- Worked on improving online market representation by increasing market coverage- Worked on data quality checks and fraud detection

Worked on demand forecast: - Developed an approach to account for demand transfer inside one category - Improved holiday demand forecast

- Adapt materials for video course and webinars- Was selected to record a video course as a leading lecturer

Worked on promo optimization project with expected value more than billion rubles:- Contributed to ETL, cannibalization and complementarity modules- Developed brandlines generation algorithm- Developed backend part of Tableau dashboard- Set CI/CD for project on Gitlab- Lead code adaptation for Hadoop cluster (from clouds to on-prem)

- Worked on a recommendation system, the result is an increase in the conversion rate of acceptance of offers by 10%- Worked on tariff s simplification based on predicting the subscriber's feedback (accept, contact call center, etc.)- Investigated automatic model retraining using AutoML H2OProjects: - "Shake your phone" recommendation system which selects personalized offers to subscribers - simplify tariff line based on predicting the subscriber's feedback (accept, contacting call center, etc.) - down-sell - churn

- Supported electronic document management system- Developed documentation