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:

o Synthetic Monitoring

o APM

o RUM

o Log Management

o 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.