Prior to co-founding Refactor, Zal spent 2+ years at Andreessen Horowitz as a Partner on the investing team working across stages & sectors. He co-led investments in Omada Health, Branch.co, AltSchool, Honor, and more, while helping to launch the firm's Bio Fund. Before becoming an investor, Zal spent 10 years as a PM at Microsoft, Google, Netflix, and LinkedIn. He worked on emerging markets for Windows, became one of the first monetization team members at YouTube, and then co-founded a consumer mobile startup. Later, he became the 1st Head of Mobile at Netflix and helped start the Sales Solutions business at LinkedIn. Zal also volunteered as a Kiva Fellow. He has a BS in Economics from Penn's Wharton School.