

Machine Learning Engineer
β - Featured Role | Apply direct with Data Freelance Hub
This role is for a Machine Learning Engineer on a contract basis, focusing on optimizing predictive models using CatBoost and Python. Key skills include expertise in scikit-learn, data preprocessing, and model validation. Location and pay rate are unspecified.
π - Country
United States
π± - Currency
$ USD
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π° - Day rate
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ποΈ - Date discovered
September 11, 2025
π - Project duration
Unknown
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ποΈ - Location type
Unknown
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π - Contract type
Unknown
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π - Security clearance
Unknown
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π - Location detailed
Philadelphia, PA
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π§ - Skills detailed
#ML (Machine Learning) #Pandas #Python #GIT #AI (Artificial Intelligence) #Datasets #Jupyter #NumPy #Data Analysis #Model Validation #Libraries #Data Engineering #Version Control
Role description
Responsibilities:
β’ Own, maintain, and optimize an existing production-grade predictive model built using CatBoost and standard Python ML libraries.
β’ Develop robust data preprocessing pipelines and feature engineering strategies to improve model accuracy using large, historical datasets from job tracking applications.
β’ Implement rigorous model validation techniques, track performance metrics (e.g., RMSE, MAE), and proactively identify areas for improvement.
β’ Collaborate directly with Data Engineers, Software Developers, and Product Managers to integrate and serve ML models within production systems.
β’ Analyze model output, investigate anomalies, and ensure overall model reliability and reproducibility.
β’ Clearly document your work and communicate complex model behavior and findings to both technical and non-technical stakeholders.
β’ Explore and prototype advanced modeling techniques (e.g., Bayesian models, statistical methods) for future product enhancements.
Must-Have Skills:
β’ Expert-level proficiency in Python for machine learning and data analysis, with proven professional experience.
β’ Deep, hands-on expertise with scikit-learn, pandas, NumPy, and standard data preprocessing libraries.
β’ Practical, professional experience with CatBoost (or similar gradient boosting frameworks like XGBoost or LightGBM), including model training, validation, and hyperparameter tuning.
β’ Solid understanding of end-to-end ML lifecycle: feature engineering, model training, validation, hyperparameter tuning, and performance measurement.
β’ Proven ability to clean, analyze, and derive insights from large, structured, real-world datasets.
β’ Professional experience with Jupyter Notebooks and Git for version control.
β’ Excellent problem-solving skills and the ability to communicate complex concepts clearly and effectively.
#MachineLearning #ML #MachineLearningEngineer #AI #Python #CatBoost #ScikitLearn #XGBoost #DataScience #MLOps #TechJobs #Hiring #Comcast #ConstructionTech #PredictiveAnalytics #LinkedInJobs
Responsibilities:
β’ Own, maintain, and optimize an existing production-grade predictive model built using CatBoost and standard Python ML libraries.
β’ Develop robust data preprocessing pipelines and feature engineering strategies to improve model accuracy using large, historical datasets from job tracking applications.
β’ Implement rigorous model validation techniques, track performance metrics (e.g., RMSE, MAE), and proactively identify areas for improvement.
β’ Collaborate directly with Data Engineers, Software Developers, and Product Managers to integrate and serve ML models within production systems.
β’ Analyze model output, investigate anomalies, and ensure overall model reliability and reproducibility.
β’ Clearly document your work and communicate complex model behavior and findings to both technical and non-technical stakeholders.
β’ Explore and prototype advanced modeling techniques (e.g., Bayesian models, statistical methods) for future product enhancements.
Must-Have Skills:
β’ Expert-level proficiency in Python for machine learning and data analysis, with proven professional experience.
β’ Deep, hands-on expertise with scikit-learn, pandas, NumPy, and standard data preprocessing libraries.
β’ Practical, professional experience with CatBoost (or similar gradient boosting frameworks like XGBoost or LightGBM), including model training, validation, and hyperparameter tuning.
β’ Solid understanding of end-to-end ML lifecycle: feature engineering, model training, validation, hyperparameter tuning, and performance measurement.
β’ Proven ability to clean, analyze, and derive insights from large, structured, real-world datasets.
β’ Professional experience with Jupyter Notebooks and Git for version control.
β’ Excellent problem-solving skills and the ability to communicate complex concepts clearly and effectively.
#MachineLearning #ML #MachineLearningEngineer #AI #Python #CatBoost #ScikitLearn #XGBoost #DataScience #MLOps #TechJobs #Hiring #Comcast #ConstructionTech #PredictiveAnalytics #LinkedInJobs