Андрій

Andrii Marchuk
Data Analyst
[відкрити контакти](див. вище в блоці «контактна інформація») Cluj-Napoca, Romania [відкрити контакти](див. вище в блоці «контактна інформація») Telegram
Linkedin

PROFILE
I am a Data Analyst with extensive experience in the IT field, where data played a key role in achieving results.
My passion for analysis and mathematics, cultivated at Kyiv-Mohyla Academy and reinforced by participation
in Math and Physics Olympiads (including at the regional level), naturally led me to this field. Experience in IT
recruitment also honed my systematic approach skills.
Using my hands-on experience with Python, Google Sheets, Tableau and other technologies I uncover key
insights and help businesses make informed decisions. My unique background allows me to combine business
understanding with deep data analysis to achieve exceptional results. I possess Upper-Intermediate English
proficiency.

SKILLS
Spreadsheets: Google Sheets, Excel, Pivot Tables, Data Cleaning
SQL: Advanced Queries, Window Functions, Query Optimization, Common Table Expressions (CTE)
Python: Pandas, NumPy, Matplotlib, Seaborn, Exploratory Data Analysis (EDA)
Data Visualization: Tableau, Power BI, Looker Studio, Data Storytelling, Publishing
Statistics: Sampling, Hypothesis Testing, Correlation, Statistical Significance
A/B Testing: Planning, Analysis, Reporting
Other Tools: Jupyter Notebooks, Google Analytics, Git
Languages: English (Upper-Intermediate), German (Intermediate), Norwegian (Pre-Intermediate)

PROFESSIONAL EXPERIENCE
Data Analyst, NDA 01/2025 – Present
Data Collection and Preparation
•

Conducted Exploratory Data Analysis (EDA) using Python (Pandas, NumPy)
•

Extracted and transformed data using SQL queries, with results further processed
•

and visualized in Google Sheets dashboards.
Created interactive dashboards and reports in Power BI and Tableau to visualize
•

key metrics and insights.
Prepared reports on A/​B test outcomes, providing business recommendations
•

Portfolio:
Project 1 (SQL Projects) – analyzing account creation dynamics, user activity based
on emails data, and evaluating behavior in categories such as sending interval, account
verification, and subscription status. The data will allow for comparing activity
between countries, identifying key markets, and segmenting users by various
parameters. Results are displayed in Looker Studio.
Link to review⁠
•

Project 2 (Python Projects) – the dataset contains information regarding sales of
the company's products, which operates in the global market and sells goods in
physical stores and online stores. The main goal is to clean and analyze the data;
finding valuable insights into the company's activities.
•Link to review⁠
Project 3 (Tableau Projects) – collection of my works.
Link to review⁠
•

IT Recruitment team lead, Evolved Ideas 01/2022 – 01/2025
Implemented and stabilized workflow
•

Hired people with various technical stacks
•
 Making consultations and participate in developing company HR/​Recruitment
•

strategy
Creating KPIs for different tasks
•

EDUCATION
Master Degree in Applied Mathematics, 2009 – 2015
National University of "Kyiv-Mohyla Academy" Kyiv, Ukraine

COURSES
Data Analyst course, Mate academy 2025
School of Finance for non-financial managers, Kyiv-Mohyla Business School 2013

ACHIEVEMENTS
Teached math for group of high school pupils during vacations, 2024
Introduction Center for Refugees (Bergen, Norway)
The Diploma project was graded at 91 points 2015
Winner of the University Football Championship 2014
Finished school with a Gold medal 2009