Staff Engineer

About the role

ONWARDS TOGETHER!

Illumio is the leader in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by the Illumio AI Security Graph, our breach containment platform identifies and contains threats across hybrid multi-cloud environments – stopping the spread of attacks before they become disasters.

Recognized as a Leader in the Forrester Wave™ for Microsegmentation, Illumio enables Zero Trust, strengthening cyber resilience for the infrastructure, systems, and organizations that keep the world running.

LOCATION: 5 ON-SITE DAYS A WEEK IN SUNNYVALE, CA HEADQUARTERS.

OUR TEAM'S VISION:

Our Engineering team is driven by a culture that thrives on visionary leadership, autonomy, and ownership, creating a dynamic synergy that drives us forward in the ever-evolving landscape of cybersecurity.

When you join our team, you become part of the leader in Zero Trust Segmentation. You'll work with a cutting-edge technology stack that spans operating systems, distributed applications, and immersive UI/visualization tools.

We're shaping the future of cybersecurity. And together, we will continue to build world-class products—led by people with different perspectives, backgrounds, and a commitment to innovation in a time when the world faces its greatest cybersecurity threats in history.

YOUR IMPACT:

We're looking for a Software Engineer to join the CloudSecure team and help deliver enterprise-grade cloud security at scale. You'll own quality across a multi-cloud micro-segmentation platform that protects workloads on AWS, Azure, and GCP—working across the full stack from cloud synchronization and policy computation to APIs, UI, distributed services, and large-scale infrastructure.

This role goes beyond functional testing. You'll build automation, validate performance and scalability at enterprise scale, improve release confidence, and ensure the platform remains resilient under real-world production conditions.

- Product Quality & Automation (50%)

- Design and execute comprehensive functional, integration, and end-to-end test strategies for CloudSecure features

- Build and maintain scalable API, UI, and end-to-end automation frameworks

- Validate cloud security workflows including resource discovery, policy computation, flow ingestion, visualization, and compliance across AWS, Azure, and GCP

- Partner with engineering and product teams to define acceptance criteria, improve testability, and drive shift-left quality practices

- Own defect triage, root cause analysis, and release readiness for your feature areas

- Quality Engineering & Infrastructure (50%)

- Design and execute large-scale performance and scalability tests simulating enterprise customer environments

- Thousands of workloads

- Hundreds of VPCs/VNETs

- Millions of flow records