Senior Data Scientist - ML Lifecycle Lead (Hybrid)

BJ's Wholesale Club, Inc.; Marlborough (MA); Hybrid; USD 150,000 - 175,000; Full time

Benefits offered by this job

Weekly Pay

Free BJ’s Memberships

Paid Time Off

Health Benefits

401(k) Retirement Savings Plan

Employee Stock Purchase Plan

Job summary

BJ’s Wholesale Club, Inc. in Marlborough, MA is seeking a Sr. Data Scientist to lead end-to-end supervised and unsupervised machine learning work in a hybrid setting, driving analytics from research to production.

You will define deployment strategies and infrastructure standards, mentor junior scientists and contractors, and collaborate with business, data engineering, and product teams to transform data into measurable improvements in member acquisition, engagement, and retention.

Qualifications

• Master’s degree in Data Science, CS, Statistics, or related field.
• 3 years of data science experience focused on customer/business analytics in retail/tech.
• Experience developing and deploying ML models for business use.
• Experience building optimization algorithms.
• Experience with recommendation engines, customer segmentation, and propensity models.
• Strong programming skills in Python and SQL.
• ML framework experience such as Scikit‑learn.
• Experience with regression, clustering, and hypothesis testing.
• Experience managing ML lifecycle: version control, artifact storage, model registry, monitoring.
• Exposure to Databricks environment.
• Design test strategies for A/B tests using hypothesis testing, clustering, and regression.
• Proficiency with Python libraries: Scikit‑learn, Pandas, NumPy, Multiprocessing, Turicreate, Fuzzywuzzy.
• Experience with linear programming and solvers: Gurobi, Google OR‑Tools, PuLP.
• Experience may be gained concurrently.

Responsibilities

• Define infrastructure standards and deployment strategies for ML algorithms, including cluster health, scalability planning, and system monitoring.
• Oversee Jira, Confluence, and Git to support tracking, knowledge sharing, and adherence to standards.
• Convert business requirements into technical requirements and design data science solutions with cross‑functional partners.
• Communicate outcomes from model development and analyses to technical and business stakeholders.
• Mentor junior data scientists and external contractors by reviewing deliverables and providing guidance.
• Design and implement advanced supervised and unsupervised ML solutions using large‑scale distributed data processing.
• Define methodologies, modeling strategies, and evaluation frameworks; oversee lifecycle from experimentation through deployment and monitoring.
• Lead advanced statistical analyses and KPI measurement approaches.
• Identify key drivers of business outcomes and provide recommendations to senior leadership with quantitative evidence.

Skills

3 years experience

Python

SQL

A/B testing

Statistical techniques

ML lifecycle

Optimization algorithms

Recommendation engines

Customer segmentation

Hypothesis testing

Education

Master’s degree in Data Science/CS/Statistics

Tools

Databricks

Jira

Confluence

Git

Scikit‑learn

Pandas

NumPy

Multiprocessing

Turicreate

Fuzzywuzzy

Gurobi

Google OR‑Tools

PuLP

Job description

BJ’s Wholesale Club, Inc. in Marlborough, MA is seeking a Sr. Data Scientist to lead end-to-end supervised and unsupervised machine learning work in a hybrid setting, driving analytics from research to production.

You will define deployment strategies and infrastructure standards, mentor junior scientists and contractors, and collaborate with business, data engineering, and product teams to transform data into measurable improvements in member acquisition, engagement, and retention.