SAN JOSE — A tech company that had been in expansion mode in the Bay Area has disclosed plans for dozens of South Bay layoffs — and warned that more staff cuts may loom, state labor documents show.

Renesas Electronics plans to trim 68 jobs in the South Bay, the company reported to the state Employment Development Department.

The company said that the “mass layoffs” affected the company’s office hubs in south San Jose and Milpitas, the WARN notices on file with the EDD show.

Renesas, a semiconductor company, said the job cuts occurred on Jan. 21 at both the San Jose campus at 6024 Silver Creek Valley Road and its Milpitas office at 1001 Murphy Ranch Road.

The staffing reductions arrived slightly more than two years after Renesas disclosed it had completed acquisitions of other companies that left it poised for growth.

In December 2023, Renesas filed a proposal with city planners for a wide-ranging revamp of its south San Jose campus, consisting primarily of an upgrade of an existing building that totals 248,900 square feet.

But that same month, Renesas disclosed to the EDD that the company had decided to embark on job cuts in both San Jose and Milpitas that would erase 65 jobs in those two cities.

The current round of job cuts might extend until March 28, Renesas revealed.

It’s also possible that Renesas might launch another spate of staffing reductions, Dan Smoot, Renesas director of HR Business Partner, wrote in the WARN letter.

“Renesas expects that there may be additional groups of employees implicated from Jan. 15, 2024 through April 2025, although the details and specifics of such terminations, including the individuals and the locations of the individual affected, have not been finalized,” Smoot wrote in the WARN notice.