Location
In office (Chile)
First seen by Alion on Aug 24, 2026.
Overview
Company
Impact
Profile match
Somos expertos en consultoría TI y transformación digital. Brindamos desarrollo de software, apps y gestión de procesos. Lisit, de Chile al mundo.
Requisitos excluyentes
Excluyente- Python sólido (pandas, scikit-learn) y experiencia real llevando un modelo a producción en NLP en español.
- Experiencia con tokenización, normalización de texto y manejo de errores ortográficos.
- Experiencia con Transformers / Hugging Face para fine-tuning de BERT (ideal BETO u otro BERT en español) orientado a NER.
- Etiquetado programático / weak supervision: construir datasets de entrenamiento sin etiquetado manual masivo.
- Evaluación rigurosa: precision/recall/F1, conjuntos held-out y control de fuga de datos.
Misión
Misión: construir el corpus de entrenamiento a partir de 1,8 millones de pares históricos; hacer fine-tuning de un modelo NER en español; calibrar el score de confianza; y dejar el pipeline reproducible y traspasable al cliente.- Construir el dataset de entrenamiento sin etiquetado manual masivo (etiquetado programático / weak supervision).
- Realizar tokenización y normalización de texto para NLP en español.
- Entrenar y ajustar un modelo para NER en español (idealmente BERT en español, como BETO u otro BERT en español) con Transformers / Hugging Face.
- Gestionar errores ortográficos y robustez del preprocesamiento.
- Evaluar rigurosamente el desempeño con precision/recall/F1 usando conjuntos held-out y control de fuga de datos.
- Calibrar probabilidades para que el umbral de confianza sea interpretable (score calibrado con métodos como Platt o isotónica).
- Garantizar reproducibilidad: documentación del pipeline, trazabilidad de experimentos y empaquetado para que el cliente pueda replicarlo y operarlo.
Deseable (suma puntos)
- XGBoost y calibración de probabilidades (Platt / isotónica): el umbral de 0,82 debe significar probabilidad real.
- Embeddings y búsqueda vectorial (pgvector, HNSW, sentence-transformers).
- Fuzzy matching: distancias de edición, algoritmos fonéticos, pg_trgm.
- MLflow para gestión de experimentos y despliegue.
- ONNX y cuantización INT8 para inferencia eficiente en CPU (sin GPU).
- libpostal.
- Experiencia con direcciones postales, geocodificación o datos geográficos.
Beneficios
Hibrido
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