Position: Senior Data Analyst / Data Scientist
Category: Data Analyst
English level: fluent
Years of experience: 5

•Senior Data Analyst / Data Scientist at Team International:
-Developed ML models optimizing ad campaign (avg. monthly spend >$10M) metrics: CTR & Visit rate increase > 80%, Viewability rate increase > 20% while maintaining sufficient impressions # and inventory diversity.

-Built in-house A/B testing framework supporting 15+ metrics, producing comprehensive experiment reports with stylish visuals. Time spent on experiment results analysis decreased by over 60%

-Segmented ad Campaign keywords lists & intent data using NLP approaches, the solution was used to assess whether campaign is coherent, set-up in best possible way and could target the right audience. Pairing the solution with recommender system in order to propose changes to account/keywords list allowed to make campaigns more consistent and to reach better audience.

-Created 20+ dashboards for decision-makers to assess key campaign metrics, inventory health, and pacing. Implemented rule-based alerts.

•Data Analyst at Vodafone Ukraine:
-Automated reporting processes for the entire department by making transition from (semi-)manual reports to Power BI dashboards and scheduled Python scripts which generate Excel/pdf reports, reducing report-related workload by over 66% and minimizing human errors.

-Improved Analytical model behind "Network Quality Improvement Projects" (deciding which base stations to upgrade based on network quality & financial parameters), resulting in a more than 20% increase in average return on investment per base station over a span of two years.

-Utilized Deep Packet Inspection data to analyze mobile internet usage and presented actionable insights to management regarding the impact of triggers such as 4G launch or Covid on mobile traffic consumption patterns.
Data Analyst with more than 5 years of experience in extracting insights from terabytes of in-house data, preparing actionable reports for decision-makers, building ETL pipelines and using ML algorithms to solve business problems.