Senior Data Scientist

15 октября 2026 г.

Senior

Warsaw, Poland

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Исходная вакансия на польском
Скорее всего, польский нужен для работы. Точнее скажет работодатель

Описание

PZU Tech SA is hiring a Senior Data Scientist for OLIMP, a strategic transformation program of the PZU Group building a modern claims and benefits ecosystem based on data, automation, AI and workflow processes. The role focuses on fraud risk models and covers the full model lifecycle, from data and features to evaluation and deployment. The program aims to set new customer service standards in the Polish insurance market.

Обязанности

Building, developing and maintaining models assessing fraud risk
Owning the full model workflow from data and features through effectiveness evaluation to deployment
Translating business problems into analytical tasks and choosing the method that fits the problem, whether data is tabular, text or graph based
Testing new methods and new data sources
Explaining and documenting results
Collaborating with business experts and developers, including on code

Требования

Approximately 3 years of experience as a Data Scientist with at least one model shipped to real production use
Able to evaluate how a model will behave in production and justify its predictions
Thinks critically about data and understands how its origin affects the model
Understands that strong business knowledge is essential and can gather it from domain experts
Able to present results to non-technical stakeholders
Strong knowledge of SQL
Builds classification models on tabular data, from logistic regression to gradient boosting
Skilled in feature engineering
Able to choose appropriate validation schemes and metrics for the problem
Able to plan experiments and assess their outcomes
Knows model explainability methods such as SHAP
Comfortable programming well enough to run experiments independently, language is secondary
Tracks new machine learning approaches and can judge which ones are worth testing
Understands when an LLM is warranted and when a simpler method works better
Nice to have: experience with fraud, AML or credit risk
Nice to have: knowledge of the insurance industry
Nice to have: network analysis and graph data
Nice to have: NLP, especially on Polish-language texts
Nice to have: post-deployment model monitoring
Nice to have: experience working with Java code and a shared repository with developers including tests and code review

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