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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

Proyecto Qué resuelve Resultado clave Demo
fraude-tarjeta-credito Detección de fraude con costo asimétrico y threshold tuning LightGBM + XGBoost · FastAPI · 44 tests ▶ Demo
staff-sizing-portfolio Analítica de dotación de personal y planificación de headcount BigQuery · GCP · Looker Studio ▶ Demo
latam-uniforms-portfolio Forecast de demanda y plan de compra de uniformes · aerolínea LATAM BigQuery · forecast 3 escenarios · safety stock 95% · plan de 14.838 u ▶ Demo
meli-shipping-forecast Demanda de envíos · 27 estados · dataset Olist WAPE 0.4042 · conformal prediction · Streamlit deployado ▶ Demo
credit-scoring-ml Scoring crediticio end-to-end: scorecard WoE/IV + XGBoost, score estilo FICO, explicabilidad SHAP AUC-ROC = 0.866 · Optuna · FastAPI · Streamlit deployado ▶ Demo
anomaly-detection-llm Detección de anomalías en logs IT + agente LLM con memoria F1 = 0.947 · LOF · LangGraph · Evidently · 90 tests local

Stack

ML & modelado

LightGBM scikit-learn statsforecast conformal prediction

LLMs & agentes

Ollama LangChain LangGraph llama3.2

MLOps

MLflow Evidently Optuna GitHub Actions Docker

APIs & serving

FastAPI Pydantic Streamlit

Datos

DuckDB pandas Python uv


Contacto

LinkedIn Email

Pinned Loading

  1. credit-scoring-ml credit-scoring-ml Public

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

    Jupyter Notebook

  2. fraude-tarjeta-credito fraude-tarjeta-credito Public

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

    Python

  3. staff-sizing-portfolio staff-sizing-portfolio Public

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

    Python

  4. anomaly-detection-llm anomaly-detection-llm Public

    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-System Hierarchical-Demand-Forecasting-System Public

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

    Python

  6. meli-shipping-forecast meli-shipping-forecast Public

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

    Jupyter Notebook