R. Bustamante, Ranger

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Raphael Bustamante

Enterprise AI Architect · Agentic Systems · Austin, TX

I build agent systems that have to run inside real enterprise clouds, not just in a demo. When they catch fire, I put it out and try to make sure it stays out.

Ranger's Notes

Rapha smiling on a boardwalk at sunset, holding his dog

I'm Rapha, based in Austin. Most of my work happens inside enterprise clouds, where a good agent demo runs into private networking, firewalls, and compliance. I've been pulled into projects where the AI worked fine in a sandbox and fell over the minute it touched the real environment.

What I've learned is that the model is rarely what breaks. It's the mock data nobody replaced, the identity that doesn't get passed along, the firewall rule nobody knew about, the "temporary" fix from three sprints ago. I like those problems. They're solvable if you're patient and you write things down.

I build with Claude Code most days. When I leave a project, I want the fix living in the pipeline, not in my head.

Patrol Logs

66degrees

Gemini Architect · May 2026 – Present

Found
Agents that had only ever run on mock data, inside a locked-down enterprise cloud. Egress was blocked, and the caller's identity wasn't making it from one agent to the next.
Did
Worked through the hub-and-spoke networking and firewall egress, and designed the path to a legacy enterprise database. Wrote a security audit of a two-agent production system (about 130 files, 35 findings) and fixed the identity bug. Built and handed off a Slack research agent on Cloud Run.
Prevention
Deploys run through the customer's own IaC and CI/CD pipelines, so nothing only works on someone's laptop. For the Slack agent I built a 60-question eval harness with an LLM judge, so a model change gets measured instead of eyeballed.

OdinZen

Co-founder · 2025 – Present

Found
Agents that would happily hallucinate thermodynamics.
Did
Co-founded OdinZen with two partners and built everything with Claude Code, including M.A.R.V.I.N., an agent that runs real CALPHAD solvers. We tested it on LLZO, a solid-state battery material.
Prevention
The agent checks its answers against the physics before a researcher sees them. A chatbot that makes something up is annoying. An agent that makes up a phase diagram is a real problem.
odinzen.io (opens in new tab)→

Google

Customer Engineer → Specialist Customer Engineer · 2022 – 2026

Found
Retail and financial services teams who wanted generative AI but had to get it past security and governance first.
Did
Designed AI gateway patterns on Apigee (zero-trust, OAuth 2.0, prompt inspection, semantic caching) and Gemini Enterprise architectures grounded in BigQuery. Advised C-level and IT leaders, and ran technical workshops for 150+ developers.
Prevention
Reusable Terraform patterns and reference architectures that teams could run without me.

Deloitte & Accenture

Cloud architecture & technical delivery · 2019 – 2022

Found
A 2M+ user platform going live while the cloud setup was still being built.
Did
Tech lead across API design and release streams. Built AWS and GCP apps with microservices and Terraform.
Prevention
CI/CD pipelines, plus engineering standards that cut defect rates by 35%.

The Towel

Every hitchhiker knows to bring a towel. This is what's in my pack.

Agentic Systems & Evals

  • Claude Code
  • MCP (Model Context Protocol)
  • Router / Sub-agent Architecture
  • Pairwise LLM Evals (LLM Judge)
  • Google ADK
  • Vertex AI
  • Python

Cloud & Infrastructure

  • Terraform / Terragrunt
  • Cloud Run & Containers
  • Pub/Sub (Event-Driven)
  • Hub-and-Spoke Enterprise Networking
  • CI/CD Pipelines

Security & Governance

  • IAM & Service Account Scoping
  • OAuth 2.0 / OIDC
  • Workforce Identity Federation
  • AI Gateways & Zero-Trust Perimeters

Certifications

  • 6× Google Cloud Professional Certified

Babel fish installed — fluent English / Spanish.

Report a Fire

No contact form. Rangers prefer a direct line.

If you've got an agent quietly smoking somewhere, or you just want to talk evals and MCP, send me a note.