Nicolas Andres Calvo

• ● Migrated 30+ services from EC2 with Docker/Compose to Amazon EKS (Helm + ArgoCD), delivering more reliable and automated deployments.

• ● Developed reusable Terraform modules and serverless infrastructure, enabling scalable multi-environment provisioning.

• ● Achieved >50% cost savings (~$10k–15k per month) through rightsizing and architecture optimization.

• ● Implemented GitOps with ArgoCD, introducing declarative application deployments and automated rollouts, ensuring consistency across all environments.

• ● Implemented self-hosted data platforms (Airflow, Metabase, Superset, n8n) on Kubernetes, supporting 30+ analysts and engineers.

• ● Migrated 50+ CloudFormation stacks to Terraform, increasing automation consistency and enabling modular, reusable infrastructure across multiple AWS accounts.

• ● Replaced dozens of OpenShift (on AWS) YAML templates with Helm charts, standardizing Kubernetes deployments and accelerating release cycles.

• ● Consolidated CI/CD pipelines by migrating from Tekton and Jenkins to AWS CodePipeline, reducing maintenance overhead and aligning delivery with cloud-native best practices.

• ● Introduced GitOps with ArgoCD, operating 5 Kubernetes clusters (one per environment) with declarative deployments and progressive rollouts.

• ● Enhanced observability with Prometheus, Grafana, and InfluxDB, improving system visibility and strengthening incident response.

• ● Designed and built AWS infrastructure for a third-party application acquired by the company, creating everything from scratch with Terraform and Terragrunt. Developed the first EKS module, provisioned core services (App Mesh, API Gateway, DynamoDB, CloudFront, Lambda, S3), and scaled the platform to support hundreds of thousands of monthly transactions.

• ● Introduced the company's first Amazon EKS cluster for a card management product, migrating third-party services previously running on EC2 with Docker into Kubernetes. Defined internal standards, designed the Terraform EKS module, and delivered the supporting infrastructure in an organization that had relied exclusively on serverless.

• ● Replaced Jenkins-based Terraform CD with Atlantis, introducing a PR-driven workflow where plans were executed on pull requests and applies triggered on merge, enabling collaborative and auditable IaC operations.

• ● Implemented monitoring and alerting with Amazon CloudWatch for EKS workloads and core AWS services, improving observability and enabling proactive incident response.