Богдан

BOHDAN POSHTARENKO
DATA ANALYST
Warsaw, Poland | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

PROFILE
Data Analyst with 4 years of experience across microfinance and iGaming. Strong in PostgreSQL, Excel, Metabase, and Power
BI, with additional hands-on experience in Python. Combines SQL-based analytics for cross-functional teams with the
operational execution of customer communication, promotional, and loan-prolongation campaigns. Skilled at translating business
requests into accurate datasets, repeatable reports, and auditable metrics.

PROFESSIONAL EXPERIENCE
Data Analyst | NDA Microfinance Company Jun 2026 - Present
Prepare and launch customer communications for promotional campaigns, loan-prolongation offers, and other operational initiatives.
Write PostgreSQL queries and provide ad-hoc datasets, reports, and data checks for the needs of different business departments.
Build customer and credit selections, validate campaign parameters and recipient lists, and reconcile outputs before launch.
Support operational reporting in Metabase and Excel and investigate discrepancies in campaign and collection metrics.
Middle Data Analyst | NDA Company Sep 2024 - Apr 2025
Built a Power BI dashboard for comparing campaign performance across countries and regional segments.
Automated four recurring Python reports: ARPU, customer base dynamics, provider comparison, and bonus cost analysis.
Analyzed retention and return rates, maintained Asia-region data, and delivered ad-hoc analyses for cross-functional teams.
Middle Data Analyst | Slotor777 Nov 2022 - Sep 2024
Built end-to-end reporting pipelines from PostgreSQL extraction and Python transformation to Excel/VBA delivery.
Created email and SMS campaign reporting that contributed to an approximately 50% CPA reduction and a 150% increase in
average customer spend.
Supported the design of a retention bonus system and developed customer profiling and segmentation used in marketing strategy
and market positioning.
Junior Data Analyst | The Originals Jul 2022 - Nov 2022
Developed product-ranking logic aimed at improving website conversion.
Prepared foundational reports on customer behavior and customer classification.

TECHNICAL SKILLS
SQL & Databases: PostgreSQL, complex joins and CTEs, window functions, data validation
Python: Pandas, NumPy, Matplotlib, Jupyter, reporting automation
BI & Reporting: Metabase, Power BI, Excel, VBA, Power Query
Analytics: Collection KPIs, operational performance, retention, campaign analysis, segmentation

EDUCATION & LANGUAGES
BSc in Economics, National University of Kyiv-Mohyla Academy | Finance, Banking and Insurance | 2018-2022
Languages: Ukrainian - Native; Russian - Fluent; Polish - C1; English - B2