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Staff Engineer - Container Security

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92% of candidates apply because they are a Most Loved Workplace®
Sunnyvale, California - HQ
Engineering
FullTime

About the Role

At Illumio, a Most Loved Workplace® certified employer in the Technology space, The world leader in breach containment. Built on AI. Made for Zero Trust..

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 You will understand and enhance modern container platforms such as Kubernetes, Istio, OpenShift, AKS, EKS, GKE etc. You will have the opportunity to own and design critical features and subsystems, work out all the details, and defend the design before your peers. You will deliver a rock-solid implementation that is elegant, simple, scalable, stable, secure, and supportable. Our product protects the critical infrastructure of large enterprises. It must work. You will also mentor junior engineers, new-grads, and interns to help them grow as engineers and become productive members of the team. You will have the opportunity to work with the field organization and key customers to shape this novel product. Your Toolkit: Bachelor’s in computer science or equivalent degree. Master’s degree a plus 8+ years building distributed & scalable software systems. Proficient in at least one higher-level language such as Go, Python , Java, etc. Experience building large, distributed, and scalable software systems. Familiarity with, and passion for Kubernetes and related technologies. Solid foundation in data structures, algorithms, networking concepts, and debugging skills. Experience with networking and security controls is a plus General TCP/IP networking knowledge Unix/Linux programming environment experience #LI-KD1 #LI-ONSITE This position involves access to software/technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. Our Commitment Illumio believes that an environment of unique backgrounds, experiences, viewpoints, and individual contributions creates a culture of belonging, drives our future, and makes us stronger together in support of our customers and their success. All official job offers from Illumio are extended directly by our recruitment team and will be sent through an official E-Signature document for your review and signature. Please be aware that we do not ask for any personal information in the process of extending offers of employment, such as financial details or social security numbers. Upon acceptance of any offer, we will request such information as part of the onboarding process prior to or on your first day of employment, and only after completing a background check through an authorized third-party vendor. If you receive any communication asking for personal details outside of these processes, please contact us immediately to verify the authenticity of the request. Your security is important to us, and we are committed to a safe and transparent hiring experience. For roles in San Francisco and Los Angeles: Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Illumio will consider for employment qualified applicants with arrest and conviction records.

Want to learn more about what it's like to work at Illumio? View our full profile.

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Why This Is a Most Loved Workplace® Certified Job

What It's Like to Work Here

Lightbulb Continuous Innovation and Creative Problem-Solving
Users Collaborative Cross-Functional Teamwork
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Shield Ownership and Accountability
Zap Excellence in Execution with Speed
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Certified for: Most Loved Workplace Most Loved Workplaces® 2026, Most Loved Workplace Most Loved Workplaces® 2025

Frequently Asked Questions About Working at Illumio

Common questions candidates ask about this role and Illumio's workplace

Illumio is a Most Loved Workplace®. Most Loved Workplaces® place love at center of business. Illumio is a Large employer in the Not Declared sector. Explore Illumio careers, culture, employee experience, and open roles.

Please review the specific job listing or contact Illumio's recruiting team for details on remote or hybrid work options for this role.

Salary information may vary by role and location. Please check the specific job listing or discuss compensation during the interview process.

Illumio is an established organization in its industry. The company is a certified Most Loved Workplace®, highlighting a strong, positive culture and committed workforce.

Key benefit categories include: Health and Wellness, Work-Life Balance, Professional Development, Financial and Retirement, Team and Community. You can view more details on their CertCheck profile.

The day-to-day environment is guided by core values such as Continuous Innovation and Creative Problem-Solving and Collaborative Cross-Functional Teamwork and Genuine Care and Support for One Another.

The company has committed to inclusive practices including: Empower Growth and Development and Foster Genuine Trust and Psychological Safety.

They have earned Most Loved Workplace® certifications including: Most Loved Workplace Most Loved Workplaces® 2026 and Most Loved Workplace Most Loved Workplaces® 2025.

Illumio currently has 68 open positions. They are hiring across departments like Engineering, Security, Sales. You can view all current openings at certcheck.mostlovedworkplace.com/companies/illumio/jobs.

The interview process typically involves an initial recruiter screen followed by team interviews. Please contact Illumio's recruiting team for specific details on this role's process.

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