Principal Platform Engineer
Summary
Hands-on principal engineer on the platform team for a high-scale Australian business (30M MAU), splitting time evenly between strategy, architecture, and implementation. Sets technical direction and owns the platform architecture while still shipping code in Go and Python, with core stack spanning Azure and GCP, AKS/GKE, Terraform, Crossplane, ArgoCD, Harness, and Backstage/Cortex.
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:
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
- Strong 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