Sr. Site Reliability Engineer

Illumio; Sunnyvale (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Illumio is seeking a Senior Site Reliability Engineer to enhance reliability and performance in their cloud-based systems in Sunnyvale, California. The ideal candidate will have over 5 years of experience in managing AWS and Azure infrastructures, a strong passion for automation, and skills in CI/CD practices. Responsibilities include monitoring systems, leading incident responses, and implementing security measures. Join Illumio to shape the future of cybersecurity with innovative cloud-native solutions.

Qualifications

• 5+ years of experience working as a Site Reliability Engineer (SRE) or similar role.
• Hands-on experience in managing AWS and/or Azure infrastructure.
• Strong analytical, problem-solving, and communication skills.

Responsibilities

• Monitor system performance and application health.
• Lead incident response and resolution efforts.
• Implement security best practices in cloud environments.

Skills

AWS cloud platform

Azure cloud platform

Scripting in PowerShell

Python programming

CI/CD principles

Education

Bachelor’s degree in computer science, Engineering, or related field

Tools

Docker

Kubernetes

Azure DevOps

Jenkins

GitLab CI/CD

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 shaping the future of cybersecurity. We thrive on visionary leadership, autonomy, and ownership, fostering a culture of innovation that propels us forward in the ever‑evolving cybersecurity landscape.

As a leader in Zero Trust Segmentation, we are redefining security for a world facing unprecedented cyber threats. You’ll work with a highly scalable SaaS service built using cloud‑native technologies while simultaneously shipping the solution on‑premises.

Our guiding philosophy in Engineering is to get things right through practicing disciplined engineering, focusing, not cutting corners, and of course having fun while we are at it. We believe in enabling ownership at all levels of the organization and empowering teams. If you thrive in this culture, come join us!

Your Impact:

We are looking for an experienced Senior Site Reliability Engineer (SRE) with a strong background in AWS & Azure cloud platforms to play a key role in ensuring the reliability, scalability, and performance of our cloud‑based systems and applications.

The ideal candidate will have hands‑on experience in supporting, and managing AWS and Azure infrastructure, along with a passion for automation, continuous improvement, and collaboration with cross‑functional teams.

If you are passionate about AWS and/or Azure cloud platform and have a track record of driving reliability, scalability, and performance in cloud‑based environments, we’d love to hear from you.

• Monitor system performance, application health, and infrastructure metrics using monitoring and logging services, and implement proactive measures to optimize performance and availability
• Oncall duty for production uptime and support for customer escalations
• Release upgrades and maintenance activities including hotfixes and infrastructure updates
• Lead incident response and resolution efforts, conducting root cause analysis, implementing corrective actions, and documenting post‑incident reviews
• Implement security best practices and controls in the cloud environments to protect data, applications, and infrastructure, and ensure compliance with regulatory requirements
• Drive continuous improvement initiatives to enhance reliability, scalability, and efficiency of infrastructure and services, leveraging automation and emerging technologies

Your Toolkit:

• Bachelor’s degree in computer science, Engineering, or related field; or equivalent work experience
• 5+ years of experience working as a Site Reliability Engineer (SRE) or similar role, with a focus on AWS and/or Azure cloud platform
• Hands‑on experience in designing, deploying, and managing AWS and/or Azure infrastructure, including compute, storage, networking, and security services
• Proficiency in scripting and programming languages such as PowerShell, Python, or Go for automation and infrastructure management tasks
• Strong understanding of CI/CD principles and experience with tools such as Azure DevOps, Jenkins, or GitLab CI/CD
• Experience with containerization technologies (e.g., Docker, Kubernetes) and microservices architecture in AWS and Azure environments is a plus
• Excellent analytical, problem‑solving, and communication skills, with the ability to collaborate effectively with cross‑functional teams
• AWS or Azure certifications such as AWS/Azure Solutions Architect, Azure DevOps Engineer, or Azure Security Engineer are preferred

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.