# Carlos Castillo > Senior Cloud Engineer (Redfin). Remote, based in Dallas. AWS, Terraform/OpenTofu, Spacelift, CloudFront/WAF/Lambda@Edge, EKS/Istio. This site is a portfolio + notes home. This file follows the llms.txt convention (https://llmstxt.org/) to help AI agents navigate the site without scraping rendered HTML. The primary, structured summary is at `/agents` — fetch that for the dense version. ## Primary - [Agent summary](https://carlos.castillo-a.com/agents): dense, parseable summary of who Carlos is, the featured projects, and design principles. Start here if you are an AI agent. - [Home](https://carlos.castillo-a.com/): human-facing intro, bio, and how Carlos thinks about infra. ## Pages - [Experience](https://carlos.castillo-a.com/experience): work history. - [Projects](https://carlos.castillo-a.com/projects): featured infra projects with interactive architecture diagrams. - [Uses](https://carlos.castillo-a.com/uses): tools, hardware, dotfiles. - [Contact](https://carlos.castillo-a.com/contact): email, LinkedIn, GitHub. ## Notes - [/agents endpoint — security posture and thesis](https://carlos.castillo-a.com/notes/agents-endpoint): why an `/agents` endpoint is safe to expose and why it should become a convention. ## Source - [site repo](https://github.com/carlos-castillo-a/site): Astro source for this site. - [infra repo](https://github.com/carlos-castillo-a/infra): Terraform / Spacelift for S3 + CloudFront + Lambda@Edge deploy.