Sen. Kamala Harris beefed up her California staff Wednesday with seven new hires, forming one of the largest presidential campaign operations in the state.

The campaign will maintain two hubs, in Harris’ native Oakland and in Los Angeles where she lives now, said her newly appointed California communications director, Maya Humes. The campaign highlighted that eight of its 10 California staffers are women, three are from immigrant families and two are immigrants.

“Together, this team brings a wealth of experience and diversity to the table,” Humes said. “We’ve fought hard for Californians across the state throughout our careers, and we’re excited to do so once again alongside Sen. Harris.”

Humes was most recently the national press secretary at NextGen America, a political organization founded by one of Harris’ presidential rivals, former hedge fund manager and Democratic funder Tom Steyer.

Harris’ new deputy state director for California, Madeline Franklin, was the former campaign manager for state schools chief Tony Thurmond. The campaign’s organizing director, Kristina Bigdeli, was the California Democratic Party’s get-out-the-vote director in the 25th Congressional District, where she helped Katie Hill upset Republican Rep. Steve Knight last year.

Nicolás Pedreira, an immigrant from Argentina, is the campaign’s California deputy political director and a veteran of Voto Latino.

In February, Harris announced that Courtni Pugh would be the state’s campaign director. The veteran union leader, who was born in South Korea, previously advised the 2018 gubernatorial campaign of former state Controller John Chiang and the U.S. Senate campaign of former Los Angeles state Sen. Kevin de León.

Harris’ California operation is rivaled by only that of Sen. Bernie Sanders. The Vermont independent has 11 staffers in the state, according to Sanders spokesman Joe Calvello.

Massachusetts Sen. Elizabeth Warren, who like Harris is in the top tier of candidates, does not have any California staffers yet, according to a spokesman. A representative for former Vice President Joe Biden, who leads in most national polls, did not respond to requests for comment on California staffing.

Joe Garofoli is The San Francisco Chronicle’s senior political writer. Email: jgarofoli@sfchronicle.com Twitter: @joegarofoli