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Data Scientist – Marketing / Consumer Analytics

AI/ML

Data Scientist – Marketing / Consumer Analytics

AI/ML

-, Białystok +3 Locations

Sii

Full-time
B2B, Permanent
Senior
Remote

Tech stack

    Polish

    C1

    Python

    advanced

    SQL

    advanced

    ETL

    advanced

    Machine Learning

    advanced

    Pandas

    nice to have

    NumPy

    nice to have

    scikit-learn

    nice to have

    statsmodels

    nice to have

Job description

We’re looking for a Data Scientist who turns data into real business results — not just builds models. You will join a newly formed analytics team inside a leading global company in the tobacco industry, shaping how data drives consumer strategy and marketing performance. Your work will focus on predictive modeling, consumer insights, and translating analytics into actionable business decisions. If you want your models to truly ‘move the needle’, this role is for you.


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

Tech stack

    Polish

    C1

    Python

    advanced

    SQL

    advanced

    ETL

    advanced

    Machine Learning

    advanced

    Pandas

    nice to have

    NumPy

    nice to have

    scikit-learn

    nice to have

    statsmodels

    nice to have

Office location

Published: 05.11.2025

About the company

Sii

Sii Polska to czołowy dostawca doradztwa technologicznego, transformacji cyfrowej oraz usług biznesowych i inżynieryjnych. Firma obecna jest na rynku od 2006 roku, zatrudnia ponad 7 300 ekspertów, jedenastokrotnie zdobył...

Company profile

Data Scientist – Marketing / Consumer Analytics

Summary of the offer

Data Scientist – Marketing / Consumer Analytics

-, Białystok

Sii

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