Sommer is an iOS engineer at Apple. Previously, she was the lead for Mobile Accessibility on iOS and Android at Twitter. Before moving into this role, she worked on various iOS projects such as DMs and Anti-spam at Twitter. Prior to coming to Twitter, Sommer worked on the iOS team at Apple. She earned her BA in Psychology and MS in Computer Science at Stanford University. In her free time, Sommer enjoys performing as an aerialist, playing her flute, and traveling.