Quadrant Travel Technology is a Spanish travel-tech company building the digital backbone for independent travel agencies. As part of the SRE/DevOps team, we designed and built the cloud infrastructure, deployment automation, and operational reliability platform from the ground up — running on AWS EKS across multiple isolated environments, with full IaC via Terraform and Terragrunt, GitOps via ArgoCD, and centralized CI/CD pipelines on GitLab.

My Role & Responsibilities

• Built multi-environment AWS infrastructure from scratch using IaC with Terraform and Terragrunt — networking, compute, databases, messaging, and security layers all versioned and reproducible.
• Implemented a GitOps platform with ArgoCD, managing containerized workloads across all environments with automated reconciliation and drift detection.
• Built centralized GitLab CI pipeline templates — security scanning, Docker builds, registry pushes, and automated multi-environment deployments.
• Integrated HashiCorp Vault with ArgoCD for zero-secret-in-Git secret management across the full application surface.
• Led the migration from Cluster Autoscaler to Karpenter — mixed spot/on-demand node pools with HPA-driven pod scaling and PodDisruptionBudgets for zero-downtime deployments.
• Deployed and maintained the full observability stack: Prometheus, Grafana, Loki, Jaeger, and OpenTelemetry.
• Managed Aurora PostgreSQL with read replicas and RDS Proxy for connection pooling in production.
• Operated Kafka for domain event streaming and Kong API Gateway for internal and external traffic routing.
• Authored runbooks, incident response playbooks, and operational documentation for the engineering org.

Tech Stack

AWS · EKS · Terraform · Terragrunt · Kubernetes · ArgoCD · GitLab CI · HashiCorp Vault · Docker · Karpenter · Prometheus · Grafana · Loki · Jaeger · OpenTelemetry · Kong · Apache Kafka (MSK) · Aurora PostgreSQL · ElastiCache Redis · Jenkins

Key Outcomes

Built a production-grade, highly available cloud platform on AWS from scratch — reliable by design, scalable on demand, and secure at every layer. Eliminated infrastructure drift through a fully declarative GitOps and IaC approach — every resource versioned, reviewed, and automatically reconciled. Led the migration from Cluster Autoscaler to Karpenter, achieving elastic node provisioning with mixed spot/on-demand pools and consistent cost efficiency. Resilience enforced across zones via multi-AZ deployments, HPA-driven pod scaling, and PodDisruptionBudgets for zero-downtime releases. Full secrets surface secured with HashiCorp Vault.