I will do expert sql, python, or excel data cleaning and analysis

India

I speak Bengali, English, Hindi
I'm Suvendu, a Senior Data Analyst with 7+ years of experience at eRevMax and Arrowai. I master the entire data lifecycle to drive key business strategies. I Offer: Data Wrangling: Advanced SQL, Pyt...
About this Gig

As a Senior Data Analyst with 7+ years of experience, I specialize in transforming raw, chaotic data into a clean, structured, and reliable foundation for critical business decisions.


Focus: I provide expert-level data wrangling, cleaning, and foundational statistical analysis using the most powerful tools in the industry. Stop guessing your next step based on messy spreadsheets. I deliver reliable, actionable insights and validated data integrity.


My Core Services Include:

  • Data Cleaning & Preprocessing: Handling missing values, de-duplication, outlier detection, and validation for 100% data reliability.
  • Expert SQL Optimization: Writing and optimizing complex queries for fast, efficient data extraction and manipulation.
  • Python (Pandas/NumPy) Analysis: Advanced statistical checks, trend identification, and descriptive reporting.
  • Excel Mastery: Large-scale manipulation and formula application to prepare data for visualization or reporting.


Let me take the pain out of data preparation so you can focus on strategy and achieving measurable growth. I turn your data into a clear asset.

Programming language:

Python

R

SQL

NoSQL

Technology:

Alteryx

Excel

Google Analytics

Google Data Studio

Analysis Type:

Quantitative Analysis

Statistical Analysis

Expertise:

Web analytics

Business Insights

AB test

Trends

Tools:

RStudio

Stata

NVivo

Google Colab

My Portfolio

Other Data Analytics Services I Offer