Joseph Estelloso
Data Analyst with 4+ years of experience specializing in Excel automation, Power Query, and KPI dashboard development
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About
Data Analyst with 4+ years of experience specializing in Excel automation, Power Query, and KPI dashboard development. Proven ability to reduce manual reporting workloads by up to 50% and improve data accuracy through automated solutions. Experienced in cross-functional collaboration, delivering actionable insights, and streamlining business processes for better decision-making.
Experience
Data and Reporting Specialist at CASK Construction (2025-03 – Present)
- Developed automated dashboards reducing manual reporting time by 30–50%
- Built data pipelines using Power Query to integrate multiple data sources
- Automated recurring reports using Excel VBA, improving efficiency
- Improved reporting accuracy through data validation and transformation
- Collaborated with stakeholders to deliver data-driven insights
Business Intelligence Analyst at Freedom Property Investors (2024-04 – 2025-03)
- Developed data collection and reporting systems
- Analyzed and visualized datasets to identify business insights
- Improved data reliability through validation processes
- Enhanced reporting systems to support business operations
Quality Specialist / Data Reporting Analyst at Qualfon Philippines Inc (2020-10 – 2024-04)
- Built dashboards using Power BI and Excel for KPI monitoring
- Performed ETL processes to support reporting workflows
- Improved reporting clarity and operational efficiency
- Supported business decisions through data analysis
Education
Bachelor of Electrical Engineering in Electrical Engineering – Cebu Technological University (2020-06 – 2022-10)
