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CVS is seeking a highly skilled and experienced Senior Data Scientist to join our growing team and revolutionize our e-commerce search experience. You will be responsible for developing and implementing innovative Neural Networks, kNN, natural language processing (NLP), learn-to-rank (LTR) solutions to power our search engine. The role emphasizes improving search relevance, personalization, and customer experience through advanced machine learning techniques.
Job Responsibility:
Design, develop, and deploy machine learning models to improve search relevance, ranking, and personalization
Analyze large-scale user interaction data to identify opportunities for improving search performance
Collaborate with engineering teams to integrate ML models into production search systems using Elasticsearch
Conduct A/B testing and performance evaluation of search algorithms and features
Develop NLP and deep learning models to enhance query understanding, product categorization, and semantic search
Drive innovation in AI-powered search features such as autocomplete, spell correction, and recommendation systems
Mentor junior data scientists and contribute to best practices in data science and ML engineering
Requirements:
5+ years of experience of Data Engineering experience with a preference of at least 2 of those years working in a Data Scientist capacity
2+ years developing and implementing Neural Networks, kNN, natural language processing (NLP), learn-to-rank (LTR) solutions in a production environment
Deep understanding of various LTR algorithms, including LambdaMART, RankNet, and LightGBM
Strong programming skills in Python and experience with machine learning libraries such as scikit-learn, TensorFlow, and PyTorch
Experience working with large datasets and developing scalable data pipelines
Experience with A/B testing and data analysis for measuring model performance
Nice to have:
Experience with eCommerce platforms and user behavior modeling
Familiarity with LLMs and generative AI applications in search
Passion for e-commerce and a deep understanding of user behavior
Knowledge of MLOps practices and model deployment pipelines
Contributions to open-source search or ML projects
Excellent communication and collaboration skills
What we offer:
Affordable medical plan options
401(k) plan (including matching company contributions)
Employee stock purchase plan
No-cost programs including wellness screenings, tobacco cessation and weight management programs
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