Age: 35

From: Arlington, Texas

No Slacker: As vice president of product, Underwood aims to turn Slack’s popular messaging software into a destination for workplace collaboration. “For any fire drill that takes place. Any new opportunity.”

Pick Up The Slack: At Underwood’s behest, Slack is investing $80 million in third-party apps that complement its technology. One example? Awesome, an app that summarizes chat threads so people don’t miss updates.

Slack-jawed: Underwood’s résumé includes Google goog , Travelocity, Twitter twtr , and all-female investor group #Angels. “I fell in love with Slack for personal reasons. They were working on a problem I was passionate about—information overload in the workplace.”

From stats to chats: Underwood’s first childhood software project: a catalogue for her baseball cards.

Cut her some… : When she loses perspective, Underwood unfurls her yoga mat. “It helps me maintain equilibrium.”

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A version of this article appears in the February 1, 2016 issue of Fortune.