Senior DevOps & Platform Engineer - Multi-Cloud SaaS

3M Consultancy is seeking a hands-on Senior DevOps/Platform Engineer to own the full delivery lifecycle of a multi-tenant AI SaaS platform across AWS, Azure, and GCP. You will work on both day-to-day operations and strategic architectural contributions in a multi-cloud environment from Sydney, Australia.

The role requires expertise in Terraform/Terragrunt, Kubernetes (EKS/AKS), ArgoCD, Helmfile, and GitHub Actions, with strong emphasis on security, observability, and scalable SaaS operations.