2017 was a difficult year for Uber, but rival Lyft has been firing on all cylinders. It expanded across the U.S., made a big push into its self-driving research and development unit, and most recently raised a whopping $1.5 billion at an $11 billion valuation.

Part of that momentum can be attributed to the company’s new chief strategy officer, Raj Kapoor. Kapoor, who joined Lyft in October 2016, previously sat on the company’s board when he was an investor at Mayfield Partners.

This article originally appeared on Recode.net.