Staff Software Engineer

Illumio

Sunnyvale, California, United StatesFull-timePosted Nov 3, 2026

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.

Our Team's Vision:

At Illumio, our engineering team thrives on visionary leadership, customer-centric innovation, and relentless execution. We tackle the most critical and complex challenge in modern cybersecurity: stopping malicious actors and containing cyber threats before lateral movement turns an attack into a widespread business catastrophe.

As an engineer here, you will design, build, and optimize massively scalable distributed systems that power the future of zero trust, segmentation, and automated breach containment. Working across a high-performance stack—from operating system internals to highly available multi-cloud scaling and immersive data visualizations—you will solve complex networking, massive real-time telemetry processing challenges.

If you are eager to conquer deep systems-level problems, build fault-tolerant software at a massive scale, and create a safer digital future for the world’s largest enterprises, join our mission and engineer the defense systems of tomorrow.

Your Impact:

Deliver cloud architecture that solves the business problem and balance architecture and business margins

Collaborate with cross-functional teams, including Product manager, developers, DevOps engineers to understand business requirements and architect scalable cloud solutions

Design, deploy, and manage cloud-based architecture using industry best practices, focusing on efficiency, scalability, availability, performance, and security

Evaluate and select appropriate cloud technologies, platforms, and tools, including Kubernetes, to meet the company's needs and drive innovation

Optimize cloud-based systems for high availability, fault tolerance, and disaster recovery

Implement and manage monitoring, logging, and alerting systems to ensure the health and performance of the cloud infrastructure

Identify and resolve performance bottlenecks, security vulnerabilities, and other operational issues in the cloud environment

Stay up-to-date with the latest trends, technologies, and best practices in cloud computing, distributed systems, and cyber security

Your Toolkit:

Proven experience as a Cloud Architect or a similar role, designing and implementing cloud-based solutions in a production environment

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

Language and programming requirements

Experience in one or more programming languages: Java, Python

REST API client experience

CloudFormation, Terraform are nice to have

Working knowledge of spring or similar eco systems o Knowledge of Kubernetes and docker containers is good to have

Gang of four design patters

Strong expertise in cloud platforms such as Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP)

In-depth knowledge of Kubernetes and containerization technologies

Built highly scalable distributed system from ground up

Experience with building highly scalable and resilient cloud services

Excellent problem-solving and troubleshooting skills

Strong communication and collaboration abilities

Ability to work in an agile environment and drive initiatives with clarity and purpose

#LI-TD1 #LI-ONSITE

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.

Responsibilities

  • Design and deliver scalable cloud architectures that balance business requirements and technical constraints
  • Collaborate with product, development, and DevOps teams to architect cloud solutions
  • Deploy and manage cloud infrastructure with emphasis on availability, performance, efficiency, and security
  • Select cloud technologies and platforms, including Kubernetes, to meet business needs
  • Optimize systems for fault tolerance and disaster recovery
  • Implement monitoring, logging, and alerting for cloud infrastructure
  • Troubleshoot performance bottlenecks, security vulnerabilities, and operational issues
  • Keep current with developments in cloud computing, distributed systems, and cybersecurity

Qualifications

  • Experience designing and implementing cloud-based solutions in production
  • Experience with AWS, Azure, or GCP, including platform APIs
  • Proficiency in Java or Python and experience with REST API clients
  • Strong expertise in cloud platforms and Kubernetes and containerization
  • Experience building highly scalable, resilient distributed systems and cloud services
  • Excellent troubleshooting, communication, and collaboration skills
  • Ability to work in an agile environment and drive initiatives
  • Networking and security controls experience is a plus

Benefits

  • Medical insurance
  • Dental insurance
  • Vision coverage
  • Health savings accounts
  • Dependent savings accounts
  • Life insurance
  • Disability programs
  • Paid parental leave
  • Voluntary benefit programs
  • Company sponsored wellness program
  • Wellness reimbursement program
  • Retirement savings
  • Equity opportunities
  • Paid time off
  • Paid holidays
  • Employee incentive program

Skills mentioned

AWSMicrosoft AzureGoogle CloudDistributed SystemsKubernetesDockerJavaPythonREST APIsTerraform

About Illumio

Illumio is the leader in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by an 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.

Computer and Network Security501-1,000 employeesSunnyvale, California

H-1B sponsorship history

Historical employer filing data was found for Illumio. The employer record includes 158 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.