AI Systems Engineer. Philosophy before code, systems before features.
I studied Philosophy at UFRJ before Computer Science -- I learned to think before I learned to build. The interesting problems in AI live at the seam between what a machine can parse and what a citizen needs to understand.
Cidadão.AI -- Government Transparency Platform
A multi-agent system for public spending oversight. Twenty operational AI agents, each named after a Brazilian historical figure -- Zumbi investigates anomalies, Tiradentes generates reports, Machado analyzes text, Obaluaie detects corruption patterns. The system integrates 30+ federal and state transparency APIs into a unified intelligence layer.
INPI Registration: BR512025004322-8 | Thesis grade: 10/10
| Metric | Value |
|---|---|
| Agents | 20 operational + 2 base frameworks |
| Endpoints | 376 |
| Tests | 2,451 across 170 files |
| Codebase | 151K lines of Python |
| p95 latency | < 180ms |
FastAPI LangChain FAISS BERTimbau PostgreSQL Redis Railway Prometheus Grafana
NTS Lab -- Multi-Product Monorepo
A Turborepo monorepo with four vertical products in active development across 10 Railway services: Hipócrates (medical AI -- transcription, SOAP notes, OCR), Mercurius (multi-tenant notary management), Polis (municipal health), and Argos (law firm management). 12 shared TypeScript packages and a Python SDK on PyPI (ntlabs). The point isn't four products -- it's one architecture that generalizes across healthcare, legal, and municipal domains.
Next.js 15 TypeScript Turborepo Supabase Tailwind Docker
- langchain-maritaca -- First LangChain integration for Maritaca AI (Brazilian LLM). Published on PyPI.
- DSPy (Stanford) -- Submitted tutorial: "Building Multi-Agent Systems with Cultural Personalities." PR #9124
- Instructor (jxnl) -- Submitted cache observability hooks (CACHE_HIT/CACHE_MISS). PR #1960
- mcp-brasil -- MCP server in Go for Brazilian government transparency APIs.
Speaker at UaiSINT 2025
Peer-Reviewed
- DA SILVA, A.H.; FASSBINDER, A.G.O. Cidadão.AI: Uma Proposta de Sistema Multiagente para Democratização da Transparência Governamental. Accepted at SBSI 2026 (VIII CTDG-SI), SBC.
Preprints (Zenodo, 2025)
- Cidadão.AI: Sistema Multi-Agente de IA para Democratização do Acesso a Dados de Transparência Governamental Brasileira
- The Cyborg Developer: Empirical Analysis of Cognitive Extension Through Human-AI Collaborative Programming
- From Commits to Cognition: A Mixed-Methods Framework for Inferring Developer Mental Models from Repository Artifacts
Blog -- www.ntlabs.dev/pt/blog Ten articles on philosophy, AI engineering, and Brazilian public policy.
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Minas Gerais, Brazil.