Job Description
Title: Principal Platform Engineer
Duration: 6 month rolling contract
Location: Sydney (WFH hybrid)
Join the platform team behind one of Australia's largest and most successful businesses - supporting 30 million monthly active users.
This is a hands-on principal role where you'll set technical direction, own the architecture, and still ship code.
The role is split evenly across strategy, architecture and implementation; setting technical direction, owning the platform's architecture, and staying hands-on enough to build reference implementations yourself.
Azure is the primary cloud with a growing GCP footprint, so genuine multi-cloud depth matter.
You must have:
Production Kubernetes at scale — hands-on with both AKS and GKE




Genuine multi-cloud experience — strong Azure plus real GCP
GitOps delivery expertise — Harness GitOps and the Argo suite (ArgoCD, Argo Rollouts, Argo Events)
Infrastructure as Code — Terraform and Crossplane, including landing zone design
Built or run an internal developer platform — Backstage and/or Cortex
Robust production-grade Go and Python — shipping operators and platform services, not just diagrams
Cell-based or microservice architecture in multi-tenant environments
Principal-level track record setting platform strategy and technical direction

📌 Principal Platform Engineer (New South Wales)
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📍 New South Wales