You will get Data Cleaning & Data Preparation (up to 50k rows)
Rising Talent
Rising Talent
Project details
I’m a bilingual Data Analyst with over 1,700 hours of experience on UpWork, specializing in cleaning, preparing, and validating datasets for accurate and reliable analysis. With expertise in Python, Excel, and SQL, I remove duplicates, correct formatting issues, fix missing values, and deliver clean, organized datasets ready for dashboards, reporting, and decision-making. My workflow is fast, transparent, and detail-oriented, ensuring that you receive a dataset that is fully prepared for your business or analytical needs.
Data Tool
PythonWhat's included
| Service Tiers |
Starter
$40
|
Standard
$70
|
Advanced
$120
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 4 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.
Additional Revision
+$10
Extra 20k rows of data cleaning
(+ 1 Day)
+$25Frequently asked questions
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Nicolas O.
Dec 30, 2025
Data Entry and Analysis Specialist
About Maximiliano Lionel
Project Manager specialized in Data Analysis & Visualization
Mar del Plata, Argentina - 12:02 pm local time
Over the past few years I've managed and delivered automation and reporting projects for corporate clients like BBVA, Mercado Libre, and YPF, coordinating cross-functional teams, cleaning and modeling data with Python and SQL, and building dashboards in Tableau, Power BI, and Data Studio that update themselves. I also led a training program for over 600 senior professionals, so I'm just as comfortable managing people and timelines as I am managing pipelines.
Here's how I could help your project: clear planning from day one, steady communication throughout, and a final deliverable, whether it's a dashboard, an automated report, or a full data workflow, that's clean, reliable, and genuinely useful for your team.
If you need someone who can own a data project end to end and explain the technical parts in plain language, I'd love to connect.
Steps for completing your project
After purchasing the project, send requirements so Maximiliano Lionel can start the project.
Delivery time starts when Maximiliano Lionel receives requirements from you.
Maximiliano Lionel works on your project following the steps below.
Revisions may occur after the delivery date.
Dataset Inspection
I review your dataset to detect missing values, duplicates, formatting issues, incorrect data types, and structural problems before starting the cleaning process.
Automated & Manual Cleaning
I apply cleaning techniques using Python and Excel to fix errors, standardize formats, remove duplicates, correct data types, and handle missing values accurately.