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kovashikawa/README.md

Hi there, I'm Rafael Kovashikawa 👋

I’m an economist-turned-data-professional with a soft spot for macro signals, efficient pipelines, and making cool things with LLMs. Always curious about tech, data, and dogs.

I work across the full stack of data science and engineering: modeling, infrastructure, APIs, MLOps, LLM systems, and quantitative analysis.

What I do best

  • Data Science & Modeling · Develop and productionize time-series (ARIMA, VaR), tree-based, and econometric models for CPI forecasts, credit risk, and trading signals.
  • Data Engineering · Build and orchestrate ETL on Airflow + Kubernetes.
  • ML in Production · Deploy credit-risk and anomaly-detection models (FastAPI, Docker).
  • LLMs & AI Agents · RAG pipelines, LangChain + vector DBs, MCP Servers, Context Engineering.
  • Marketing AI & Analytics · Architected end-to-end multi-platform integrations (TikTok, Google, Meta Ads) for complex AI-driven data intelligence.

Tech Stack

  • Programming: Python, R, MongoDB, SQL, JavaScript, TypeScript, MCP (Model Context Protocol), Pydantic AI
  • Data Viz & Analysis: Plotly, Matplotlib, Tableau, Excel, Bloomberg
  • Cloud & Automation: AWS, Redis, Apache Airflow, GitHub Actions, GCP
  • ML & AI: scikit-learn, XGBoost, LightGBM, Econometrics, LLMs, NLP, MCP Servers, Context Engineering

Experience

Education

  • MIT — Data Science & Statistics MicroMasters (Expected 2026)
  • Fundação Getúlio Vargas (EPGE) — B.Sc. Economics (2017–2021)

Awards

  • 🏆 Google Cloud AI Hackathon (Dec 2025) – Winner (MedAnnotator) | Code
  • 🏆 Big Data Hackathon (Sep 2021) – XP Inc. & Microsoft Azure
  • 🏆 Cryptocurrency Datathon (Sep 2020) – FGV & Ripple

📫 Let's connect: LinkedIn | Portfolio

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  1. spotify2youtube spotify2youtube Public

    Transfer playlists from spotify to youtube

    Python 1