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rtmuller/README.md

Hi, I'm Rafael Muller

Staff Cloud Engineer @ Airbnb — Architecting platform infrastructure for 8M+ listings worldwide. Focused on Kubernetes, Service Mesh, and large-scale reliability.

18 years in tech · 7+ years deep in cloud & platform engineering · based in Brazil, working globally.


What I do

  • Kubernetes & Service Mesh at hyperscale — designing, operating, and evolving multi-cluster platforms
  • Cloud architecture on AWS and GCP — Solutions Architect Professional mindset, hands-on operator
  • Infrastructure as Code with Terraform — modules, patterns, and governance across large estates
  • Observability — Prometheus, Grafana, SLO/SLI-driven reliability
  • CI/CD — GitHub Actions, GitLab CI, Spinnaker
  • FinOps & Security — cost efficiency and cloud security as first-class concerns

Tech I use daily

AWS GCP Kubernetes Terraform Prometheus Grafana Istio Spinnaker GitHub Actions Python Go

Writing & Teaching

I publish technical articles on Medium, each paired with a reproducible lab repo when applicable.

Certifications

  • CKA — Certified Kubernetes Administrator · The Linux Foundation
  • AWS Certified Solutions Architect – Professional
  • HashiCorp Certified: Terraform Associate (003)
  • AWS Certified Solutions Architect – Associate
  • AWS Certified SysOps Administrator – Associate
  • AWS Certified Developer – Associate
  • AWS Black Belt 3.0 – Security

Let's connect

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  1. gcp-vm-manager gcp-vm-manager Public

    Interactive CLI for managing GCP VMs and Cloud Run instances — Python, with unit tests, coverage and CI.

    Python

  2. observability-reliability-lab observability-reliability-lab Public

    Hands-on lab demonstrating observability reliability patterns: meta-monitoring, chaos scenarios, Watchdog, absent() rules.

    Shell

  3. terraform-basics terraform-basics Public

    Hands-on Terraform starter lab — provisioning AWS resources. Companion to a Medium article.

    HCL

  4. terraform-multi-providers terraform-multi-providers Public

    Terraform lab using multiple AWS providers across regions. Companion to a Medium article.

    HCL

  5. terraform-workspaces terraform-workspaces Public

    Terraform lab demonstrating workspaces CLI for multi-environment deployments. Companion to a Medium article.

    HCL