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Johnny Saputra
@joleo7
Data Analyst for SQL, Data Cleaning and Business Insights
Indonésie
Anglais
À propos de moi
I am a Data Analyst specializing in SQL, data cleaning, and transforming raw data into clear, reliable insights.
I have experience working with large datasets (500K+ rows), helping businesses:
- Clean and structure messy data
- Remove duplicates and inconsistencies
- Prepare data for reporting and dashboards
- Analyze sales and customer trends
I focus on accuracy, clarity, and delivering results that are ready to use for business decisions.
If you need clean, well-structured data and actionable insights, I’m here to help.
Compétences
Johnny Saputra
hors ligne •
Voir mes services
Nettoyage des données
I will clean, organize and analyze your data using excel and sql
Formules & Macros
I will clean messy excel or CSV data and fix date issues
Portfolio
Expérience professionnelle
Data Analyst
Freelancing Career • Indépendant
Jan 2025 - Present • 1 yr 5 mos
DATA PROJECTS Ecommerce Sales Dashboard — Tableau | SQL | Excel Processed 500K+ transactions, built KPI dashboard (sales $10.6M, 38 countries), analyzed seasonal trends and top-selling products. Loan Risk Analysis — SQL | Tableau Used SQL CTE, joins, and window functions to segment risk and identify key default indicators. Sales & Inventory Dashboard — Power BI Automated GMV, stock-out, and forecasting reports using Power Query & DAX.
