--- title: 'Staff Engineer - Cloud Security at Illumio' canonical: 'https://feeny.ai/job/staff-engineer-cloud-security-illumio-sunnyvale-zb72ybtevhsz' type: 'job' last_seen: '2026-09-08' --- # Staff Engineer - Cloud Security at Illumio - **Company:** [Illumio](https://feeny.ai/companies/illumio) - **Location:** Sunnyvale, CA / HQ - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-08-26 - **Last confirmed live:** 2026-09-08 - **Apply:** https://jobs.ashbyhq.com/illumio/74877a80-e641-4f51-9d17-1bb449549842 ## Job description 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 be developing containerized (micro) services for a distributed multi-tenant system that process data and real time events and network telemetry from multiple public clouds to provide real time insights, visibility, and security recommendations to customers so they can identify and minimize risk in the cloud. - You will design your service, work out all of the details, defend the design/architecture before your peers, and deliver a rock-solid implementation. - 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 primarily write code in Go and work with data pipeline using SQL or other types of interfaces. We leverage Kubernetes for service infrastructure platform. We welcome people with backgrounds in other languages and technology stacks along with a desire to learn. - Own critical features and subsystems and own the entire software development lifecycle, from clarifying requirements to ensuring their successful deployment and usage by customers. - Own operational aspects of the system, being on the front lines and experiencing first-hand the challenges of operating such a system, will make you understand how to write better more supportable software, like no other experience. - Own code quality, as we do early developer testing and functional/integration testing to ensure we build robust and resilient products. - Partner with Product Management to review, refine requirement that exceed our customers’ expectations. - Develop deep understanding of the fundamental problems our customers need solved through interaction with stakeholders and peers. ## YOUR TOOLKIT: - Bachelor’s in computer science or equivalent degree. Master’s degree a plus - 8+ years building distributed & scalable software and systems - Passion for software development, willing to constantly learn, keeping up with technological trends, and working in a team setting - AWS / Azure / GCP cloud experience: - Extensively used one of these platforms at the API/programming level - Experience with networking and security controls is a plus - Our platform is K8s based so experience delivering a containerized serviced is desired - Language requirements - Experience in Go and SQL - REST API client experience - CloudFormation, Terraform, Ansible are nice to have - 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 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. ## About Illumio ## Company Overview - **One-liner**: Illumio provides a breach containment platform that prevents lateral movement and strengthens cyber resilience across hybrid and multi-cloud environments using AI-powered microsegmentation. - **Entity Type**: Private (over $557.5M in total funding, 5 rounds, late-stage) - **Headquarters**: Sunnyvale, California, USA - **Founded**: 2013 - **Founders**: Not publicly available (co-founders typically listed as Andrew Rubin and PJ Kirner, but not confirmed in provided sources) ## Core Business - **Primary industry/industries**: Cybersecurity (Computer and Network Security) - **Target customers**: B2B – enterprise and midsize businesses across banking & financial services, energy & utilities, government, healthcare, and manufacturing - **Mission or purpose statement**: “Breaches are Inevitable. Disasters are Optional.” – focuses on shifting from prevention to cyber resilience and breach containment. ## Products & Services - **Illumio Segmentation**: Microsegmentation platform that secures critical assets, workloads, and devices across hybrid and multi-cloud environments. Prevents lateral movement and enforces Zero Trust. - **Illumio Insights**: AI-powered observability, detection, and containment platform. Identifies lateral movement, detects attacks, and enables one-click containment using the Insights Agent (AI teammate). - **Illumio CloudSecure**: A newer product focused on cloud security, integrating with Azure Firewall Management and other cloud environments. ## Market Standing - **Valuation/Market Cap**: Not disclosed. - **Key Metrics**: Annual revenue of $100M (LinkedIn estimate); total funding of $557.5M (LinkedIn). - **Notable Investors/Partners**: Not specified in provided sources. Key partnership: collaboration with Microsoft to strengthen cyber resilience and prevent breaches at scale. - **Growth Signals**: 640 employees (+12.0% YoY, +96 people); named a 2024 Forrester Wave Leader in Microsegmentation; named a Customers’ Choice in the 2026 Gartner Peer Insights Voice of the Customer for Network Security Microsegmentation; targeting new AI-driven market with Insights Agent. ## Competitive Advantages - Proven leader in microsegmentation (Forrester Wave Leader, Gartner Customers’ Choice). - First-to-market breach containment platform – not just detection but automated containment. - Strong cross-platform support (hybrid, multi-cloud, on-premises). - High customer satisfaction (4.8/5 star rating based on reviews). - Deep integrations with major cloud providers (Microsoft Azure, AWS). ## Strategic Focus - Expanding AI capabilities with the Insights Agent for faster threat detection and automated remediation. - Deepening cloud-native integrations, especially with Azure Firewall Management. - Scaling from mid-market to large enterprise and government sectors. - Building a new global headquarters (Sunnyvale) and expanding regional offices (London, Paris, Tokyo, Singapore, Australia, etc.). ## Why Work Here - **Culture**: “Illumineer” culture built on innovation, cross-functional collaboration, and inclusion. Core values: Customer First Always, Relentless Execution, Onwards Together. - **Work model**: Hybrid – 2 days per week in office (Sunnyvale); every Friday is a remote work day. - **Benefits**: Comprehensive medical benefits, generous parental leave, fitness reimbursement, mentorship program, professional development resources, catered lunches, stocked kitchen, Illumineer Day (dedicated holiday). - **Employee Resource Groups**: The Neuroverse (neurodiversity), The Rainbow Room (LGBTQIA+), The Women (women’s leadership), The Village (caregivers). - **Growth**: Fast-growing company (12% headcount YoY) with a mission-critical cybersecurity product; interns work on real projects that impact the future of security. ## Sources 1. [Illumio Homepage](https://www.illumio.com/) 2. [Illumio Careers Page](https://www.illumio.com/company/careers) 3. [Illumio Corporate Overview](https://www.illumio.com/resource-center/corporate-overview) 4. [Illumio Job Listing (Senior Backend Engineer)](https://www.illumio.com/company/job-listing) 5. [Illumio LinkedIn Company Page](https://www.linkedin.com/company/illumio) ## Other roles at Illumio - [Enterprise Sales Executive](https://feeny.ai/job/enterprise-sales-executive-illumio-tokyo-zvr9x3b4fvv8) — Tokyo, Japan - [Digital Marketing Manager - EMEA & APAC](https://feeny.ai/job/digital-marketing-manager-emea-apac-illumio-united-kingdom-3mafa3tymacx) — United Kingdom - [Sr. Engineering Manager - Architecture](https://feeny.ai/job/sr-engineering-manager-architecture-illumio-hq-sunnyvale-ca-1mvjscekcvfy) — HQ / Sunnyvale, CA - [RVP, South](https://feeny.ai/job/rvp-south-illumio-georgia-s0zsh6qrxcvq) — Georgia - [Sr. Manager, Engineering - Cloud Security](https://feeny.ai/job/sr-manager-engineering-cloud-security-illumio-hq-sunnyvale-ca-4anywbf645nr) — HQ / Sunnyvale, CA - [Member of Technical Staff II- Cloud Security](https://feeny.ai/job/member-of-technical-staff-ii-cloud-security-illumio-sunnyvale-andbqx25d4fw) — Sunnyvale, CA / HQ - [Staff Engineer - Container Security](https://feeny.ai/job/staff-engineer-container-security-illumio-sunnyvale-ypkw5k03q106) — Sunnyvale, CA / HQ - [Director, Product Management](https://feeny.ai/job/director-product-management-illumio-sunnyvale-tsrtv28gahj9) — Sunnyvale, CA / HQ - [Sr. Engineering Manager - Full Stack](https://feeny.ai/job/sr-engineering-manager-full-stack-illumio-hq-sunnyvale-ca-tr0tava8r9jg) — HQ / Sunnyvale, CA - [Sr. Growth Marketing Manager - Upsell & Expansion](https://feeny.ai/job/sr-growth-marketing-manager-upsell-expansion-illumio-sunnyvale-vjqw57ga2shs) — Sunnyvale, CA / HQ