Zakaria Alsahfi – Freelance Data Analyst & Data Visualization Portfolio
Freelance data analyst Zakaria Alsahfi showcases a powerful data visualization portfolio with Python, Excel, and real-world dashboards solving analytical challenges.
Latest Project
Building a Comprehensive Data Validation and Reporting Tool with Python
In a world driven by data, maintaining data quality is essential for informed decision-making. Whether it’s analyzing student records, financial data, or operational metrics, inconsistencies in data can lead to incorrect insights. To address these challenges, I developed a Data Validation and Reporting Tool that automates quality checks, ensures compliance, and provides clear, actionable insights through detailed reports. Continue reading Building a Comprehensive Data Validation and Reporting Tool with Python
Student statistics in Saudi universities
Analysis of Saudi higher education enrollment, admissions, and graduation totals for 2013–2020. Totals aggregate annual records; the report’s regional map is inaccurate and should not be used for geographic conclusions. Continue reading Student statistics in Saudi universities
Human Resources Dashboard Overview
This interactive HR dashboard visualizes employee distribution, salary insights, talent assessments, and hiring activities. It empowers HR teams to track workforce metrics, optimize recruitment, and manage employee performance effectively. Dashboard layout inspired by DataTraining.io. Continue reading Human Resources Dashboard Overview