Sr. Software Engineer- Container Security
Confirmed on the employer's own hiring board on Oct 11, 2026. First seen by Alion on Jul 17, 2026. Illumio scores B on the Alion truth index.
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: Onsite, Sunnyvale, California (5 days a week in the office)
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
5+ 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
Our Commitment:
Illumio believes that an environment of unique backgrounds, experiences, viewpoints, and individual contributions drives our success and makes us stronger together. We are dedicated to creating and maintaining a diverse culture and emphasizing inclusion and belonging.
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 our company 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.