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Hello, I'm

Giray Şengönül

Data Analyst Aspiring Data Scientist

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About Me

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Experience

Data Analyst with over 1 year of professional experience applying SQL, Python, and BI tools to deliver actionable insights.
Former iOS Developer with 4+ years designing, developing, and maintaining high-quality mobile applications.

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Education

B.Sc. in Computer Engineering
Fırat University, 2020

Additional Training:
Data Analyst Builder – Online coursework and practical training in data analysis, visualization, and tools.

I’m Giray Şengönül, a Data Analyst passionate about transforming raw data into meaningful business insights. With a strong foundation in software development, I combine analytical thinking and technical skills to solve complex problems.

My background in iOS development, with expertise in Swift and architectural best practices, has honed my attention to detail and commitment to delivering quality results.

Currently, I specialize in SQL, Python, Power BI, and Tableau, and continuously expand my skills to contribute effectively in data-driven environments. My goal is to evolve into a versatile Data Scientist capable of driving impactful decisions through data.

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Browse My Recent

Projects

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Tableau Projects

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PowerBI Projects

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Pandas Projects

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SQL Projects

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Excel Projects

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Python Projects

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My iOS Development Projects

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My Published iOS Training Programs

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Explore My

Professional Experience

Data Analytics & Visualization

  • SQL: Advanced proficiency in data extraction, transformation, and analysis using complex queries and subqueries to optimize business decisions.
  • Python (Pandas, NumPy): Skilled in data manipulation, exploratory data analysis (EDA), and automation of workflows for efficiency.
  • Power BI & Tableau: Proficient in creating insightful dashboards and reports to communicate trends and KPIs effectively.
  • Excel: Expert in advanced Excel functionalities including pivot tables, Power Query, and VBA for data cleaning and automation.
  • ETL Processes & Apache Airflow: Experienced in designing, scheduling, and monitoring ETL pipelines for seamless data integration.
  • Cloud Platforms: Hands-on experience with Microsoft Azure and AWS for scalable data storage, processing, and deployment.

iOS Application Development

  • Swift & SwiftUI: 4+ years building and publishing scalable, user-friendly applications on the App Store.
  • Architecture: Expertise in MVVM and VIPER patterns ensuring modular, testable, and maintainable codebases.
  • Core Data & Networking: Advanced implementation of offline data persistence and RESTful API communication (URLSession, Alamofire).
  • CI/CD & App Store Deployment: Managed automated pipelines and full app release cycles using App Store Connect.
  • Testing: Strong unit and UI testing practices ensuring production-ready stability.
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My Professional Certificates

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Get in Touch

Contact Me

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giraysengonul@gmail.com

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