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Salary
≈ $56k – $122k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 7, 2026. Cisco Systems scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Cisco Systems is an American networking company founded in 1984 by Stanford computer scientists Leonard Bosack and Sandy Lerner, and headquartered in San Jose, California. It is the largest supplier of enterprise networking equipment in the world, building the routers, switches, wireless access points and optical systems that carry traffic across corporate networks, service providers and data centres, together with the software and silicon that run them. The company has diversified heavily into security, observability through Splunk, collaboration with Webex, and AI infrastructure networking, and now earns a growing share of revenue from software subscriptions rather than hardware sales.

Please note that we operate a hybrid working model, and this role will require you to work in one of our Engineering hubs 2 days a week.

Meet the Team

Cisco ThousandEyes is a leading Digital Experience Assurance platform that empowers organizations to deliver seamless digital experiences across every network-even those beyond their ownership. Leveraging AI and an unparalleled set of cloud, internet, and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and resolve issues before they impact end-user experiences.

ThousandEyes is deeply integrated across Cisco's extensive technology portfolio, supporting customers in scaling deployments while offering AI-powered assurance insights within Cisco’s Networking, Security, Collaboration, and Observability portfolios.

Your Impact

We are seeking a skilled Site Reliability Engineer (DevSecOps) in Production Engineering with a strong background in SaaS, operations and security. You will design and manage large-scale, highly available distributed systems in the cloud, collaborating directly with application development teams to enhance the reliability, performance, and security of our platform.

Responsibilities

  • Collaborate with software engineers to optimize architecture and services for availability, latency, performance, and reliability using cloud-native tools.
  • Design and implement scalable operations tooling to support platform growth and scaling across multiple regions.
  • Design, deploy, and maintain AWS cloud-native services that are elastic and resilient to failure.
  • Participate in and improve our 24x7 incident response and on-call rotation.
  • Use and expand our existing CNCF solutions like Kubernetes, Service Mesh, Prometheus, OpenTelemetry, and ArgoCD to increase platform reliability.
  • Automate production operations to provide guardrails and continuous platform operation.
  • Develop automation solutions for scalable service and platform operations, including deployment, scale testing, graceful failure, and chaos testing.
  • Stay updated on industry best practices for scalability and reliability to improve the scalability of the ThousandEyes platform.
  • Identify and provide solutions to common obstacles hindering operational excellence across engineering teams.
  • Generalize and standardize solutions and processes to enable repeated success across our microservice-based multi-region platform.
  • Play a key role in the ThousandEyes platform by leveraging scale testing, additional environments, and working with application teams to improve system reliability.
  • Manage a rapidly growing infrastructure capable of handling substantial daily data volumes, emphasizing operations/infrastructure/everything as code.

Minimum Qualifications

  • Hands-on experience deploying, operating, and troubleshooting containerized workloads in production Kubernetes environments.
  • Professional experience diagnosing and administrating Linux/Unix systems, including process management, file systems, and networking protocols (TCP/IP, DNS, HTTP).
  • Professional experience developing automation tooling, operational scripts, or backend services using Python or Go.
  • Practical experience building hardened container images and integrating automated security scanning tools (SAST, DAST, or container vulnerability scanners) into CI/CD pipelines.

Preferred Qualifications

  • Familiarity with best practices for operating a large-scale, highly available enterprise platform.
  • 3+ years of experience in a related role.
  • Excellent communication and documentation skills.
  • Strong sense of ownership, drive, and attention to detail.

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.

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