
Mamun R
Data Analyst and Machine Learning Expert
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Data Analyst
Datym • Freelance
Jul 2025 - Apr 2026 • 9 mos
Analyzed large datasets to uncover trends, patterns, and actionable insights for business decision-making. Worked with clients to define KPIs, clean and transform raw data, and deliver clear visual reports and dashboards. Responsibilities included data wrangling with Pandas and NumPy, building interactive dashboards using Matplotlib and Seaborn, writing complex SQL queries for data extraction, and presenting findings to non-technical stakeholders. Consistently reduced reporting time by automating manual Excel processes with Python scripts. Skilled in identifying data quality issues and resolving them before analysis to ensure accurate outputs.