Brendan Castle

Chief People Officer at Zscaler

Brendan Castle serves as the Chief People Officer at Zscaler, where responsibilities include developing and executing people and culture strategies aligned with the organization's strategic direction, focusing on areas such as talent management and change management. In addition to this role, Castle is a Board Advisor for HelloSky, which specializes in AI-driven precision hiring. Previous experience includes significant leadership positions at Google, where Castle was the Vice President and Global Head of Recruiting & People, overseeing large recruiting teams and strategies across multiple global product areas. Earlier, Castle held various senior roles at Citi, including Managing Director & Global Head of HR Shared Services, leading extensive HR operations across various regions. Brendan Castle holds multiple degrees in human resource management and leadership from prestigious institutions, including Wharton and Harvard Business School.

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Zscaler

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Zscaler enables the world’s leading organizations to securely transform their networks and applications for a mobile and cloud first world. Its flagship services, Zscaler Internet Access and Zscaler Private Access, create fast, secure connections between users and applications, regardless of device, location, or network. Zscaler services are 100% cloud-delivered and offer the simplicity, enhanced security, and improved user experience that traditional appliances or hybrid solutions are unable to match. Used in more than 185 countries, Zscaler operates the world’s largest cloud security platform, protecting thousands of enterprises and government agencies from cyberattacks and data loss.


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