Senior Data Scientist - Search and Personalization

At CVS Health, we’re building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care.

As the nation’s leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues – caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all with heart, each and every day.

POSITION SUMMARY

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, ensuring our customers find the products they need quickly and efficiently.

What you will do

• Designs and defines the technical architecture and infrastructure required for digital solutions
• Writes code, develops software components, and implements complex functionalities according to project requirements
• Collaborates with other members of the development team and stakeholders to make high-level architectural decisions, proposes design patterns, and ensures scalability, performance, and maintainability of digital solutions
• Leverages advanced programming skills to design and implement complex features, optimize performance, and ensure code efficiency
• Integrates various software components or systems, ensuring seamless communication and interoperability between different parts of the digital solution
• Writes and executes comprehensive test cases, conducts code reviews, performs debugging, and troubleshoots issues to ensure the reliability, stability, and high quality of digital solutions
• Participates in agile or other development methodologies, attends meetings, contributes to project planning, and helps drive the progress and success of digital projects
• Explores new tools, frameworks, and techniques to improve digital solutions and drive innovation within the development team
• Creates and maintains technical documentation, including system designs, architecture diagrams, code documentation, and other relevant documentation while sharing their knowledge and expertise with team members, ensuring effective knowledge transfer and collaboration

REQUIRED QUALIFICATIONS

• 5+ years of Data Science experience
• 3+ 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

PREFERRED QUALIFICATIONS

• Experience with eCommerce platforms and user behavior modeling
• Familiarity with LLMs and generative AI applications in search
• Knowledge of MLOps practices and model deployment pipelines
• Passion for e-commerce and a deep understanding of user behavior
• Contributions to open-source search or ML projects

EDUCATION

Bachelor’s degree or, equivalent experience (HS diploma + 4 years relevant experience)

BUSINESS OVERVIEW

Bring your heart to CVS Health Every one of us at CVS Health shares a single, clear purpose: Bringing our heart to every moment of your health. This purpose guides our commitment to deliver enhanced human-centric health care for a rapidly changing world. Anchored in our brand — with heart at its center — our purpose sends a personal message that how we deliver our services is just as important as what we deliver.  Our Heart At Work Behaviors™ support this purpose. We want everyone who works at CVS Health to feel empowered by the role they play in transforming our culture and accelerating our ability to innovate and deliver solutions to make health care more personal, convenient and affordable.  We strive to promote and sustain a culture of diversity, inclusion and belonging every day.  CVS Health is an affirmative action employer, and is an equal opportunity employer, as are the physician-owned businesses for which CVS Health provides management services. We do not discriminate in recruiting, hiring, promotion, or any other personnel action based on race, ethnicity, color, national origin, sex/gender, sexual orientation, gender identity or expression, religion, age, disabili