Data Scientist
Philip Morris International
A global tobacco company with operations across many markets, known for cigarette brands and a growing portfolio of smoke-free products.
Aug 2026 — PresentRebuilt and automated a new cigarette market share forecast, cutting MAE from 63% to 3.4%, and built a campaign targeting model that saved 15% of budget.
• Improved the market share forecasting model for newly launched cigarettes (NPL CC Model): redesigned and rebuilt the model logic, reducing MAE from 63% to 3.4%, and automated the model pipeline.
• Developed a classification model to select retail outlets for sales boost campaigns (PR-AUC 64%), which saved 15% of the campaign budget.
Data Scientist
Kcell
A major Kazakhstan mobile operator providing consumer and business telecom services under the Kcell and Activ brands, along with digital services.
Jun 2026 — Jul 2026Created SQL logic to identify subscribers using a competitor's second SIM and designed a model to segment small and medium business taxpayers for targeted tariffs.
• Wrote an ad-hoc SQL solution that identifies subscribers who use a second SIM of another telecom operator based on their behavioral data, enabling more targeted advertising.
• Designed the logic of a model that identifies potentially good and bad taxpayers among small and medium businesses, in order to offer them targeted tariffs.
Data Analyst
Netcracker Technology
A global software and services provider whose platforms support telecom operators' business operations, networks, and digital transformation.
Feb 2026 — May 2026Created and updated data marts, wrote documentation, and built KPI dashboards, with reported gains in system efficiency, data flow, and revenue and sales accuracy.
• Created data marts (catalog, CPQ) and wrote FDS and DDS documentation, which improved system efficiency by 13.7%; updated existing data marts, optimizing data flow by 6%.
• Built Apache Superset dashboards with documentation and took part in the automation and deployment cycle (Kubernetes, Git, Jenkins) for KPI visualizations, resulting in a 16% improvement in revenue and sales accuracy by internal metrics.
Data Analyst
Kazakhtelecom
Kazakhstan's national telecommunications operator, providing fixed-line, mobile, broadband, and related digital services across the country.
Jun 2024 — Aug 2024Analyzed billing and survey data, built debt tracking dashboards, and supported campaigns, with reported reductions in debtors and an increase in new customers.
• Analyzed billing data using SparkSQL and built Qlik Sense dashboards to track customer debts, helping to reduce total debt volume by 2% and cut the share of debtors from 30% to 16%.
• Worked with user survey data and took part in promotional campaign development, which increased the number of new customers by 8%; updated data marts in PostgreSQL.
