Joey Gumbanjera
Warszawa
Summary
Results-driven Data Analyst with a strong foundation in computer science and a passion for data-driven decision-making in risk management and business strategy. Proficient in Python, R, SQL, and data visualization tools such as Power BI and Tableau. Excels in analyzing large datasets, identifying trends, and providing actionable insights to support business decisions. Experience in technical problem-solving, customer service, and data analytics allows for effective contribution to risk assessment, strategic consulting, and operational efficiency. Offers a strong foundation in analytical thinking and problem-solving with a readiness to learn and develop in challenging environments. Brings understanding of data analysis and process optimization to contribute to operational efficiency. Ready to utilize and further develop skills in data analysis and process improvement.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Customer Service Representative
Foundever
05.2022 - 12.2023
- Analyzed customer interaction data to identify recurring issues
- Compiled customer feedback reports that informed process improvements, increasing customer satisfaction
- Communicating with customers through various channels
Help Desk Technician
Mukuru
03.2020 - 01.2021
- Managed system access controls and security configurations, ensuring compliance with data protection standards
- Implemented automation scripts for IT support tickers
- Diagnosed and resolved technical problems with computer hardware and software to minimize downtime and maintain productivity
Education
BACHELOR OF ENGINEERING - Computer Science
VISTULA UNIVERSITY
Warsaw, Poland03-2025
Skills
- Python
- Power BI
- R
- Communication
- Creative thinking
- Tableau
- Statistical analysis
- SQL
- Excel
- Risk Analysis & Forecasting
- Data cleaning and preparation
Certification
- Maven Analytics - Advanced Excel Dashboard Design
- Maven Analytics - Thinking like an analyst
- Maven Analytics - MySQL Data Analysis
- Udemy - The Data Science Bootcamp
Timeline
Customer Service Representative
Foundever
05.2022 - 12.2023
Help Desk Technician
Mukuru
03.2020 - 01.2021
BACHELOR OF ENGINEERING - Computer Science
VISTULA UNIVERSITY
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