Principal Information Security Engineer (Identity)

About Zscaler

Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise , we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate —we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession , collaboration, ownership, and accountability.

We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.

Role

We are looking for a Principal Information Security Engineer (Identity) to join our team. This is a Hybrid (onsite three days a week in San Jose, CA) role, reporting to the Director, Information Security Compliance in the Information Security Compliance department. The Principal Information Security Engineer (Identity) will own the architectural backbone of how Zscaler's internal service authentication and authorization operate at scale. In this role, you will design and drive adoption of the credential model, establishing a cryptographic trust foundation while setting identity patterns and standards for engineering teams across the company to consume.

What you’ll do (Role Expectations)

• Own the end-to-end architectural design of the Machine Identity service

• Lead Proof of Concepts (PoCs) for critical architectural components including SPIFFE/SPIRE workload attestation, Non-Human Identity (NHI) governance workflows, and system design validation

• Drive cross-team implementation by owning delivery accountability across partner teams, running design reviews, unblocking technical challenges, and managing timelines

• Champion engineering adoption by building SDKs and defining seamless migration pathways from human identity to Non-Human Identity (NHI)

• Design the identity and authorization model for LLM workloads and AI agents operating within the organization

Who You Are (Success Profile)

• You thrive in ambiguity and dynamic environments, comfortably building the path forward and viewing complex challenges as raw material