principal software engineering Principal Engineer tech_leadership · Posted Oct 29, 2025
$194,000 – $233,000
USD per year

About this role

Illumio is hiring a principal-level Principal Engineer in the software engineering function based in Sunnyvale, CA. The posting calls out experience with Linux, Networking, Data Structures, Security. Compensation is listed at $194,000–$233,000 per year.

Role
Principal Engineer
Function
software engineering
Level
principal
Track
Tech leadership
Employment
Full-time
Location
Sunnyvale, CA
Department
Engineering
Posted
Oct 29, 2025

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Job description

from Illumio careers

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:

  • You will build a new, unprecedented way to orchestrate Zero Trust Segmentation down to the application / pod level, identifying easily blocking pathways of attacks in the container ecosystem

    This is an excerpt. Read the full job description on Illumio careers →
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