Оксана

Oksana
Gurzhyi
Junior Data Analyst
SUMMARY
Data Analyst skilled in SQL for data aggregation and queries, with proficiency in MS Excel,
Google Sheets, and Python. Experienced in ad performance metrics, marketing analytics,
and data visualization using Tableau, Looker Studio, Powr BI and Amplitude. Strong
analytical thinker. I am skilled at working effectively in a team and openly collaborating with
colleagues to achieve common goals.

CONTACTS
PROJECT EXPERIENCE
Striker Performance Classification | Python, scikit-learn, pandas, matplotlib
[open contact info](look above in the "contact info" section)
Analyzed data of 500 football strikers using feature engineering, KMeans clustering, and
[open contact info](look above in the "contact info" section)
logistic regression. Identified high-performing players with 97% model accuracy.
LinkedIn
Telegram Revenue Metrics
GitHub Conducted analysis of revenue metrics, including churn rate, revenue churn, seasonal trends,
and user behavior. Evaluated key performance indicators (KPIs) to identify patterns and
Domat/Ems, Switzerland
drivers of revenue changes. Assessed the impact of user churn on revenue dynamics and
analyzed seasonal effects on user activity and spending. Delivered actionable insights and
recommendations to enhance user retention, increase ARPU, and optimize overall revenue
performance.

HARD SKILLS
A/B Testing with Python
Conducted an A/B test to evaluate the impact of a new subscription page design on
SQL conversion rates in a mobile application.
Python (Pandas, NumPy, Matplotlib, Analyzed user behavior data, performed statistical hypothesis testing, and delivered insights
Seaborn, SciPy) that informed product decisions.
A/B Tests
Conversion funnel
Data Collection, Cleaning, and Preprocessing
Evaluation of the sales funnel and customer onboarding journey (using Tableau)
Statistical Analysis and Visualization
Revenue and Delivery Insights Dashboard
The Tableau dashboard features a set of visualizations highlighting key performance metrics
across U.S. states.
TOOLS
WORK EXPERIENCE
MySQL
Google BigQuery Independent Entrepreneur Aug 2010 - Feb 2022

Google Sheets Launched and managed a small business from scratch — a cosmetics and perfume store.
Handled inventory management and independently prepared financial reports.
MS Excel
Python (Pandas, NumPy, Matplotlib, Lecturer of the Department of Mathematical
Seaborn, SciPy) Information and General Technical Disciplines
Tableau, Amplitude
Donetsk Institute of Tourist Business Sep 2005 - Jun 2010
Power BI
Conducted classroom instruction and training, supervised diploma projects, contributed to
GitHub departmental research activities, and authored scientific articles. Strong focus on
communication and academic development.

LANGUAGES EDUCATION

English - upper-intermediate
IT School GoIT
Data Analyst Aug 2024 - Jan 2025
German - pre-intermediate

IT School GoIT
Full stack developer Dec 2022 - Nov 2023

Donetsk Institute of Tourist Business
Specialist Degree in Management 1996 - 2001