Site Reliability Engineer

Meet The Team

The Site Reliability Engineering (SRE) team at Duo, a part of Cisco, plays a crucial role in maintaining the reliability, availability, and performance of Duo's security services. The team is responsible for evaluating the scalability, resiliency, and security properties of production environments to ensure services meet internal Service Level Objectives (SLOs) and customer-facing Service Level Agreements (SLAs).

By implementing robust monitoring and alerting systems, the team proactively detects issues and leads incident management efforts to resolve outages swiftly. Beyond immediate resolution, the team focuses on long-term reliability by investigating incidents, implementing remediation strategies, and conducting Disaster Recovery drills to ensure resilient incident processes.

The SRE team continuously optimizes service performance and collaborates with development teams to ensure new features are designed with scalability in mind, while determining security requirements to meet the objectives of the company, customers, and relevant governmental agencies. Through the development of automation tools, acceleration techniques, and analytical tools, the team reduces operational expenses and identifies potential issues early in the product lifecycle. By conducting rigorous post-incident reviews and implementing preventive measures, the SRE team ensures Duo's solutions remain dependable, secure at every layer, and high-performing to meet user expectations.

Your Impact

As a Site Reliability Engineer on our team, you will develop software and tools to empower Duo's product development teams to run and maintain their services in production.

You will

• Collaborate with internal partners and peer stakeholders to engineer automated solutions that remove toil, enhance stability, and ensure scalability across various infrastructure.
• Apply an engineering mindset to build automation and operational tooling that enable fast, reliable releases, including automated roll-backs and zero-downtime deployments.
• Work across infrastructure and automation areas to improve service reliability and adapt services across regions.
• Test high availability and disaster recovery measures to minimize single points of failure and monitor resources to gauge scalability.
• Contribute to the design and implementation of new tools, frameworks, and automation toolsets to solve complex operational challenges.
• Take ownership of tasks, collaborate on effective solutions, and support less experienced colleagues as a technical resource.
• Participate in a rotating on-call SRE schedule, troubleshoot production and security issues, and collaborate across time zones on incident reviews and reliability improvements.

Minimum Qualifications:

• Bachelors + 5 years of related experience, or Masters + 3 years of related experience, or PhD + 0 years of related experience.
• 4+ years of Python development.
• 3+ years of experience with public cloud platforms (AWS preferred) and SaaS solutions.
• 2+ years in Site Reliability Engineering (SRE) or a related IT field.
• Experience with infrastructure as code, especially Terraform.
• Experience with Container Orchestration including Kubernetes and Docker.
• Proficiency using AI coding agents, with the judgment to verify outputs for correctness and security.
• Demonstrates strong ownership, proactively identifies reliability improvements, and collaborates effectively across engineering teams.

Preferred Qualifications

• Experience operating Kubernetes with kubectl, Helm, Kustomize, and Argo CD.
• Design and own secure cloud solutions following best practices for least-privilege access, encryption, and defence in depth.
• Prior experience deploying Cloud Services, Monitoring, Alerting, and production incident response.
• Familiarity with disaster recovery, security controls, or multi-region infrastructure.

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.