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Azure Principal Platform Engineer

United Kingdom; Spain, Greater London · Job Posted May 20, 2026
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Job Description

As an Azure Principal Platform Engineer, you will act as the authoritative Subject Matter Expert (SME) to help a major fintech architect, bootstrap, and build from scratch an enterprise-grade, multi-tenant AKS platform on a greenfield Azure landing zone. Crucially, you will guide the establishment of an internal platform team, designing the platform operating model and upskilling in-house engineers along the way. You will also collaborate to upskill the in-house team along the way.

Job Responsibility

  • Architect and Bootstrap: Design and provision a greenfield, highly-scalable, multi-tenant AKS platform from the ground up (focusing on underlying cluster architecture, not just workload deployment)
  • Act as the Kubernetes Reference (SME): Serve as the authoritative internal expert for the vast Kubernetes ecosystem, filling a critical knowledge gap and guiding long-term architectural direction
  • Establish a Platform Operating Model: Help structure and establish an Internal Developer Platform (IDP), defining how the new platform team will interact with and empower developer teams through self-service capabilities
  • Upskill and Mentor: Transition the in-house engineering team into a high-performing internal platform team throughout the platform build process
  • Observability: Design and implement enterprise-grade logging, metrics, and tracing for Kubernetes at scale
  • IaC Leadership: Implement and manage Infrastructure as Code to a senior standard, taking charge of state strategy, module design, and drift management

Requirements

  • Recent, hands-on experience operating multi-cluster AKS in production environments, either multi-region or multi-tenant
  • Proven experience building and architecting complex Kubernetes platforms from scratch
  • Experience with Kubernetes platform engineering, including ingress and service mesh, OPA / Gatekeeper policy, secrets management, and progressive delivery
  • Strong security awareness, displaying comfort with CAF / ALZ patterns, least-privilege IAM, network segmentation, and policy-as-code
  • Experience working with regulated or financial services workloads on Azure
  • FinOps instincts for managing AKS and networking costs effectively

Nice to have

  • Spacelift, Atlantis, or Terraform Cloud
  • EPAC (Enterprise Policy as Code)
  • OpenTelemetry

What we offer

  • The chance to join an organization with triple-digit growth that is changing the paradigm of how software products are built
  • The opportunity to form part of an amazing, multicultural community of tech experts
  • A highly competitive compensation package
  • A flexible working environment
  • Medical insurance

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