Data Scientist I

Chewy; Boston (MA); On-site; USD 98,000 - 160,000; Full time

Benefits offered by this job

401k

Annual equity grant

Bonus eligibility

Unlimited PTO

Paid holidays

Healthcare benefits

Job summary

Chewy is seeking a Data Scientist I for our Trust and Safety team to help detect and reduce harmful behavior on the platform, partnering with Product, Engineering, Operations, and Business stakeholders to turn data into models, dashboards, and clear recommendations that protect customers and the company.

In this role you will move work through the full data science path: framing the problem, pulling and checking data, building features and models, measuring performance, and explaining learnings

Qualifications

• Bachelor's degree in data science, Statistics, Computer Science, or a closely related field.
• 1+ years of experience in a data science or equivalent analytics role with end-to-end work.
• Strong programming in Python, including data manipulation and ML libraries.
• Solid SQL and experience with relational or warehouse-style data.
• Grounding in statistics and machine learning; comfortable explaining model behavior and limitations, especially for rare event detection and imbalanced datasets.
• Strong written and verbal communication; ability to simplify technical work while showing tradeoffs.

Responsibilities

• Gather, prioritize, and prepare data from multiple sources with quality control to deliver scalable, data-driven solutions.
• Run exploratory analysis with statistics and visuals to identify patterns relevant to risk and policy decisions.
• Engineer and select features to improve model quality and stability over time.
• Use statistical methods to describe distributions and relationships and quantify uncertainty.
• Choose and implement machine learning approaches suited to the problem.
• Evaluate models with business-aligned metrics and iterate on data pipelines.
• Interpret outputs, surface key drivers, and present results for both technical and non-technical partners.
• Build clear charts and narratives for reviews and operational readouts.
• Partner with product, engineering, and operations to turn questions into analyses and shipped solutions.

Skills

Python programming

SQL

Statistics

Machine Learning

Communication

Education

Bachelor's degree in data science / statistics / CS

Tools

AWS

Snowflake

Tableau/Streamlit

SageMaker

Job description

Job Description

We are hiring a Data Scientist I for our Trust and Safety team. You will help us detect and reduce harmful behavior on the platform, focusing on detecting fraudulent or abusive activities. Partner with Product, Engineering, Operations, and Business stakeholders to turn data into models, dashboards, and clear recommendations that protect customers and the company.

In this role you will move work through the full data science path: framing the problem, pulling and checking data, building features and models, measuring performance in realistic terms, and explaining what we learned and what we should do next.

Responsibilities

• Gather, prioritize, and prepare data from multiple sources with attention to quality, definitions, and limitations to deliver scalable, data-driven solutions that improve customer trust, operational efficiency, and business outcomes.
• Run exploratory analysis with statistics and visuals to find patterns, segments, and signals relevant to risk and policy decisions.
• Engineer and select features (create, transform, validate) to improve model quality and stability over time.
• Use statistical methods (for example descriptive stats, comparisons, and hypothesis-style checks where appropriate) to describe distributions, relationships, and uncertainty.
• Choose and implement machine learning approaches suited to the problem (for example classification, ranking, clustering) given data volume and constraints.
• Evaluate models with metrics that match the business goal (for example precision/recall tradeoffs, calibration, segment performance) and iterate on the model and data pipeline.
• Interpret outputs, surface key drivers and caveats, and present results so both technical and non-technical partners can act on them.
• Build clear charts and narratives for reviews, documentation, and operational readouts.
• Partner with product, engineering, and operations to turn questions into scoped analyses and shipped solutions.

Qualifications

• Bachelor's degree in data science, Statistics, Computer Science, or a closely related field.
• 1+ years of experience in a data science or equivalent analytics role with examples of end-to-end work.
• Strong programming in Python, including data manipulation and ML libraries.
• Solid SQL and experience working with relational or warehouse-style data.
• Grounding in statistics and machine learning; comfort explaining model behavior and limitations with a specific focus on rare event detection and handling highly imbalanced datasets.
• Strong written and verbal communication; able to simplify technical work without hiding important tradeoffs.

Nice to have

• Experience with a major cloud platform (AWS, Azure, GCP) or Snowflake.
• Familiarity with AWS data and ML services (for example Glue, SageMaker, Athena, Redshift).
• Experience with visualization or lightweight apps (for example Tableau, Streamlit) or analyst workflows that include structured querying.
• Background in retail, e-commerce, payments, fraud and risk domains.

The base salary range for this role is $97,500 - $160,000.00.

• 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. In addition, this position is eligible for 401k and a new hire and annual equity grant. C08+ positions may also be eligible for annual bonus.

We offer different types of insurance and benefits, such as medical/Rx, vision, dental, life, disability, hospital indemnity, critical illness, and accident. We offer parental leave, family services benefits, backup dependent care, flexible spending accounts, telemedicine, pet adoption reimbursement, employee assistance program, and many discounts including 10% off pet insurance and 20% off at Chewy.com.

Exempt salary team members have unlimited PTO, subject to manager approval. Team members will receive six paid holidays per year. Team members may be eligible for paid sick and family leave in compliance with applicable state and local regulations.

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 [e-mail].

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