Олександр

OLEXANDR CHOORSIN
D A T A A N A L Y S T

CONTACT PROFILE
[open contact info](look above in the "contact info" section) Data Analyst with 20+ years of commercial background in the B2B sector,
specializing in converting raw business data into strategic decisions to
[open contact info](look above in the "contact info" section)
optimize revenue. Proficient in SQL, Tableau, Power BI, and Advanced Excel.
Telegram Strong understanding of funnel analysis, cohort analysis, customer retention,
and risk management. Graduated from an intensive Data Analytics program
Linkedin
at Mate academy. Looking for a role as a reliable, autonomous specialist who
Dnipro, Ukraine speaks the language of business.

EDUCATION WORK EXPERIENCE

Graduated: 1990 Dunapack Packaging 2012 – 2023
Business & Data Analyst (Regional Representative)
DNIPROPETROVSK INDUSTRIAL
AND ECONOMIC COLLEGE Conducted regular revenue structure analysis: investigated seasonal
fluctuations (Q4 peaks) and analyzed profitability by product
Degree in Electrical
categories and client cohorts. Implemented Pareto analysis
Engineering
(identified top 20% of clients generating 80% of net profit).
Developed and maintained analytics models to monitor customer
MATE ACADEMY base profitability. Analyzed margin percent (margin_percent) trends
across client cohorts to detect drops in profitability and provide data-
DATA ANALYST driven recommendations for management.ata to streamline
operations and ensure 100% contract fulfillment.
VLADYCHYNSKA CONSULTING Executed matrix analysis (ABC analysis of product items and clients)
and raw material analysis. Studied the direct correlation between
Professional Training:
material types and financial returns to optimize product assortment.
“Service Vision”
Built an end-to-end data processing pipeline: from writing complex
SQL queries in SQLite to extract raw data, to data cleaning in Excel and
SKILLS data visualization for strategic management decisions.
TD Lunapak
Spreadsheets: Head of Sales Department
2002–2012
SQL Developed and grew client base from scratch (zero-based growth
Python strategy).
Streamlined sales processes and document management workflows.
Tableau
Led and managed a team of sales managers (team leadership and
Statistics coaching).
A/B Testing PORTFOLIO:
E-commerce Global Sales Analysis | SQL, Python (Pandas/Matplotlib)
LANGUAGES Analyzed a large-scale international e-commerce dataset to evaluate user
purchasing behavior and marketing effectiveness. Proved that verified users have a
4% higher Average Order Value (AOV) using statistical testing (Mann-Whitney U-test)
English (Intermediate) in Python.
Evaluated the performance of marketing channels and identified that Social Search
drives the highest Conversion Rate (9.73%). Calculated a strong correlation (r = 0.81)
between paid and organic search traffic.
Developed interactive business dashboards in Tableau to visualize strategic market
insights. Provided actionable recommendations for traffic scaling in the premium
segment and loyalty campaigns to reactivate dormant users (39% of the customer
base).