Senior Data Scientist, Marketing Analytics & ML

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

Benefits offered by this job

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

Job summary

Sii Poland is seeking an experienced Data Scientist to join a newly formed analytics team. You will build predictive models, derive consumer insights, and translate analytics into actionable business decisions within an international tobacco industry context.

You will analyze data from multiple sources, collaborate with marketing and product teams, and deliver clear, actionable guidance. Strong SQL and Python skills, plus experience with large datasets and ETL, are essential.

Qualifications

• Minimum 5 years of experience as a Data Scientist.
• Strong SQL skills to write complex queries and prepare data.
• Python data analysis and modeling expertise.
• Experience with large datasets and ETL workflows.
• Ability to communicate 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 KPIs and P&L.
• Identify new opportunities for data-driven growth and champion data-based decision-making.

Skills

SQL proficiency

Python data modeling

ETL processes

English communication

Job description

Sii Poland is seeking an experienced Data Scientist to join a newly formed analytics team. You will build predictive models, derive consumer insights, and translate analytics into actionable business decisions within an international tobacco industry context.

You will analyze data from multiple sources, collaborate with marketing and product teams, and deliver clear, actionable guidance. Strong SQL and Python skills, plus experience with large datasets and ETL, are essential.