Data Scientist – Marketing / Consumer Analytics

We are looking for a person with data analyst experience who transforms data into real business results, not just creates models. You will join a newly formed analytics team at a leading global tobacco company, shaping the impact of data on consumer strategy and marketing results. Your work will focus on predictive modeling, consumer analysis, and translating insights into practical business decisions. If you want your models to have a real impact, this role is for you.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications, competencies, and performance. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promote a diverse and inclusive work environment.

Your tasks

• 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

Requirements

• Minimum 5 years of experience in Data Science domain in a marketing context
• Strong proficiency in SQL – ability to write complex queries, join large datasets, and prepare data for modeling
• Proficiency in Python (libraries such as pandas, numpy, scikit-learn, statsmodels, or similar) – focus on data analysis, modeling, and result validation
• Proven expertise in consumer data modelling and analysis
• Good understanding of segmentation models (clustering, scoring, customer profiling) and predictive models (propensity, churn, LTV)
• Experience working with large datasets and ETL processes
• Basic knowledge of model validation and performance metrics (AUC, lift, confusion matrix)
• Ability to work with business data and interpret analytical results
• Attention to code quality and reproducibility of analyses
• Fluent Polish required
• Residing in Poland required

Job no. 251208-QW8G3

Benefits For You

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care