Machine Learning Engineer
5 days ago
Philadelphia
Responsibilities: • Own, maintain, and optimize an existing production-grade predictive model built using CatBoost and standard Python ML libraries., • Develop robust data preprocessing pipelines and feature engineering strategies to improve model accuracy using large, historical datasets from job tracking applications., • Implement rigorous model validation techniques, track performance metrics (e.g., RMSE, MAE), and proactively identify areas for improvement., • Collaborate directly with Data Engineers, Software Developers, and Product Managers to integrate and serve ML models within production systems., • Analyze model output, investigate anomalies, and ensure overall model reliability and reproducibility., • Clearly document your work and communicate complex model behavior and findings to both technical and non-technical stakeholders., • Explore and prototype advanced modeling techniques (e.g., Bayesian models, statistical methods) for future product enhancements. Must-Have Skills: • Expert-level proficiency in Python for machine learning and data analysis, with proven professional experience., • Deep, hands-on expertise with scikit-learn, pandas, NumPy, and standard data preprocessing libraries., • Practical, professional experience with CatBoost (or similar gradient boosting frameworks like XGBoost or LightGBM), including model training, validation, and hyperparameter tuning., • Solid understanding of end-to-end ML lifecycle: feature engineering, model training, validation, hyperparameter tuning, and performance measurement., • Proven ability to clean, analyze, and derive insights from large, structured, real-world datasets., • Professional experience with Jupyter Notebooks and Git for version control., • 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