Jason Lohr is stirring the pot. A founding partner of small San Francisco plaintiffs’ firm Lohr Ripamonti & Segarich, he has formally moved to disqualify the attorney who negotiated an $84 million settlement with Uber — the only objector to take that step. He’s also leading a sex bias class action against Twitter on behalf of female software engineers, going up against Orrick, Herrington & Sutcliffe. He talks about his background in China, the future of the “gig economy,” and why size doesn’t matter in the field of law.

Q. You have a pretty unique legal background, working on IP and privacy matters at Lewis Brisbois, and before that in Beijing dealing with business law at Zhong Lun Law Firm. What drew you to consumer and employee class actions?