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# Staff Site Reliability Engineer

- **Company:** Obsidian Security
- **Location:** Manchester, UK
- **Experience:** Experienced
- **Salary:** £124,000.0 - £141,000.0
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Software as a Service, Continuous Integration, Distributed Systems, Reliability Engineering, Prometheus, Grafana, Gitlab-ci, Kubernetes, Legacy Systems
- **Published:** August 30, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815108764-staff-site-reliability-engineer

## About the Role

* 5+ years in SRE, Production Engineering, or related roles
 * 3+ years operating at a senior or technical leadership level (Staff or equivalent scope)
 * Deep expertise in:

 * AWS and/or GCP
 * Kubernetes and Helm
 * Observability stacks (Prometheus, Grafana, or equivalent)
 * CI/CD systems (GitLab CI/CD, ArgoCD, etc.)

Proven experience designing and scaling reliability systems for multi-tenant SaaS platforms

Strong debugging and systems thinking across distributed microservices and legacy systems

Demonstrated ability to lead initiatives that improve incident detection, response, and system resilience

Hands-on engineering approach with a track record of building-not just configuring-reliability systems, * Experience in B2B SaaS serving enterprise or financial customers

 * Familiarity with third-party SaaS connector architectures and ingestion patterns
 * Experience building anomaly detection or intelligent alerting systems
 * Experience designing customer-facing status pages and incident communication frameworks

## Description

Your core mandate: ensure Obsidian detects, diagnoses, and communicates system issues before customers are impacted-consistently and predictably. This is a hands-on technical role that involves architecting and leading the implementation of systems that handle real-world complexity, including upstream SaaS dependencies, sparse and noisy signals, and mission-critical enterprise workloads., * Reliability Strategy & Architecture - Define and lead long-term reliability strategy across services. Establish end-to-end system visibility frameworks and guide architecture for observability, detection, and resilience.

 * Cross-Org Leadership - Partner across teams to embed reliability, standardize SLI/SLOs, and serve as a technical escalation expert.
 * Detection & Observability - Build intelligent detection systems (anomaly detection, connector health models) and enable self-service observability.
 * Incident Management - Define and evolve a tiered incident communication strategy, improve response practices, and lead postmortems to strengthen reliability and customer trust.
 * Execution - Contribute hands-on to system design, monitoring, and debugging across distributed systems and data pipelines.


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