Python CSV Data Cleaning & Validation Specialist

I am a Python developer specializing in CSV data cleaning and validation.

I help businesses fix messy CSV and Excel files by applying clear, rule-based validation using Python automation. My work focuses on accuracy, transparency, and fast turnaround — not generic data entry.

What I do:
• Validate CSV structure and column consistency
• Apply required field and format checks
• Normalize date formats to YYYY-MM-DD
• Validate emails and numeric values
• Detect and flag duplicate records
• Separate valid and invalid data into structured output files
• Preserve original data for audit purposes
• Generate summary validation reports with error statistics

What you get:
• Clean, ready-to-use CSV files
• Invalid records with clear error reasons
• A transparent validation report
• Reliable communication and on-time delivery

If you have CSV files that fail to upload, contain errors, or need structured validation, I can help you fix them quickly and correctly.

Work Terms

Working Time :Monday to Friday, 10:00 AM – 8:00 PM (GMT+5).
Messages are usually answered within 6–12 hours.
Payments must be made through Guru.com for client and freelancer protection.
Guru Messaging for project updates and clarifications
• 1–2 revisions included per project
• Additional revisions may incur extra charges depending on scope
• Revisions are for corrections within the agreed project rules
• Standard CSV file (up to 5,000 rows): 1–2 business days
• Larger files or complex rules: timeline to be agreed before starting