Lead Site Reliability & Observability Engineer

Salary: £? - ? per year

Requirements:

• Strong hands-on Datadog experience across Synthetic Monitoring, APM, RUM, Log Management, SLOs, and alerting
• Deep Azure experience and experience integrating Cloudflare services
• Experience operating large-scale production environments
• Strong CI/CD experience with Azure DevOps and GitHub
• Expertise in API, integration, and browser-based testing
• Terraform experience and a strong understanding of distributed systems and microservices
• A background in SRE or Platform Engineering leadership
• Datadog or Azure certifications and Cloudflare administration experience are advantageous

Responsibilities:

• Lead the implementation of Datadog across Azure and Cloudflare
• Build synthetic monitoring and automated production validation for critical APIs, integrations, and customer journeys
• Own and evolve our Datadog observability platform
• Design synthetic monitoring for critical API and browser workflows
• Integrate monitoring, testing, and release validation into Azure DevOps and GitHub pipelines
• Develop monitoring-as-code and testing-as-code using Terraform
• Create actionable dashboards, SLOs, SLIs, alerts, and anomaly detection
• Drive reliability improvements, performance investigations, and root-cause analysis

Technologies:

• API
• Azure
• CI/CD
• Datadog
• DevOps
• GitHub
• Terraform
• microservices
• Cloud

More:

Were recruiting a Lead Site Reliability & Observability Engineer for a contract opportunity based in Birmingham, initially for six months. The rate is up to £575 per day, inside IR35, with hybrid working that includes two days on-site per week. The role focuses on improving observability and production validation so issues can be identified within minutes of a software release.

last updated 41 week of 2026