Goldman Sachs Chief Executive David Solomon was beating the “back-to-the-office” drum again this week — this time from a conference in Los Angeles.

The Goldman honcho said an in-person culture is critical for the New York-based bank, where more than 50 percent of employees are under 30.

He spoke from Beverly Hills in a “private chat” with financier Michael Milken at the Milken Institute Global Conference.

The conversation with Milken, which several attendees relayed to The Post, was for roughly 30 minutes to a crowd of more than 100 people, according to the sources.

Solomon’s continued push for in-person work comes days after The Post reported that some Goldman executives moved to a lower floor of the bank’s skyscraper headquarters — a move at Solomon’s insistence to be closer to a commons area where people of all ranks gather.

“Ninety percent of the time, he is away from his desk,” a person familiar told The Post of Solomon’s jet-setting while he insists others are in the office. “David is traveling all the time and everyone else is stuck there,” another source said.

A Goldman spokesperson declined to comment.

Goldman in June welcomed workers back to the office with food trucks and a DJ at its downtown Manhattan headquarters.