Site Reliability & Observability Engineer – Datadog / Azure

Site Reliability & Observability Engineer / Datadog – Synthetic Monitoring, APM, RUM, Log Management, SLO’s, Alerting / Azure / Azure DevOps / Cloudflare / 6-month contract / Hybrid – West Midlands / Remote / £450 – 600 per day Inside IR35. One of our leading clients is seeking a Lead Site Reliability & Observability Engineer to build and operate a world-class monitoring, synthetic testing, and reliability platform. Location – West Midlands / Remote – 5 days per week with 1-2 days per week onsite Duration – 6 months + Day rate – £450 – 600 per day Inside IR35 This role will lead the implementation of Datadog across Azure and Cloudflare, creating a comprehensive early warning system that continuously validates APIs, integrations, and customer user journeys in production. Key Responsibilities: Own and evolve the Datadog observability platform. Design and maintain synthetic monitoring for critical API and UI workflows. Build continuous production validation covering business-critical customer journeys. Integrate monitoring, testing, dashboards, and alerting into Azure DevOps and GitHub pipelines. Develop monitoring-as-code and testing-as-code practices using Terraform. Create actionable dashboards, SLOs, SLIs, alerts, and anomaly detection. Integrate Datadog with Azure, Cloudflare, and modern SaaS architectures. Drive reliability, performance, and root-cause analysis across production systems. Required Experience: Strong hands-on Datadog expertise, including: Synthetic Monitoring APM RUM Log Management SLOs and Alerting Experience operating large-scale global SaaS platforms. Deep Azure experience. Experience integrating Cloudflare services. Strong CI/CD experience with Azure DevOps and GitHub. Expertise in API, integration, and browser-based testing. Infrastructure as Code experience using Terraform. Experience with distributed systems, microservices, and cloud-native architectures. Desirable: Datadog certifications. Azure certifications. Cloudflare administration experience. Background in Site Reliability Engineering (SRE) or Platform Engineering leadership roles.