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Caio Barbieri · Senior SRE · Cloud & Platform

Resume

SRE / Cloud professional with 4+ years of experience in DevOps, Kubernetes and infrastructure automation. Works across AWS platforms, GitOps and developer tooling, with hands-on experience in observability, cloud security and incident response in client environments. AWS Certified Security – Specialty and Solutions Architect – Associate.

Experience

  1. Aug 2025 — present

    1 yr 3 mos

    Opsteampresent

    1. Site Reliability Engineer (SRE) | Cloud Engineer

      Aug 2025 — present · 1 yr 3 mos

      SRE and cloud consulting for client environments, covering infrastructure, developer platforms, observability and security.

      • Migrated self-hosted GitLab and its CI runners to Amazon EKS, including controlled upgrades, S3 integration and post-migration validation of 131 projects and CI/CD pipelines.
      • Upgraded 13 Kubernetes clusters across development, staging, production and shared services, including Karpenter and node pool updates.
      • Implemented AWS platform foundations with Terraform and EKS, including shared services, private connectivity and environment isolation.
      • Built reusable Terraform modules, Helm charts and Backstage templates, with GitOps and CI/CD workflows using Argo CD, GitHub Actions and GitLab CI.
      • Centralized logs from 2 AWS regions in Loki on EKS, integrating CloudWatch/Kinesis and ECS FireLens; migrated Grafana dashboards and tuned alerts.
      • Strengthened least-privilege IAM controls, federated access and CI/CD authentication with OIDC. Investigated and contained incidents through log analysis, resource isolation and evidence preservation.
      • Built internal tools for tenant isolation, access governance and AI-assisted pull request review; validated JIT access and WebAuthn pilots in development.
      • Delivered efficiency improvements with gp3 EBS volumes and removal of unused infrastructure; produced architecture and cost assessments.
  2. Feb 2022 — Aug 2025

    3 yrs 7 mos

    Vertigo Tecnologia

    1. Senior DevOps Analyst

      Jun 2025 — Aug 2025 · 3 mos

      • Led the technical delivery of a cloud-native platform foundation, from architecture to implementation, with reusable infrastructure-as-code templates and Argo CD.
      • Integrated Keycloak and Backstage and implemented centralized observability across Kubernetes clusters on AWS and Oracle Cloud.
    2. Mid-level DevOps Analyst

      Sep 2024 — Jul 2025 · 11 mos

      • Built infrastructure automation and CI/CD pipelines for clients, plus templates, plugins and customizations for the internal VeeCode platform.
      • Implemented observability solutions and AI-powered tools for operational workflows, while working in DevOps consulting.
    3. Junior DevOps Analyst

      Oct 2022 — Sep 2024 · 2 yrs

      • Implemented monitoring with Grafana, Prometheus, Loki and Alertmanager, routing alerts to Microsoft Teams.
      • Built Terraform automation, Helm charts, Dockerfiles and Bamboo / Shell pipelines for Node.js applications.
      • Administered HashiCorp Vault, Consul, Redis and RabbitMQ and implemented least-privilege controls on AWS.
    4. DevOps Intern

      Feb 2022 — Oct 2022 · 9 mos

      • Automated the migration of 200+ repositories from GitLab.com to self-hosted GitLab in about an hour, using Python and the GitLab API.
      • Deployed GitLab on DigitalOcean Kubernetes with Helm, customized deployment templates, built CI/CD pipelines and containerized applications.

Skills

Cloud & infrastructure
  • AWSEKS · ECS · EC2 · VPC · S3 · RDS · KMS
  • Oracle Cloud
  • DigitalOcean
Containers & IaC
  • Kubernetes
  • Docker
  • Terraform
  • Helm
  • Karpenter
Delivery & platforms
  • CI/CD
  • GitOps
  • Argo CD
  • GitHub Actions
  • GitLab CI
  • Backstage
Observability
  • Grafana
  • Prometheus
  • Loki
  • VictoriaMetrics
  • CloudWatch
  • Alertmanager
Security
  • IAM
  • OIDC
  • SSO
  • Keycloak
  • HashiCorp Vault
  • Network segmentation
  • Incident response
Automation
  • Python
  • Go (Golang)
  • Bash / Shell
  • Linux

Certifications