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FRANCESC CASTELL
— STACK

Tools I reach for.

The technology I use to design, ship, and operate infrastructure. I prefer fewer tools used well over many tools used poorly.

01

Cloud

AWS (EC2 · VPC · IAM · S3 · Lambda · ALB · WAF · Route 53 · CloudFront · CloudWatch · SSM · KMS · GuardDuty · Organizations) Azure
02

LLMOps & AI

Amazon Bedrock MCP (Model Context Protocol) RAG (Retrieval-Augmented Generation) Ollama Qdrant LangChain Redis n8n
03

Programming Languages

Python Bash TypeScript Go HCL
04

Infrastructure as Code

Terraform Packer AWS CDK Homer CLI
05

CI/CD & Automation

GitHub Actions AWS CodeBuild n8n Jira Git
06

Observability & Monitoring

Grafana Centreon CloudWatch New Relic X-Ray
07

Security & Compliance

ENS AWS WAF · GuardDuty · KMS · Secrets Manager Tailscale
08

Networking & Infrastructure

Cisco IOS · ASA VLAN · 802.1Q VPN Proxmox Docker FastAPI