Senior Data Science Lead, Growth AI Platform

Bain & Company, Inc.; Warszawa; On-site; PLN 320,000 - 520,000; Full time

Job summary

Bain & Company, Inc. is seeking a data scientist to own statistical modeling for a Growth AI product module. You will design Bayesian models, run time-series forecasts, and translate outputs into production-ready data products.

You will collaborate with data engineers and cross-functional teams to deliver actionable insights across marketing ROI, brand strategy, and pricing analytics. The role requires deep Bayesian expertise, 8+ years in applied data science, and the ability to present complex

Qualifications

• Deep Bayesian expertise for design, convergence diagnostics, and credible inferences.
• Strong domain knowledge in marketing mix modeling, media ROI analytics, or pricing analytics.
• Experience presenting methodology and results to senior stakeholders and clients.

Responsibilities

• Own the statistical modeling and analytical delivery for your product module from framing to production handoff.
• Design, build, and validate Bayesian models and time-series forecasts.
• Translate model outputs into structured data products for engineers and automated workflows.
• Lead evaluation frameworks including back-testing, out-of-sample checks, and confidence bounds.
• Present model methodology and recommendations to senior stakeholders.

Skills

Bayesian statistics

Python proficiency

Experiment design

Marketing mix modeling

Pricing analytics

Data storytelling

AGILE experience

Data science

Executive communications

Data pipelines

Education

Bachelor’s degree in statistics, mathematics, economics, computer science, or related quantitative field

Tools

Python

Probabilistic programming

Job description

Bain & Company, Inc. is seeking a data scientist to own statistical modeling for a Growth AI product module. You will design Bayesian models, run time-series forecasts, and translate outputs into production-ready data products.

You will collaborate with data engineers and cross-functional teams to deliver actionable insights across marketing ROI, brand strategy, and pricing analytics. The role requires deep Bayesian expertise, 8+ years in applied data science, and the ability to present complex