Vasyl Hadzheha

Background

About Vasyl Hadzheha

Data Analyst & Data Visualization Specialist with experience in healthcare, economics, and business research. Skilled in Python, R, SQL, and advanced data visualization tools. Background includes building automated reporting systems, designing interactive dashboards, and applying machine learning methods (clustering, PCA, recommendation systems, forecasting) to extract insights from complex datasets. Experience in international companies and across diverse sectors, supporting decision-making with data-driven insights. Passionate about transforming raw data into actionable strategies and continuously improving analytical solutions. TECHNICAL SKILLS Programming & Analytics: Python (Pandas, NumPy, Matplotlib, Seaborn)| R (ggplot2, dplyr, clustering, PCA)| SQL (MySQL, PostgreSQL – queries, joins, ETL automation)| Google Apps Script | C#(Windows services – basic) Data Visualization & BI: Power BI (interactive dashboards, reporting)| Excel (pivot tables, macros, advanced functions)| Data storytelling & presentations Databases: MySQL, PostgreSQL | Data extraction from specialized medical systems Machine Learning & Statistics: Clustering (K-means, hierarchical, fuzzy)| PCA | Forecasting & time series | Recommendation systems Cloud & Big Data: Google BigQuery (querying, reports, optimization)| Basic ETL & scalable data workflows Web & Tools: WordPress (data updates, dashboard integration)| HTML, CSS, JavaScript (basic) Other: Git | REST API integration | Workflow automation