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Senior Data Scientist

Link Group Show all offers

Olsztyn

Poznań

Gdańsk

Warszawa

Expires Nov 4, 2026

6 days ago

In short

Link Group seeks Senior Data Scientist in Olsztyn to deliver ML products, focusing on personalization and causal inference. Requires 5+ years experience, expertise in Recommender Systems, Uplift Modeling, Classification, NLP, and skills in Python, PySpark, SQL, and cloud platforms.

Keywords

data science machine learning recommender systems causal inference nlp python pyspark sql aws gcp

AI-written summary based on the listing content.

About the Role

We’re looking for a Senior Data Scientist to own and deliver high-impact data products from concept to production. You’ll bridge the gap between business needs and production-grade ML, with a special focus on enhancing user experience through advanced personalization and measuring true business impact using causal inference.

What You’ll Do

Discover: Partner with business leaders to translate complex challenges into actionable ML hypotheses.
Build & Scale: Design, develop, and deploy hands-on recommender engines, advanced classification models, and NLP solutions using large-scale datasets.
Measure Impact: Apply Uplift modeling techniques to move beyond correlation and measure the genuine incremental impact of our products and campaigns.

What You Bring (Core Tech Focus)

5+ years of commercial experience as a Data Scientist delivering end-to-end products.
Specialized ML Expertise:
Proven experience building and optimizing Recommender Systems (at scale).
Hands-on knowledge of Causal Inference, specifically Uplift Modeling.
Deep understanding of supervised learning, focusing on complex Classification models.
Solid background in Natural Language Processing (NLP) and Embeddings knowledge.
Tech Stack: Python(Pandas, Scikit-learn, PyTorch/TF), PySpark, SQL.
Cloud & Infrastructure: Hands-on experience with Databricks, AWS, GCP, Azure, or Snowflake.