Cloud Network Engineer
On-siteLondon, England, United Kingdom
Job Summary
Architect and operate the Azure and AWS network as the company expands into new regions, designing network security for agentic workloads including isolation, segmentation, and egress control. Build cluster networking for a fast-growing Kubernetes fleet and define network infrastructure as code with Terraform. Support and harden Azure Entra ID integration while leveraging AI for anomaly detection, alerting, and automated runbooks. Partner with the Kubernetes and product engineering teams to lead deep dives on complex networking issues. This role sits at the center of the Cloud Platform Engineering team, shaping secure, multi-region cloud networking for regulated clients as Celeste scales.
Required Qualifications
- 2+ years on Azure
- AWS a plus
- cloud networking as a core strength
- Deep networking fundamentals — DNS, routing, firewalls, segmentation, and VNet/VPC
- Experience designing cloud network security and zero-trust controls
- Hands-on Kubernetes networking — CNI, ingress/egress, and network policies
- Identity and authentication experience, such as Azure Entra ID / AD
- Comfortable using AI tooling in an engineering or operations context
- Automation-first — you write it, not just read it
Desired Qualifications
- Scaling networks across multiple regions or a large Kubernetes fleet
- Service mesh — Istio, Linkerd, or Cilium — and east-west policy control
- AWS networking alongside Azure
- Prometheus, Grafana, or similar observability tooling
- Securing AI, ML, or agentic workloads at the network layer
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