Senior Data Scientist: Predictive Modeling & Insights

Sii Poland; Bydgoszcz; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Centre of internal trainings

MySii app

Medical care

Job summary

Sii Poland is seeking an experienced Data Scientist to join a newly formed analytics team within a global tobacco industry leader. You will build predictive models, extract consumer insights, and translate analytics into actionable business decisions that move the needle for marketing performance.

Your work will focus on predictive modeling, consumer insights, and translating analytics into decisions that shape consumer strategy.

Qualifications

• Minimum 5 years of experience as a Data Scientist.
• Proficiency in SQL – ability to write complex queries and prepare data for modeling.
• Proficiency in Python (pandas, numpy, scikit-learn, statsmodels, or similar).
• Experience with large datasets and ETL processes.
• Ability to work with business data and interpret analytical results.
• Attention to code quality and reproducibility of analyses.
• Ability to communicate effectively in English in an international environment.

Responsibilities

• Build and optimize predictive models (e.g., churn, propensity, segmentation, CLV, recommendations).
• Analyze consumer and marketing data across multiple sources.
• Model and optimize customer journeys using AI/ML techniques.
• Collaborate with marketing and product teams to define analytical priorities.
• Translate complex analytical findings into clear business recommendations.
• Deliver analytical outputs together with actionable usage guidance for business teams.
• Prepare high-quality presentations, reports and data visualizations for non-technical stakeholders.
• Track model performance and measure business impact on marketing KPIs and P&L.
• Identify new opportunities for data-driven growth and champion data-based decision-making across the organization.

Skills

SQL

Python (pandas, numpy, scikit-learn)

ETL

Data interpretation

English communication

Code quality/reproducibility

5+ years experience

Tools

SQL tooling

Job description

Sii Poland is seeking an experienced Data Scientist to join a newly formed analytics team within a global tobacco industry leader. You will build predictive models, extract consumer insights, and translate analytics into actionable business decisions that move the needle for marketing performance.

Your work will focus on predictive modeling, consumer insights, and translating analytics into decisions that shape consumer strategy.