I will clean, transform, and analyze complex data using python and sql
Japanese LQA Linguistic Specialist Data Cleaning Workflow Automation
About this Gig
Do you have large, complex, or messy datasets that Excel cannot handle easily? I offer high-performance data cleaning, transformation, and analysis using Python (Pandas), SQL, and Power Query.
What I can do for you:
- Large Dataset Processing: Efficiently handle CSV, JSON, Excel, or SQL databases
- Data Cleaning & Wrangling: Handle missing values (NaN), fix data types, deduplicate, and normalize
- Data Transformation: Merge, join, pivot, reshape, and filter datasets seamlessly
- Custom SQL Queries: Write optimized SQL queries for database extraction and manipulation
- Automation Scripts: Provide clean, well-commented Python scripts or Power Query workflows for future use
- Bilingual Support: Expert processing for Japanese, English, or mixed-language datasets
Tools I use:
- Python (Pandas, NumPy)
- SQL (MySQL, PostgreSQL, SQLite)
- Power Query / Excel / Google Sheets
Why choose me?
- Fast turnaround and high accuracy
- Clean and reusable code/scripts
- 100% confidentiality guaranteed
Please message me with a sample or description of your data before placing an order so I can recommend the best approach for your project!
My Portfolio
FAQ
Will I receive the Python script or SQL code?
Yes! Upon request, I will deliver both the cleaned dataset (CSV/Excel) and the reusable Python script or SQL query file (.py / .sql).
What data formats do you work with?
I accept CSV, XLSX, JSON, TXT, and SQL database dumps. If your data is in a different format, please contact me first.
How do you handle Japanese or multilingual datasets?
As a native Japanese and fluent English speaker, I handle character encoding (UTF-8, Shift-JIS) and multilingual text processing seamlessly.
Can you process datasets larger than 100,000 rows?
Yes, absolutely. For very large datasets or complex database pipelines, please send me a message with details for a custom offer.

