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JulioPradenas/README.md

Julio Pradenas — Data Scientist

Sistemas ML end-to-end: desde feature engineering hasta APIs en producción, con foco en detección de anomalías, forecasting jerárquico y LLMs locales.

Magíster en Data Science · Universidad de Tasmania · Beca ANID
Actualmente: Data Scientist en el sector energía solar (Azure ML · Power BI)


Proyectos de portafolio

ProyectoQué resuelveResultado claveDemo
fraude-tarjeta-creditoDetección de fraude con costo asimétrico y threshold tuningLightGBM + XGBoost · FastAPI · 44 tests▶ Demo
staff-sizing-portfolioAnalítica de dotación de personal y planificación de headcountBigQuery · GCP · Looker Studio▶ Demo
latam-uniforms-portfolioForecast de demanda y plan de compra de uniformes · aerolínea LATAMBigQuery · forecast 3 escenarios · safety stock 95% · plan de 14.838 u▶ Demo
meli-shipping-forecastDemanda de envíos · 27 estados · dataset OlistWAPE 0.4042 · conformal prediction · Streamlit deployado▶ Demo
credit-scoring-mlScoring crediticio end-to-end: scorecard WoE/IV + XGBoost, score estilo FICO, explicabilidad SHAPAUC-ROC = 0.866 · Optuna · FastAPI · Streamlit deployado▶ Demo
anomaly-detection-llmDetección de anomalías en logs IT + agente LLM con memoriaF1 = 0.947 · LOF · LangGraph · Evidently · 90 testslocal

Stack

ML & modelado

LightGBMscikit-learnstatsforecastconformal prediction

LLMs & agentes

OllamaLangChainLangGraphllama3.2

MLOps

MLflowEvidentlyOptunaGitHub ActionsDocker

APIs & serving

FastAPIPydanticStreamlit

Datos

DuckDBpandasPythonuv


Contacto

LinkedInEmail

Pinned Loading

  1. credit-scoring-mlcredit-scoring-mlPublic

    End-to-end credit scoring system with WoE scorecard, SHAP explainability, and FastAPI

    Jupyter Notebook

  2. fraude-tarjeta-creditofraude-tarjeta-creditoPublic

    Fraud detection · LightGBM + XGBoost + Optuna · cost-sensitive thresholds · SMOTE · FastAPI · Streamlit · Docker · 44 tests

    Python

  3. staff-sizing-portfoliostaff-sizing-portfolioPublic

    Data Analyst portfolio — Staff Sizing & Headcount Planning · BigQuery · GCP

    Python

  4. anomaly-detection-llmanomaly-detection-llmPublic

    IT log anomaly detection · LOF F1=0.947 · LLM agent (Ollama/LangGraph) · Evidently drift · MLflow · FastAPI · Streamlit · BGL dataset 4.7M events

    Jupyter Notebook

  5. Hierarchical-Demand-Forecasting-SystemHierarchical-Demand-Forecasting-SystemPublic

    Hierarchical demand forecasting · M5 Walmart · 3049 series · 6 levels · MinT reconciliation · LightGBM · DuckDB · conformal prediction · FastAPI · 135 tests

    Python

  6. meli-shipping-forecastmeli-shipping-forecastPublic

    MercadoLibre shipping demand forecast · 27 Brazilian states · Olist dataset · LightGBM WAPE 0.4042 · conformal prediction · Prophet baseline · FastAPI · Streamlit

    Jupyter Notebook