DATA ANALYST

Devraj Parihar.

Turning raw data into decisions.

I transform data into meaningful insights using Python, SQL, Excel, Power BI and data visualization. My focus is on solving business problems through clean analysis and practical dashboards.

PYTHON SQL EXCEL POWER BI PANDAS
Devraj Parihar
DATA ANALYST
01

Data with purpose.

I am a Data Analyst who enjoys turning messy datasets into clear and useful insights.

I work across data cleaning, exploratory analysis, visualization and dashboard development. I enjoy understanding what the data is saying and then presenting it in a way that makes sense to people beyond the technical side.

My projects focus on practical problems such as customer behavior, data quality and mathematical modelling.

01
Analyze

Find patterns and meaningful insights.

02
Visualize

Turn analysis into understandable dashboards.

03
Decide

Connect insights with practical decisions.

02

My toolkit.

Python

Data analysis, automation and exploratory data work.

Pandas NumPy Plotly

SQL

Querying, filtering, aggregations, joins and analytical logic.

Queries Joins Analysis

Visualization

Building dashboards and visual stories from complex datasets.

Power BI Plotly Charts

Excel

Data preparation, analysis and business-focused reporting.

Functions Pivot Tables Analysis
03

Problems I've explored.

01
DATA ANALYSIS

Customer Analysis

An analytical project focused on customer behavior, sales performance, segmentation and regional trends.

Python Pandas Plotly
02
DATA QUALITY

Data Quality Control

A practical application designed to identify missing values, duplicates, inconsistencies and other common data quality problems.

Python Pandas Streamlit
03
MATHEMATICAL MODEL

SIR Model Simulation

A simulation exploring how susceptible, infected and recovered populations change over time.

Python Mathematics Plotly
04

Try the work yourself.

01 LIVE

Customer Analysis Dashboard

Interactive dashboard for exploring customer behavior, sales performance, segmentation and regional trends.

Python Streamlit Pandas Plotly
02 LIVE

Data Quality Control Center

Interactive application for identifying missing values, duplicates, inconsistencies and other data quality issues.

Python Streamlit Pandas NumPy
03 PROJECT

SIR Model Simulation

Mathematical simulation showing how susceptible, infected and recovered populations change over time.

Python Mathematics Plotly
05

Credentials & Certifications.

SEP 2026
SQL CERTIFICATION

SQL (Intermediate)

HackerRank

Verified certification demonstrating intermediate SQL skills including complex queries, joins, subqueries, aggregations, and database operations.

SEP 2026
DATA SCIENCE & ANALYTICS

Data Science & Analytics

HP LIFE

Certificate of completion covering data science and analytics practices, methodologies, tools, and data-driven approaches for businesses.

06

Data Detective.

CAN YOU SPOT THE PROBLEM?

Find what's wrong with the dataset.

Every dataset has a story. Sometimes it also has a few problems hiding inside it.

CASE 01 / 05
SCORE 0
INVESTIGATION

Something is wrong with this dataset. Find the suspicious value.

Select the value you think is wrong.
0 / 5

Data Detective

You found the problems hidden in the data. That's the first step toward reliable analysis.

Let's talk about
data.

Looking for a Data Analyst, internship opportunity, or someone who enjoys solving problems with data? I'd be happy to connect.