Jackson Lewis has hired employment litigator Tracy Costantino as a partner in its Los Angeles office. She was previously a partner at Lewis Brisbois Bisgaard & Smith, where she served as vice chair of her former firm’s wage-and-hour class actions practice.

Constantino, who practiced at Lewis Brisbois for a decade, has wrapped up more than 45 class action suits to her clients’ satisfaction, according to Jackson Lewis. Most of that work has been in California, Costantino said, adding that at her new firm she hopes to expand into multidistrict litigation.

“I think [this move] made sense just because Jackson Lewis has a bigger employment presence across the country, and the clients I was starting to develop and get had multiple locations across the nation,” Costantino said. “I felt like this firm could service my clients much better than Lewis Brisbois. And that’s nothing against Lewis Brisbois—they’re a great firm.”

Though Costantino had seen colleagues from Lewis Brisbois move to Jackson Lewis over the years, she said she had not fully understood the depth of Jackson Lewis’ specialization in employment matters until Mia Farber, the firm’s Los Angeles managing partner, approached her about coming onboard.

“I had never had the discussion about how into the weeds they got,” Costantino said.

In a statement prepared by Jackson Lewis, Farber called Costantino “a terrific asset to our office.” She added that Costantino had an “exceptional understanding of the impact of labor and employment law issues on today’s employers.”

Last month, Jackson Lewis’ San Francisco office brought on partner D’Anne Gleicher, who had practiced for more than a decade at a two partner shop she helped start in Alameda, California. And earlier this year, the firm added employment litigation partner Kristopher Badame in Irvine, California, where he had also founded and run his own boutique.