Наталя

Demarchuk Natalia
Junior Data Analyst
Junior Data Analyst with strong analytical thinking and practical experience gained
through professional training in data analytics. Skilled in SQL, Python, Google
Sheets, BigQuery, Tableau, A/B testing. Successfully completed course projects
involving the analysis of advertising and product performance, identifying insights
that improve user engagement and conversion rates. Motivated to apply analytical
skills, attention to detail, and life experience to support data-driven business
decisions and continuous improvement.

CONTACTS PROJECT EXPERIENCE
[открыть контакты](см. выше в блоке «контактная информация») Time Series, Profitability Analysis & Delivery Visualization
Email: [открыть контакты](см. выше в блоке «контактная информация») Tools: Tableau
Dnipro, Ukraine Description & Tasks:
Linkedin • Built monthly time series of sales and profit (2020–2023).
Telegram • Analyzed profitability by subcategory and shipping method.
• Created relative profit (%) field with two-color scale and summary metrics.
HARD SKILLS • Calculated average delivery days by shipping type and by US state, visualized on
Data Cleaning & Preparation map.
Exploratory Data Analysis (EDA) • Calculated order counts by delivery days.
Data Visualization • Presented data on a dashboard with filters.
A/B Testing (A/C Testing) Result: Revealed patterns in sales and profitability and improved delivery time
Funnel Analysis & visualization to support data-driven decisions.
User Behavior Analysis
Cohort Analysis Query for GA4 Events, Users, and Sessions Data for 2021
KPI & Metrics Tracking Tools: BigQuery, Google Analytics 4
SQL querying Description: Developed a SQL query to obtain 2021 GA4 data on events, users,
(JOINs, Aggregations, and sessions, including key user and conversion events.
Window Functions) My Tasks: Extracted 2021 data, converted timestamps, and tracked key
Python for Data Analysis (Pandas, interactions (session start, product view, add to cart, checkout, shipping info,
payment info, purchase).
TOOLS Result: Created a table enabling tracking of user behavior and conversions for
PostgreSQL further analysis.
Google BigQuery
Looker Studio
WORK EXPERIENCE
Tableau Senior Legal Counsel
Google Sheet JSC CB PrivatBank
Google Analytics 4 2008–Oct 2025
Amplitude • Handled claims and legal proceedings
Python (Pandas, Jupyter Notebook) • Contract drafting and review
• Advisory services
SOFT SKILLS • Legal analysis
Helpfulness • Statutory interpretation
Cooperation
Time management EDUCATION
Punctuality
GoIT Oles Honchar Dnipro National University
Meeting deadlines
Data Analysis Specialist Degree in Law
Responsibility
2025 2003-2008
Analysis and decision making
Honesty

LANGUAGES
English – Pre-Intermediate
1
Ukrainian – Native