The social-media company had 7,500 workers when Elon Musk took over in October. Those let go Saturday include one who slept in the office to meet Musk's strict deadlines

Twitter laid off another 200 employees on Saturday night, the New York Times reported, citing three people familiar with the matter.

That's equal to about 10% of the roughly 2,000 people who remain at the company, down from about 7,500 when billionaire Elon Musk acquired the social media platform in October.

The cuts affected product managers, data scientists and engineers who worked on machine learning and site reliability, roles that help keep the company's various features up and running.

The monetization-infrastructure team, which maintains the services that make money for Twitter, was cut to fewer than eight people from 30, one of the sources said.

Those laid off included the founders of small tech companies that Twitter had acquired, including Esther Crawford, founder of Squad, a screen-sharing and video-chat app, and Haraldur Thorliefsson, who founded the design studio Ueno.

Crawford gained some notoriety back in November when she tweeted an image of herself in a sleeping bag at work while working overtime to meet Musk's deadlines.

Crawford again took to Twitter on Sunday to push back at critics who mocked her for working so hard for Musk, only to be fired.

Musk has been making major changes to Twitter since he acquired it for $44 billion in October, including heavy cost-cutting he said was needed to boost revenue. In his first week as owner, he laid off half of the staff, prompting a wave of resignations. The Tesla Inc. (TSLA) head has also changed content-moderation policies and let go the company's entire diversity, equity and inclusion team. Major advertisers have responded by quitting the platform in droves.

An email sent to an employee, dated Saturday, said the person's role was eliminated as part of a wider review, according to a copy reviewed by The Wall Street Journal.

"Today is your last working day at the company," the email said.

"Waking up to find I've been locked out of my email," tweeted Martijn de Kuijper, a senior product manager at Twitter and founder of newsletter tool Revue, which was acquired by Twitter in 2021.