Sierra is a Founding Partner at Voyager, a venture firm investing in early-stage climate technology companies. She has been structuring markets, financial products and investments for climate stabilization since 2005. A Kauffman Fellow, Sierra has invested in more than 30 early-stage climate tech companies since 2015. Previously, she led corporate development teams at financial technology companies responsible for $3B+ in solar and energy efficiency financing. Her experience in climate policy and market design includes the Obama White House Office of Energy and Climate Change and the International Energy Agency.

Sierra is a graduate of Stanford and Harvard, where she researched lifecycle emissions analysis and carbon market design. She lives in San Francisco with her husband and young daughter.