Machine Learning Engineer Expert
MercorDescription
1. Role Overview
We’re hiring experienced Machine Learning Engineers and Applied ML Researchers to design, solve, and evaluate complex machine learning challenges that reflect real-world ML workflows. This role requires strong hands-on modeling expertise, the ability to develop high-quality reference solutions, and deep familiarity with modern machine learning techniques across a variety of domains and data modalities.
2. What You’ll Do
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Develop end-to-end machine le.arning solutions for challenging prediction and modeling problems
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Analyze datasets and define appropriate modeling approaches, validation strategies, and evaluation metrics
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Perform exploratory data analysis, feature engineering, and data preprocessing
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Train, tune, and evaluate machine learning models across tabular, text, image, and time-series datasets
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Develop strong reference solutions using industry-standard machine learning techniques and best practices
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Review and validate the technical quality of machine learning projects and deliverables
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Document methodologies, assumptions, and evaluation results in a clear and reproducible manner
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Identify opportunities to improve model performance through systematic experimentation and iteration
3. Required Qualifications
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Master’s degree or PhD in Computer Science, Machine Learning, Statistics, Mathematics, Electrical Engineering, or a related field from a top-tier university
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2+ years of hands-on experience developing, training, evaluating, and optimizing machine learning models in a professional or research setting.
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Strong proficiency in Python and modern machine learning frameworks (e.g., scikit-learn, XGBoost, LightGBM, PyTorch, TensorFlow)
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Demonstrated experience building end-to-end machine learning solutions, including data preparation, model development, validation, and evaluation
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Strong understanding of model evaluation metrics, validation methodologies, and experimental design
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Experience with one or more of the following areas:
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Tabular machine learning
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Natural language processing
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Computer vision
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Recommendation systems
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Ranking systems
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Time-series forecasting
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Ability to work independently on open-ended machine learning problems and deliver high-quality technical outputs
4. Preferred Qualifications
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PhD from a leading research university
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Experience at leading technology companies, AI labs, research institutions, or high-growth startups
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Participation in competitive machine learning or data science competitions
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Experience optimizing models against performance-based evaluation metrics
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Familiarity with advanced techniques such as ensembling, hyperparameter optimization, transfer learning, foundation model fine-tuning, or reinforcement learning
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Publications, patents, or significant open-source contributions in machine learning or AI
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Experience reviewing, mentoring, or evaluating the work of other machine learning practitioners
Interested in this position?
Apply directly on the company's website