Олександр

Oleksandr Muchak
Data Analyst
Experienced data analyst specializing in transforming complex data into understandable insights using Python, SQL,
and visualization tools like Tableau. Skilled in A/B testing and statistical analysis to inform business decisions. As a
strong communicator, I effectively translate the language of numbers into actionable recommendations for any
audience. I aim to use in-depth data analysis to optimize business processes and stimulate company growth.

[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)

Kyiv, Ukraine [open contact info](look above in the "contact info" section)

github.com/OleksandrMuchak

WORK EXPERIENCE SKILLS
Data Analyst – Freelance (Client: SDC Verifier) Spreadsheets: Pivot Tables, Data Cleaning, Visualization
Self-Employed / Freelance
09/2024 - Present, Kyiv
SQL: Advanced Queries, Window Functions, Query
SDC Verifier – Dutch company building structural simulation software for engineers.
Optimization, Common Table Expressions (CTE)
Achievements/Tasks
Analysed structural simulation results and delivered clear, actionable
Python: Pandas, NumPy, Matplotlib, Seaborne, Exploratory
reports
Data Analysis (EDA)
Automated data extraction and processing using Python, reducing manual
effort by 95% (from 8 hours to 30 minutes).
Tableau: Interactive Dashboards, Data Storytelling,
Built Tableau and Excel dashboards to visualize stress, movement, and
Publishing
safety
Handled client communication, clarified needs, and delivered regular
updates Statistics: Sampling, Hypothesis Testing, Correlation,
Statistical Significance

Data Analyst A/B Testing: Planning, Analysis, Reporting
Wine Bureau | Goodwine
03/2022 - 09/2024, Ukraine Other Tools: Jupyter Notebooks, Google Analytics, Excel,
Wine Bureau – Ukraine’s top importer of wine and gourmet food (brand: goodwine)
Git
Achievements/Tasks
Queried ERP data with SQL to improve delivery tracking and reporting
Languages: English (Intermediate)
Automated data cleaning and reporting with Python, saving
approximately 10 hours of manual work per week
Enhanced demand forecasting accuracy by 15%, resulting in a 10%
reduction in Out-of-Stock rates for key products.
VOLUNTEER EXPERIENCE
Private Entrepreneur
Blood Donor - Center for Pediatric Cardiology and
The "PROFESSIONAL" retail chain Cardiac Surgery (2000 - Present)
2008 - 04/2022, Ukraine
Regular donor at the Center for Pediatric Cardiology and Cardiac
Specialized in professional power tools for construction, industry, and public sector Surgery, supporting life-saving treatments for children.
clients, including the army and police
Achievements/Tasks
Community Infrastructure Leader (Kovel Raion, Volyn)
Grew revenue by 11% annually through strategic client acquisition (02/2022 - 12/2023)
Boosted customer satisfaction by 31% through targeted improvements in Managed cross-functional teams for wartime infrastructure projects
service and communication Directed planning and execution of water and power supply
initiatives
Managed a team of 20+ employees, ensuring productivity
Implemented incident management processes to ensure community
resilience

EDUCATION
CERTIFICATES
Master's Degree, Chemical Technology
Khmelnytskyi National University Mate Academy
Data Analyst

Bachelor's Degree, Radiochemistry Surfalytics
Big Data Analyst
Sevastopol National Institute of Nuclear Energy and
Industry Outstanding Service Award
Recognized for exceptional contributions to community resilience and
infrastructure management during wartime in Kovel Raion, Volyn