Open to opportunities

Jon Castander

@joncastander

Message

I build resilient cloud infrastructure, automate delivery, and reduce platform costs at scale.

Spain

Message

What I'm looking for

I'm looking for opportunities to build resilient cloud platforms, automate infrastructure and delivery, improve observability, and reduce operational overhead and costs. I'm open to relocation.

I've led DevOps at Swap Energia, migrating 20+ services from AWS to Azure and managing Kubernetes clusters, virtual machines, and 20+ GitLab CI/CD pipelines. I also replaced 40+ GitHub Enterprise licenses with self-hosted GitLab, saving roughly $10,000 annually.

I build infrastructure that is repeatable, observable, and resilient. At Swap Energia, I provisioned a 70+ VM fleet with Ansible, codified GitLab and HashiCorp Vault with Terraform, migrated Kafka to AKS with Strimzi, and built Prometheus, Promtail, and Grafana observability across 50+ services.

Previously, I integrated e-commerce into Terraform-managed GCP infrastructure, reduced MySQL storage from 3TB to about 300GB through a MongoDB migration, and rewrote legacy PHP services in Go to cut product configuration deployment time by 98%. My background also includes full-stack development, backend APIs, Salesforce automation, and on-premises infrastructure.

Experience

Work history, roles, and key accomplishments

Current

Head of DevOps

Current

Swap Energia

Aug 2025 - Present (1 year 2 months)

Migrated 20+ services from AWS to Azure, deployed and managed Kubernetes clusters and VMs, and provisioned a 70+ VM fleet with Ansible. Implemented observability with Prometheus and Grafana, and designed a multi-cloud disaster recovery strategy.