You will get Data Cleaning & Transformation for CSV, Excel, JSON and More
Project details
My project delivers fast, reliable and professional data cleaning focused on accuracy and consistency. Unlike generic data entry services, I use advanced Python and data engineering techniques to detect errors, standardize formats, validate schemas and prepare clean, analysis-ready datasets. You get high-quality results, clear communication and a smooth delivery process.
Data Tool
PythonWhat's included
| Service Tiers |
Starter
$50
|
Standard
$120
|
Advanced
$250
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages Mined/Scraped | 0 | 0 | 0 |
Number of Sources Mined/Scraped | 0 | 0 | 0 |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$40 - $60
Additional Revision
+$20
Data Validation Report (PDF)
+$20
Python Automation Script
(+ 1 Day)
+$80
Format Conversion (CSV ↔ Excel ↔ JSON ↔ Parquet)
(+ 1 Day)
+$20Frequently asked questions
About Adrian
Senior Data Engineer | Python, SQL, ETL Pipelines, Data Cleaning, Auto
Lerma de Villada, Mexico - 3:13 am local time
I help businesses fix, clean and organize their data so they can make fast and accurate decisions.
I can help you with:
* Data cleaning & transformation (CSV, Excel, JSON, Parquet, APIs, SQL DBs).
* Building or fixing ETL/ELT pipelines.
* Python automation (Pandas, Dask, PySpark).
* SQL optimization & complex queries.
* Data validation, quality checks & schema normalization.
* Cloud data workflows (AWS, S3, Lambda, ECS)
Why clients work with me:
* 7+ years solving real data problems.
* Fast delivery, clear communication.
* Clean, reproducible and well-documented code.
* I deliver exactly what you need—no overengineering.
If you want your dataset clean, structured and ready for analysis, I can help.
Send me a message and I'll give you a quick plan and timeline.
Steps for completing your project
After purchasing the project, send requirements so Adrian can start the project.
Delivery time starts when Adrian receives requirements from you.
Adrian works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Received
You send me your dataset, instructions, and desired output format.
Initial Data Assessment
I scan your file to identify errors, inconsistencies, missing values, and formatting issues.