I will analyze data and build predictive models

Turkey

I speak English

Data Science,Data Analyst

Hi, I’m Tunahan 👋 a Data Science & Data Analysis specialist who transforms raw data into clear insights and actionable decisions. I work with real-world datasets, handling data cleaning, exploratory ...
About this Gig

I provide end-to-end data analysis solutions using structured data to support better, data-driven decisions. My work begins with understanding the problem and cleaning, preprocessing, and organizing raw datasets to ensure reliable analysis. I perform exploratory data analysis to uncover patterns, trends, and relationships, then build machine learning models for prediction or classification based on project goals. When needed, I test and compare multiple models to select the most suitable one and optimize performance using appropriate evaluation metrics.

Alongside modeling, I focus on clarity and usability. I create simple and clear Tableau visualizations, including KPI dashboards, trend analysis charts, and comparison reports, so insights can be easily understood without a technical background. Example projects include sales forecasting, customer behavior analysis, churn prediction, performance reporting, and general business analytics. I also deliver clean Python code and basic documentation for transparency and long-term use.

My goal is to turn complex data into meaningful insights that enable confident decision-making and real-world impact.

Expertise:

Classification

Churn

Decision trees

Programming language:

Python

Frameworks:

Scikit-learn

Tools:

Jupyter Notebook

Excel