Grit

What does it take to run a company where the business is risk itself?
In conversation with Joubin Mirzadegan, Peter Zaffino shares what the role demands at AIG, including high stakes decisions, constant responsibility, and sacrifice.
This episode looks at his journey as CEO ahead of his transition to Executive Chairman this June.
Leading at a global scale across 200+ countries.
Guest: Peter Zaffino
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In a market that hadn’t changed in decades, Linear didn’t win by being faster. They won by being more thoughtful.
Karri Saarinen helped shape design at Airbnb and Coinbase before building Linear around small teams and high standards.
On Grit, he shares how Linear is building for a new era of software development.

Guest: Karri Saarinen, co-founder and CEO of Linear
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What does security look like when attackers use AI better than you do?
Armadin recently raised $200M to build for the “attacker of the future,” where attacks are autonomous and harder to contain.
On the Kleiner Perkins Grit podcast, Kevin Mandia joins Joubin Mirzadegan to share how he’s thinking about this shift, why cybersecurity has always been a calling, and why customer trust is what ultimately compounds into market leadership.
Guest: Kevin Mandia, Founder and CEO, Armadin
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Emil Michael went from scaling Uber across 600 cities to rewiring the world's largest military.
In the midst of the Pentagon-Silicon Valley debate, the now U.S. Under Secretary of Defense for Research and Engineering opens up about what a real partnership demands from both sides.
He also shares how he's built three new entry points for defense tech companies, and why America's military is called the "Department of War" again.
Guest: Emil Michael, U.S. Under Secretary of Defense for Research and Engineering
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Few founders have seen Silicon Valley from every seat at the table.
After co-creating Google Maps at Google, serving as CTO at Facebook, and later as co-CEO of Salesforce, Bret Taylor is now building AI agents at Sierra to redefine customer experience.
On Grit, he explains why “competitive intensity” is a core value at their fast-growing company and why he believes AI won’t lead to a world where people stop working.
Guest: Bret Taylor, co-founder of Sierra
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