Popular language learning platform Duolingo announced the appointments of Stephen Chen as the company’s first general counsel and Matt Skaruppa as its first chief financial officer.

The new executive hires come on the heels of Duolingo passing one million paid subscribers for its Duolingo Plus subscription product in early March.

Chen brings more than 20 years of experience as an attorney at publicly traded companies including Yahoo! and VMWare. Most recently, he was associate general counsel and vice president at Proofpoint. Skaruppa comes to Duolingo with more than 15 years of finance and operations experience, most recently as a senior member of Goldman Sachs Investment Partners.