Open to opportunities

Krystian Korzec

@krystiankorzec

Message

I build predictive models, pricing systems, and data pipelines that improve revenue and operational efficiency.

Poland

Message

What I'm looking for

I'm interested in data science work focused on statistical learning and predictive modeling, including boosting and bagging, using R, R Shiny, Python, and modern data platforms.

At Allegro, I develop pricing machine learning models that optimize product price reductions and affect revenue and sales volume, while implementing predictive routing for call-center contact allocation.

Previously, I built data-intensive applications and pipelines at Allianz Group, recommendation engines at Nowa Era, and house-price prediction models and dashboards at PKO Bank Polski. I work across Python, R, SQL, cloud data platforms, and machine learning, with particular interest in statistical learning, predictive modeling, boosting, and bagging.

Experience

Work history, roles, and key accomplishments

Current

Data Scientist

Current

Allegro

Jul 2024 - Present (2 years 1 month)

Developing pricing Machine Learning models to optimize and
select products for price reductions, directly impacting revenue and sales volume. - Implement-
ing Predictive Routing models to optimize the allocation of contacts to the call center, improving
operational efficiency. - Tech Stack: Python, GCP, BigQuery, GitHub, Airflow.

Python GCP BigQuery GitHub Airflow Machine Learning predictive modeling

Data Science Specialist

Allianz Group

Jul 2023 - Jul 2024 (1 year)

Developed and maintained data-intensive applications and
pipelines using Python (PySpark, Pandas, Dash, Flask). - Utilized Amazon EMR Studio to per-
form large-scale data engineering and processing tasks.