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About the Role
Chewy Marketing Science is hiring a Data Scientist III in Boston, MA. This role focuses on building data science and AI products powered by ML/Stats models and agentic AI workflows. You will have the opportunity to rapidly prototype solutions, identify innovation opportunities, and partner with marketing stakeholders to drive value. You will work across the full model development lifecycle, collaborating with MLEs and fellow data scientists to advance technical capabilities and shape the future of AI innovation at Chewy.
Responsibilities
- Lead end-to-end data science projects from idea generation and offline evaluation to deployment, experimentation, feedback loops, and continuous model improvement.
- Build, evaluate, and deploy predictive, statistical, and machine learning models.
- Formalize assumptions about model behavior, define and detect outliers systematically, and implement fixes or improvements.
- Partner with marketing stakeholders to identify, scope, and prioritize AI and data science opportunities that create measurable business impact.
- Build internal AI copilots and assistants that enhance productivity, automate repetitive workflows, and accelerate campaign execution.
- Stay ahead of industry and technology trends to anticipate emerging opportunities in AI and e-commerce.
- Communicate insights and recommendations clearly to audiences with varying technical expertise.
Requirements
- Advanced degree (M.S., Ph.D., or equivalent experience) in Data Science, Statistics, Applied Mathematics, Computer Science, Physics, or a related field, or 5+ years of experience designing optimization and machine learning solutions at scale.
- Strong foundation in machine learning and statistical methods, including Bayesian inference, regression, classification, forecasting, time series, causal inference, and machine learning techniques such as tree-based models.
- Ability to understand and apply advanced mathematics and data science methodologies to solve complex business problems.
- Proficiency in Python for building proofs-of-concept and deploying production-ready solutions.
- Strong ability to translate business needs into AI and data science opportunities, with knowledge of marketing workflows, customer data, and campaign lifecycles.
- Proven ability to prototype quickly, iterate through experimentation, and operationalize models into production.
- Strong business acumen and problem-solving skills.
- Excellent communication skills, with the ability to convey technical concepts to both technical and non-technical stakeholders.
- An AI-native mindset—curious, creative, and eager to leverage the latest AI tools to accelerate marketing impact.
Skills
- Machine learning
- Statistical methods
- Bayesian inference
- Regression
- Classification
- Forecasting
- Time series
- Causal inference
- Tree-based models
- XGBoost
- Random Forest
- Python
- Marketing workflows
- Customer data
- Campaign lifecycles
- AI
- Data science
- Marketing measurement
- Marketing optimization
- Budget allocation
- Marketing mix modeling
- Incrementality testing
- Campaign performance optimization
- Bayesian statistics
- Hierarchical modeling
- AWS
- GCP
- Azure
- Databricks
Location
- Boston, MA
Work Type
- Full-time
Experience Level
- Data Scientist III
Education Level
- M.S.
- Ph.D.
- Equivalent experience
Salary/Compensations
- The specific salary offered to a candidate may be influenced by a variety of factors including but not limited to the candidate’s relevant experience, education, and work location.
Benefits
- 401k
- New hire and annual equity grant
- Annual bonus (for C08+ positions)
- Medical/Rx insurance
- Vision insurance
- Dental insurance
- Life insurance
- Disability insurance
- Hospital indemnity insurance
- Critical illness insurance
- Accident insurance
- Parental leave
- Family services benefits
- Backup dependent care
- Flexible spending accounts
- Telemedicine
- Pet adoption reimbursement
- Employee assistance program
- 10% off pet insurance discount
- 20% off at Chewy.com discount
- Unlimited PTO (subject to manager approval for exempt salary team members)
- Six paid holidays per year
- Paid sick and family leave (in compliance with applicable state and local regulations)
About the Company
- Chewy is a company that uses advanced AI, machine learning, and statistics to understand and serve the needs of pet parents.
- The Marketing Science team has single-threaded ownership of building data science and AI products powered by ML/Stats models and agentic AI workflows.
Equal Opportunity
- Chewy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, gender, citizenship, marital status, religion, age, disability, gender identity, results of genetic testing, veteran status, as well as any other legally-protected characteristic.
- If you have a disability under the Americans with Disabilities Act or similar law, and you need an accommodation during the application process or to perform these job requirements, or if you need a religious accommodation, please contact CAAR@chewy.com.