Sr. System Integration Engineer

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.

We are looking for a Sr. Staff System Integration Engineer to join our team. This is a remote role, reporting to the Director, Software Development Engineering in the Security Operations (Sec Ops) department. In this role, you will be responsible for validating and verifying integrations between security platforms and third-party tools, ensuring reliability, accuracy, and performance across the SOC ecosystem. You will design and execute comprehensive test strategies that ensure seamless interoperability and data integrity across all integrated systems.

• Design, develop, and execute end-to-end integration test plans, cases, and scripts, performing functional, regression, performance, negative, and API testing (REST, GraphQL, webhooks) across all Sec Ops applications
• Build and maintain automated test frameworks to validate API contracts, data flows, and system behaviors, ensuring data pipelines accurately ingest, normalize, and correlate security telemetry across integrated platforms
• Partner closely with engineering, product, and platform teams within an Agile framework to understand integration requirements, define acceptance criteria, and actively participate in sprint planning and code reviews
• Manage the end-to-end defect lifecycle by identifying, tracking, and resolving bugs with engineering teams, maintaining meticulous test documentation, and ensuring compliance with security, privacy, and data handling standards
• Act as the definitive quality gate for all integration releases, providing final sign-off before production deployment

• You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful.
• You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands‑on execution.
• You are a problem‑solver. You love running towards the challenges because you are laser‑focused on finding the solution, knowing that solving the hard problems delivers the biggest impact.
• You are a high‑trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust.
• You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a…