Senior Data Scientist: Predictive Analytics for Marketing

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

Benefits offered by this job

Great Place to Work

Centre of internal trainings

Profit sharing

Medical care

Job summary

Sii Poland is seeking an experienced Data Scientist to build predictive models and translate insights into business actions within a newly formed analytics team. You will analyze consumer and marketing data, drive machine learning initiatives, and shape how data informs strategy and performance.

You will collaborate with marketing and product teams, track model performance, and present results to non-technical stakeholders to influence growth and decision making in a global organization.

Qualifications

• Minimum 5 years of experience as a Data Scientist.
• Strong proficiency in SQL—write complex queries and prepare data for modeling.
• Proficiency in Python libraries for data analysis, modeling, and validation.
• Experience with large datasets and ETL processes.
• Ability to communicate results clearly 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 analytical findings into clear business recommendations and actionable guidance.

Skills

Data analysis

Modeling

English communication

Tools

SQL

Python

ETL

Job description

Sii Poland is seeking an experienced Data Scientist to build predictive models and translate insights into business actions within a newly formed analytics team. You will analyze consumer and marketing data, drive machine learning initiatives, and shape how data informs strategy and performance.

You will collaborate with marketing and product teams, track model performance, and present results to non-technical stakeholders to influence growth and decision making in a global organization.