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# Principal Observability & Cloud Platform Engineer

- **Company:** 17918
- **Location:** Cambridge, UK
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, ARM Architecture, Cloud Computing, Distributed Computing Environment, Python (Programming Language), Open Source Technology, Prometheus, Parquet, Cloud Platform System, Istio, Grafana, Multi-Cloud, Kubernetes, Low Latency, Free and Open-Source Software, Terraform
- **Published:** July 30, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/42357002/

## About the Role

watched it run. Depth across the open-source observability stack: Prometheus, Grafana, and large-scale metrics (Thanos, Mimir, Cortex or VictoriaMetrics) logs (Loki / ELK / OpenSearch) traces (Tempo). Kubernetes at multi-cluster scale, service mesh (Istio / Envoy), Terraform, and AWS and/or GCP. A track record of evolving storage and query architectures (TSDB, Parquet, distributed processing) for cost, scale and latency. Nice to have: OpenTelemetry / OpenMetrics standards work, CNCF open-source contributions, security-in-platform experience, and using AI tooling to cut toil. TPBN1_UKTJ

## Description

Principal Observability & Cloud Platform Engineer Most observability engineers run someone else's stack. This role is for the person who builds it. Our client is re-architecting observability and cloud infrastructure at a scale very few engineers ever touch: a 3,000-node Kubernetes estate, 50TB of logs a day (around 600k logs/second) and up to 80 million active time-series, running multi-region and multi-cloud across AWS and GCP. You'll own the architecture: metrics, logs, traces, telemetry pipelines, service mesh and developer experience for thousands of services and millions of devices. You'll overhaul core open-source components, storage layers, query paths for performance, cost and reliability, and push improvements back upstream to CNCF projects. This is hands-on architecture, not stack-sitting. What you'll need: Strong, hands-on Go in production, plus Python or Shell. Real scale: PB-level ingestion and hundreds of millions of active series, and you built or scaled it, not just


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