I will clean, deduplicate, and standardize your CRM or contact database

Hasan Santosa

Japan

I speak Indonesian, English, Japanese

Data Analyst and Spreadsheet Specialist

"I am a detail-oriented data analyst freelancer who helps businesses make sense of their data. I specialize in data cleaning, data entry, spreadsheet analysis, and creating simple reports and visualiz...
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About this Gig

Messy CRM data costs you deals. Duplicate leads, broken emails, inconsistent phone formats I fix all of it with a reproducible, automated Python pipeline.

What I will do:

Remove duplicate contacts (by email, phone, or both)

Normalize emails to lowercase and validate format

Standardize phone numbers to E.164 international format (+62XXXXXXXXX)

Clean company names (PT., CV., inconsistent casing)

Handle missing and invalid values with clear flagging

Sort and export clean CSV ready to import into your CRM

Deliver a cleaning report showing what changed and why

You will receive: clean CSV file + Python script + audit report. The script is yours to keep and re-run anytime your data grows.

Works with HubSpot, Salesforce, Notion, Airtable exports, or any raw CSV. Typical turnaround: 24 hours.

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clean, deduplicate, and standardize your CRM or contact database
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clean, deduplicate, and standardize your CRM or contact database
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clean, deduplicate, and standardize your CRM or contact databaseclean, deduplicate, and standardize your CRM or contact databaseclean, deduplicate, and standardize your CRM or contact database

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