercomputing chips.

“Today’s charges are the latest illustration of the lengths affiliates of companies based in the People’s Republic of China are willing to go to steal American innovation,” said FBI Director Christopher Wray.