Марія

PHONE LOCATION LINKEDIN
[ [открыть контакты](см. выше в блоке «контактная информация»)] Kyiv, Ukraine, on-site/hybrid [Mariia]

MAIL TELEGRAM GITHUB
[открыть контакты](см. выше в блоке «контактная информация») @mashapresident [mashapresident]

SUMMARY
Results-driven Data Analyst with a Software Engineering background and prior experience in Embedded
Software Development. Skilled in Python, SQL, Tableau/Looker, and A/B testing, with expertise in data
cleaning, analysis, and visualization. Adept at uncovering trends, optimizing performance, and delivering
actionable insights to support business decisions.

SKILLS
Spreadsheets: Pivot Tables, Data Cleaning, Visualization
SQL: Google BigQuery, Advanced Queries, Query Optimization, Common Table Expressions (CTE)
KONOVALOVA Python: Pandas, NumPy, Matplotlib, Seaborn, Exploratory Data Analysis (EDA)

MARIIA
Tableau: Interactive Dashboards, Data Storytelling, Publishing
Statistics: Sampling, Hypothesis Testing, Correlation, Statistical Significance
A/B Testing: Planning, Analysis, Reporting
DATA ANALYST Other Tools: Google Colab, Excel, Git, Looker
Languages: English (Upper-Intermediate), Ukrainian (Native)
WORK EXPERIENCE
Collect and analyze user data from chat interactions to identify trends and key insights
Consolidated Data Analyst
Gather and structure datasets for monthly reporting and performance evaluation.
NDA - [ NOV 2025 - TODAY ] Conduct research to support data-driven decision-making.

Collect and clean data
Data Analyst
Create basic reports and visualizations
FREELANCE - [ MAR 2025 - NOV 2025 ] Support senior analysts

Preparing students for exams
Math Tutor
Emotional support and a personal approach to each student
FREELANCE - [ JAN 2024 - TODAY ] Progress analysis

Combining embedded devices into a circuit
Embedded Software Developer Setting up the OS on the microcontroller
KPI - [FEB 2025 - JUL 2025] Software Development

DATA ANALYST PROJECTS
Project 1 (SQL Projects)
The project generates a report that analyzes accounts and email activity (including sent, opened, and visited messages) across various
countries.
Project 2 (Tableau Projects)
The project visualizes key performance metrics of email campaigns: Open Rate, Click Rate, and CTOR.
Project 3 (Python Projects)
Completed a sales data analysis using three linked datasets — cleaned, integrated, and visualized data to calculate key metrics, reveal trends,
and assess delivery time impact on profitability.
Project 4
A combination of all data analysis tools used to analyze online store order sessions
Project 5
Conducted an end-to-end A/B testing analysis using SQL and Python to evaluate multiple experiments, calculate key conversion metrics, and
determine the statistical significance of test results.

CERTIFICATIONS EDUCATION
Data Analyst course at Mate Academy Bachelor’s Degree in Software Engineering
[ 2025 ] National Technical University of Ukraine Igor Sikorsky
Kyiv Polytechnic Institute [ 2023 - 2027 ]

ACHIEVEMENTS
I helped 7 students improve their math exam scores and get into their dream university
I developed a circuit and software for the clock that stands on the main building of the Kyiv Polytechnic Institute.
I passed the national multimedia math test with a maximum score of 200/200.
I have mastered five dance styles and continue to practice them.