Data Scientist
- Location
- Warsaw, Poland
- Work mode
- Remote
- Type
- Contract
- Seniority
- Senior
- Salary
- from 180 PLN / hour
- Languages
- EN
- Posted
- 6 Nov 2026
Verified open 14 Nov 2026 · Source: Traffit
About the role
Working as a Data Scientist, you will:
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Develop and implement machine learning algorithms, statistical models and analytical scripts to address specific business challenges.
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Design and conduct experiments, including A/B testing, apply cross-validation techniques and perform statistical significance testing to validate findings and assess model performance.
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Support the implementation of regulatory frameworks, including the EU AI Act, by contributing to model risk management, monitoring model drift and bias, and preparing comprehensive documentation.
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Analyse business and data requirements, identify suitable data sources and design data flows for data collection, transformation and integration.
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Coordinate and improve data collection, transformation and integration processes in cooperation with IT teams, ensuring data accuracy and consistency.
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Design and implement data validation and data quality checks, including automated processes.
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Analyse data and prepare reports, dashboards, visualisations and publications to support data-driven decision-making.
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Support the development and maintenance of databases containing integrated and validated data.
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Organise and coordinate user acceptance testing (UAT) for data-related processes and tools.
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Support data providers and users by developing templates, tools and guidance documentation, as well as assisting with data validation and access-related queries.
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Contribute to the assessment and implementation of data governance policies, ensuring compliance with applicable requirements for new and existing data collections.
Responsibilities
Our client is a large international public institution operating in a multicultural and multilingual environment. The organisation works with a wide range of stakeholders and focuses on developing and implementing policies and initiatives with a significant impact on society. It places strong emphasis on data-driven decision-making, digital transformation and effective data governance.
Requirements
- University degree in Computer Science or a related field.
- A minimum of 7 years of professional experience in data analysis or data science.
- At least 1 year of experience working with data management and visualisation tools in the agricultural sector.
- At least 2 years of hands-on experience with Power BI, R and Python, particularly in data visualisation, trend and anomaly detection, and database environment comparisons.
- At least 2 years of experience using R, Python and SQL, including working with SQL Developer and Excel.
- At least 2 years of experience accessing and retrieving data through APIs.
- Excellent English skills
- Rate up to 180,00 PLN/h + VAT
- Remote work
- Subsidy for peripherals in the amount of 500,00zł
- Working tool (MacBook Pro or Lenovo Legion 5)
- Co-financing of courses related to the position
- Benefits: MultiSport, Medicover
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