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drapala avatar

Hey, I'm JoΓ£o Drapala πŸ‘‹

Back End & AI Infrastructure Engineer

"Build systems that think β€” and let them build with you."


πŸš€ Current Focus

Back End & AI Infrastructure Engineer
Working on agentic LLM workflows, epistemic knowledge systems, and AI-native data infrastructure. Currently building autonomous pipelines that reason, self-challenge, and calibrate confidence over time.


πŸ› οΈ Stack

Python Java Go

Spring Boot Kafka AWS Docker Kubernetes

Claude OpenAI LanceDB

Postgres Redis SQLite


🌟 Featured Projects

  • metaxon
    Autonomous epistemic knowledge base built with Claude Code. Ingests papers and articles, runs adversarial challenges (Gate 3), tracks source diversity via Bradford Law, and applies quarantine/promote pipelines to prevent knowledge collapse. Currently running a 30-day calibration benchmark comparing a full epistemic pipeline against a vanilla baseline β€” measuring ECE, Brier score, and overconfidence gap.

  • Zelox
    Procurement intelligence engine for public contract data. Ingests 3.7M+ contracts, runs risk scoring across signals: ownership overlap networks, sanctions databases, purchase splitting patterns, and contract ceiling flags. Powers audit prioritization and supplier risk profiles.

  • Validahub
    Data quality and intelligence layer for Brazilian marketplaces β€” CSV validation evolving into full business intelligence for e-commerce integrators.


πŸ”— Connect

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