Sam Altman just got two new colleagues at OpenAI: Sarah Friar and Kevin Weil

• OpenAI is hiring Sarah Friar and Kevin Weil to join its C-suite.
• Friar, who most recently served as CEO of Nextdoor, is the new chief financial officer.

Sam Altman is being joined by some top-tier talent in the OpenAI C-suite.

The company announced Monday that Sarah Friar and Kevin Weil would be its new chief financial officer and chief product officer, respectively.

"Sarah and Kevin bring a depth of experience that will enable OpenAI to scale our operations, set a strategy for the next phase of growth, and ensure that our teams have the resources they need to continue to thrive," Altman said in the announcement.

In a post on X, Weil said OpenAI's mission was "perhaps the most important and transformative of them all."

Friar was most recently CEO of Nextdoor and had previously served as Square's CFO. She's also worked at Goldman Sachs, McKinsey, and Salesforce.

Weil was the head of product and business for Planet Labs, as well as the cofounder of the Libra cryptocurrency, the vice president of product for Novi at Facebook, the vice president of product at Instagram, and the senior vice president of product at Twitter.

The announcement came after OpenAI — and Altman's leadership in particular — received scrutiny because of safety concerns as AI evolves.

"The world isn't ready, and we aren't ready," Daniel Kokotajlo, a former OpenAI researcher, wrote in an email announcing his resignation, according to The New York Times "I'm concerned we are rushing forward regardless and rationalizing our actions."

Several other researchers have resigned from OpenAI as concerns mount about its governance and whether it's moving toward a more profit-oriented approach.

In a statement, Friar said: "My goal is to help OpenAI continue excelling at what it does best — producing top-tier research and collaborating to maximize the benefits of AI tools for everyone."