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Tetiana Levchenko
CONTACT DATA ANALYST
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SUMMARY
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Data Analyst with skills in SQL, Python, Tableau, and statistical analysis.
Cherkasy, Ukraine, remote Experienced in data validation, exploratory data analysis, dashboard
creation, and working with structured datasets.
Telegram Strong analytical thinking and fast learning ability.

LinkedIn EXPERIENCE
Junior Data Analytics Projects | 2025 – present
SKILLS Performed exploratory data analysis (EDA) using SQL and Python
Cleaned, validated, and analyzed structured datasets
SQL Built dashboards and visualizations in Tableau
Advanced Queries Applied statistical methods and A/B testing fundamentals
JOINs Worked with data validation and inconsistency detection
CTE
Used AI tools to support analytics workflows and research
Window Functions
Query Optimization Auditor Assistant / Accountant | LVV-AUDIT | 2007 – 2025
SPREADSHEETS Analyzed financial data and validated reporting accuracy
Excel Performed data reconciliation and discrepancy detection
Google Sheets Worked with Excel reporting and structured datasets
Pivot Tables Supported financial documentation and data consistency
Data Cleaning
processes
PYTHON
Translator & Localization Specialist (Freelance Projects) | 2011 – 2025
Pandas
NumPy Worked with large volumes of structured medical, technical, legal, and
Matplotlib financial information
Seaborn Ensured terminology consistency and information accuracy
EDA
Performed quality control and validation of multilingual content
TABLEAU Used AI-assisted tools to improve workflow efficiency
Dashboards
Data Visualization
Data Storytelling
PORTFOLIO
STATISTICS & A/B TESTING 🔗Tableau 🔗Google Sheets 🔗Python
Hypothesis Testing • A dynamic Tableau dashboard • Built an interactive dashboard
• Analyzed 350K+ e-commerce
Sampling sessions using Python, Pandas,
for comparative KPI analysis for revenue, profit, and sales
SQL, and BigQuery
Correlation across custom time periods trend analysis
Statistical Significance • Analytical visualizations and
• Visualized trends in sessions, • Conducted ABC/Pareto
customer behavior insights with
AI & GenAI registration rate, and revenue analysis to identify top-
Matplotlib & Plotly
performing product categories
AI-assisted analytics
• Identified KPI trends and
workflows • Revenue, traffic, retention, and
performance changes • Created KPI visualizations and
Prompt engineering seasonality analysis on
business performance reports
structured datasets
AI-assisted research
Validation via AI tools

OTHER TOOLS
Jupyter Notebooks EDUCATION ACHIEVEMENTS
Google Analytics
Git Mate Academy Successfully transitioned from
LANGUAGES Data Analyst course accounting and translation into data
analytics through intensive self-
English C1 (Advanced) The National Academy of Statistics, learning and portfolio development
German (basic, not actively
used)
Accounting and Audit
Specialist, Accounting and Audit Developed strong analytical,
research, and structured problem-
Taras Shevchenko National University solving skills across multiple
professional domains
Specialist, Philology, English & German
Teaching, Translating
Experience working with complex
Cherkasy Medical Academy medical, financial, legal, and
technical information requiring high
Junior Specialist, Nursing
accuracy and attention to detail