Position: Data Scientist
Category: Data Science
English level: fluent
Years of experience: 3


Yandex:

 Conducted regular hypothesis testing for the tests that affected 60M auditory
• Revised hypothesis testing pipeline and improved speed of AB experiments by reducing false alerts by 20%
• Helped to improve search engine result page for 60M users by analyzing the results of dozens of design-related production AB experiments
• Improved AB-test procedure through adding a number of UI and UX features to internal AB-testing service

Kolesa Group:

• Reduced costs of data preprocessing pipeline by 70% using BigQuery data optimization
• Trained clustering models which helped to identify novel customer group and improve total revenue of the car loan branch by 2%
• Built dynamic dashboards in Power BI for 4 different product teams, which helped top management to control critical metrics across various business branches
• Identified key area to future development of the car loan branch by creating Customer Journey Map (CJM)
• Mentored a colleague with a more minor grade. Conducted regular code-review