Open to opportunities

Anastasia User

@anastasiauser2

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Data scientist delivering production ML, reliable data pipelines, and actionable analytics.

Russian Federation

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What I'm looking for

I seek a collaborative role building production ML and analytics, with clear impact on product/risk, reproducible pipelines, and opportunities to lead experiments and scale data systems.

I am a data scientist with 5+ years of experience building production-ready ML models, reliable data pipelines, and actionable analytics to support business decisions and reduce operational risk.

I have improved credit scoring AUC from 0.9 to 0.98, reduced new-loan default rates by 12%, and cut forecasting MAPE from 18% to 2.5% through feature engineering, model optimization and robust experimentation.

I collaborate with product, risk and business teams, design A/B tests, build dashboards and automate pipelines (Airflow, GitLab CI/CD, Docker) to accelerate experiments, ensure reproducibility and drive measurable impact.

Experience

Work history, roles, and key accomplishments

Data Scientist

Korona Pay

Dec 2023 - Apr 2025 (1 year 4 months)

Analyzed large-scale customer and credit data and improved scoring quality, raising AUC/ROC from 0.90 to 0.98 and reducing new-loan default rate by 12%; built A/B tests and dashboards to increase loan application conversion by 7%.

Python SQL A B Testing Machine Learning Airflow Model Evaluation Data Visualization

Data Scientist

Gazprom Neft

Apr 2023 - Dec 2023 (8 months)

Developed ML models to predict oil flow rate and segment industrial images, reducing forecasting MAPE from 18% to 2.5% and improving IoU from 0.62 to 0.99 while automating pipelines and monitoring for reproducibility.

Python LightGBM CNN PyTorch MLFlow Docker Airflow

Data Scientist

Protei

May 2020 - Mar 2023 (2 years 10 months)

Performed data exploration, visualization, and reporting; developed and optimized data pipelines and automation to cut data preparation time by 50% and accelerate experiment launches.

SQL PostgreSQL Clickhouse Airflow Docker Metabase Data Visualization ETL

Java Developer

Protei

May 2020 - Mar 2023 (2 years 10 months)

Developed and supported a billing system using Java 8 and Spring (MVC, Security, Data), implementing online/offline call, SMS and GPRS billing modules and optimizing system architecture.