Senior Site Reliability Engineer

Posted 7 Days Ago
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London, Greater London, England, GBR
In-Office
Senior level
Cloud • Information Technology • Internet of Things • Professional Services • Software
The Role
Own the design, testing, delivery, and governance of Kubernetes-based microservices configurations. Build reusable Helm-based configurations, manage GitOps deployments with Argo CD, implement progressive delivery, autoscaling, resiliency, secrets management, observability, and disaster recovery. Improve platform self-service through Backstage while ensuring secure, compliant, and reproducible deployments across development, staging, and production environments.
Summary Generated by Built In
Meet the Team

Cisco's Webex Engineering Group is redefining the future of collaboration. We're building a world where people connect effortlessly to enjoy modern, uncompromised collaboration across every room, desk, pocket, and application.

Our technology powers industry-leading products like Webex Meetings, Webex Calling, and Webex Contact Center. As a member of our team, your work will ensure every user gets a truly immersive experience regardless of device or location, empowering the hybrid working patterns of the future.


Our team is based in one of our central London offices, near Moorgate Street station. We operate a hybrid working model, meeting to collaborate in the office three times a week.

Your Impact
  • Full Lifecycle Development: Own the design, codification, testing, and delivery of Kubernetes-based microservices configurations (Deployments, Services, Ingress, ConfigMaps) using Kubernetes, Helm. Build reusable base configs with environment overlays and enable safe promotion across dev, staging, and production.
  • DevOps & Microservices: Drive operational perfection in a GitOps model using Argo CD. Implement progressive delivery (canary releases, validation gates), codify autoscaling and resiliency, and manage secure secrets via HashiCorp Vault and Kubernetes Secrets.
  • Embrace AI technology: Use AI-assisted tools to accelerate development, validation, and optimization of configuration-as-code, improving delivery speed and reducing deployment risk.
  • Adaptable & Problem-Solver: Address complex challenges across configuration, policy, observability, and data services. Apply a data-driven approach using Prometheus and Grafana to improve reliability and performance.
  • Ownership & Quality: Own end-to-end configuration quality, enforcing governance with Open Policy Agent. Ensure secure, compliant deployments and full reproducibility, including backup, restore, and disaster recovery.
  • Support & Growth: Advance a self-service platform using Backstage and Argo CD, enabling teams to deploy via declarative configs while promoting standard processes and continuous improvement.
Minimum Qualifications:
  • Analytical Degree or equivalent experience: Bachelor's or higher degree in an analytical subject (e.g. Computer Science, Electronic/Software Engineering).
  • Work experience: 8+ Years demonstrated experience in software development.
  • Coding Aptitude: Extensive architecture and programming experience and the willingness to learn new technologies quickly.
  • Strong Kubernetes + microservices experience
  • Experience with GitOps (CI/CD)
Preferred Qualifications:

Any of the following skills would be particularly advantageous, but we encourage applications without these:

  • Hands-on with Helm or Kustomize
  • Experience with GitOps (e.g., Argo CD)
  • Knowledge of secrets management (e.g., HashiCorp Vault)
  • Experience with observability (metrics/logs/tracing)
CollabHiringWhy 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. 

Skills Required

  • Bachelor’s degree or higher in an analytical subject such as Computer Science or Electronic/Software Engineering, or equivalent experience
  • 8+ years of demonstrated experience in software development
  • Extensive architecture and programming experience
  • Strong Kubernetes and microservices experience
  • Experience with GitOps and CI/CD
  • Hands-on experience with Helm or Kustomize
  • Experience with GitOps tools such as Argo CD
  • Knowledge of secrets management tools such as HashiCorp Vault
  • Experience with observability, including metrics, logs, or tracing

Cisco Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Cisco and has not been reviewed or approved by Cisco.

  • Healthcare Strength — Health coverage is described as broad, with medical options including PPOs, high-deductible plans, and regional HMOs. Feedback suggests robust wellness and mental-health resources, with some locations offering on-site support and second medical opinions.
  • Leave & Time Off Breadth — Time off is highlighted through paid holidays, paid time off, and additional recharge days such as “Days for Me,” with generous volunteer time also mentioned. Feedback suggests these programs help support rest, volunteering, and critical life events.
  • Parental & Family Support — Parental and family support appears extensive, including paid child-bonding leave, family medical leave, and caregiving resources. Observations also point to family-planning assistance and adoption or surrogacy support in some regions.

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The Company
HQ: San Jose, CA
77,500 Employees
Year Founded: 1984

What We Do

Cisco (NASDAQ: CSCO) enables people to make powerful connections--whether in business, education, philanthropy, or creativity. Cisco hardware, software, and service offerings are used to create the Internet solutions that make networks possible--providing easy access to information anywhere, at any time. Cisco was founded in 1984 by a small group of computer scientists from Stanford University. Since the company's inception, Cisco engineers have been leaders in the development of Internet Protocol (IP)-based networking technologies. Today, with more than 71,000 employees worldwide, this tradition of innovation continues with industry-leading products and solutions in the company's core development areas of routing and switching, as well as in advanced technologies such as home networking, IP telephony, optical networking, security, storage area networking, and wireless technology. In addition to its products, Cisco provides a broad range of service offerings, including technical support and advanced services. Cisco sells its products and services, both directly through its own sales force as well as through its channel partners, to large enterprises, commercial businesses, service providers, and consumers.

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