Olena

OLENA DELIMARSKA
DATA ANALYST

SUMMARY SKILLS

Background in e-commerce and Spreadsheets: Pivot Tables, Data Cleaning, Visualization
marketing domains, with focus on SQL: Advanced Queries, Window Functions, Query Optimization,
sales performance, customer
Common Table Expressions (CTE)
behavior, and campaign
Python: Pandas, NumPy, Matplotlib, Seaborn, Exploratory Data
effectiveness.
English (Upper-Intermediate) and Analysis (EDA)
Italian (Pre-Intermediate), enabling Tableau: Interactive Dashboards, Data Storytelling, Publishing
effective communication in Statistics: Sampling, Hypothesis Testing, Correlation, Statistical
international teams.
Significance
transforming complex data into
A/B Testing: Planning, Analysis, Reporting
actionable insights that drive business
growth Other Tools: Jupyter Notebooks, Google Analytics, Google Ads,
Skilled in building clear reports, Excel, Git
identifying trends, and supporting Languages: English (Upper-Intermediate), Italian (Pre-
decision-making processes in dynamic
intermediate)
environments

EXPERIENCE
EDUCATION Data analyst

LLC TERFRAST, 2023-2025

Academy of labor, social relations and Analyze sales data
tourism Track customer behavior
Bachelor’s degree; “Economics of Create dashboards and reports
Enterprise”
Monitor KPI
Forecast sales and demand
Identify customer segments
Ensure data quality and integrity
CONTACTS

[відкрити контакти](див. вище в блоці «контактна інформація»)
Marketing analyst
[відкрити контакти](див. вище в блоці «контактна інформація»)
EMOTIONGROUP, 2021-2023
LinkedIn
Telegram Analyze visitor traffic data
Kyiv, Ukraine Monitor and report on campaign performance
I can work during blackouts using Evaluate the return of investment
batteries and fiber optic internet.
Use customer surveys and feedback
Segment the audience
Track loyalty program data