Machine Learning Engineer (Spanish Speaking)
Lemn
Date: 3 weeks ago
City: Dubai
Contract type: Full time
We’re looking for a freelance Machine Learning Engineer to help us optimize and maintain a regression model used to predict revenue based on payment transaction features. The ideal candidate should be comfortable with structured data, feature engineering, and model evaluation.
What you’ll do
What you’ll do
- Improve and maintain existing models (Random Forest, XGBoost) built with scikit-learn pipelines.
- Tune hyperparameters and evaluate using proper metrics (MAE, R²).
- Generate model diagnostics (feature importance, prediction distribution, error analysis).
- Help ensure code is clean, reproducible, and well-structured.
- Optional: assist with Dockerizing or deploying via REST API (Flask/Gunicorn).
- Solid experience in regression modeling using scikit-learn, xgboost, and pandas.
- Strong understanding of metrics (especially for regression) and data preprocessing.
- Ability to read and refactor existing code.
- Comfortable working with CSV datasets, pipelines, and model persistence (joblib).
- English communication skills (written is enough).
- Experience with Flask APIs.
- Understanding of Docker.
- Familiarity with financial or transactional data.
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