You will get Professional Data Cleaning & Organization
Project details
Data cleaning is the most critical step in analysis. If your data is dirty, your decisions will be wrong. I am here to fix that.
As a Google Certified Data Analyst (in progress), I specialize in the 'Process' phase of data analysis. I will take your raw, messy datasets and transform them into clean, consistent, and reliable formats using SQL and Spreadsheets.
MY SERVICES:
Data Cleaning
Data Integrity
Standardization
Documentation
I provide a detailed Changelog of every fix applied to your data.
As a Google Certified Data Analyst (in progress), I specialize in the 'Process' phase of data analysis. I will take your raw, messy datasets and transform them into clean, consistent, and reliable formats using SQL and Spreadsheets.
MY SERVICES:
Data Cleaning
Data Integrity
Standardization
Documentation
I provide a detailed Changelog of every fix applied to your data.
Data Entry Type
Copy Paste, Data Cleansing, Error DetectionData Entry Tool
Google Docs, Google Sheets, Microsoft Excel, Microsoft OfficeWhat's included
| Service Tiers |
Starter
$10
|
Standard
$30
|
Advanced
$60
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | |
Formatting & Clean Up | |||
Graph & Table Creation | - |
Frequently asked questions
About RAFI ULLAH
Data Analyst | Excel, SQL, BigQuery & Data Cleaning (2 Years Exp)
Mingora, Pakistan - 10:20 am local time
My goal is to ensure your data is ready for decision-making. I bridge the gap between messy raw data and clean, structured insights.
With 2 years of experience in strict inventory control and data management within the pharmaceutical industry, I understand that data integrity is not just a goal—it is a requirement. I bring this same attention to detail to every data analysis project.
My Core Technical Competencies:
• Advanced SQL & Querying:
◦ Writing complex Query Functions using CASE Statements, Logical Operators (AND/OR/NOT), and LIKE Statements to filter exact requirements.
◦ Implementing Multi-Level Sorting and Comparing Strategies to identify trends and outliers.
◦ Translating Business Logic into technical queries to ensure the data answers the right questions.
• Data Cleaning & Verification:
◦ Identifying and fixing Truncated Data, Source Errors, and formatting inconsistencies.
◦ Performing rigorous Verifications to ensure data accuracy before analysis.
◦ Cleaning messy strings using spreadsheet functions (LEN, TRIM, LEFT/RIGHT) and removing duplicates.
• Documentation & Workflow:
◦ Write Changelogs: I maintain a detailed history of all data changes, so you always have a paper trail.
◦ Big Picture View: I focus on how the data fits your overall business goals while managing the minute details.
◦ Security: Organizing data with protected ranges to prevent unauthorized errors.
Why Work with Me?
• Reliability: My background in regulatory reporting (DRAP) trained me to handle sensitive data with zero error tolerance.
• Efficiency: I automate repetitive tasks using Advanced Formulas (VLOOKUP, ImportHTML) to save you time.
• Communication: I provide clear updates and ensure I fully understand your objectives before starting.
I am ready to turn your dirty data into a clean asset. Let’s connect!
Steps for completing your project
After purchasing the project, send requirements so RAFI ULLAH can start the project.
Delivery time starts when RAFI ULLAH receives requirements from you.
RAFI ULLAH works on your project following the steps below.
Revisions may occur after the delivery date.
Understanding & Access
You share your dataset (CSV, Excel, or SQL dump) and explain your business problem. I define what 'clean data' looks like for your specific needs.
Deep Cleaning & Processing
I will use tools like SQL or Spreadsheets to clean the data. This involves identifying errors, removing duplicates, typecasting data correctly, and validating the results.