Senior Site Reliability Engineer
Posted 31 Jul 2026
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 8+ yrs
- Management level
- Individual contributor
- Employment
- Hybrid
- Contract
- Full-time
No salary listed for this role.
No unique specialisation
Field of studyElectronic Engineering, Computer Science, Software Engineering (or related)
Study levelBachelor's
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.