Available for hire

Turning Complex Data into Clear Decisions.

Hi, I'm Raj Kumar Sunar. I help businesses move from "guessing" to "knowing" using Python, SQL, and advanced visualization.

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3
Projects Completed
1+
Years Experience
3
Articles Written
Raj Kumar Sunar
Stack
Python & SQL

My Philosophy

Analyst vs. Data Decorator 🎨

Early in my career, I thought visual complexity meant success. I focused on fancy slicers and complex charts. But in the vast field of data, stakeholders didn't need complexity. They needed answers.

The new roadmap: Target the Problem → Ask the Hard Questions → Synthesize pieces of information → Prescribe the Solution.

"Data is just the plural of datum unless you give it meaning. By applying rigorous analysis akin to the social sciences, I visualize solutions, not just numbers."

My Data Toolbox

I believe in using the right tool for the job. Whether it's Python for heavy lifting, SQL for extraction, or Tableau for storytelling.

Focus Areas

  • Automated ETL Pipelines
  • Predictive Modeling
  • Interactive Business Dashboards

Python

Pandas, NumPy, Scikit-Learn

SQL

PostgreSQL, MySQL, Window Functions

Power BI

DAX, Power Query, Modeling

Tableau

LOD Expressions, Storyboarding

Statistics

Hypothesis Testing, A/B Testing

Git & CI/CD

Version Control, Deployment

Featured Results

Real-world projects solving real business problems. From ETL pipelines to predictive dashboards.

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Emiarates Customer Reviews Data Analysis
Python, Pandas, +4

Emiarates Customer Reviews Data Analysis

Emirated customer reviews data analysis

15 0
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🚀 Automating Loan Application Processing with Machine Learning 🤖💰
Pyhthon

🚀 Automating Loan Application Processing with Machine Learning 🤖💰

🚀 Automating Loan Application Processing with Machine Learning 🤖💰

99 1
See Case Study
Product Sales Analysis: Optimizing Sales Methods for New Stationery Line
django,JavaScript, HTML, +2

Product Sales Analysis: Optimizing Sales Methods for New Stationery Line

In response to changing consumer behavior, the company tested three different sales strategies to identify the most effective approach for this new product line: Email: Targeted emails at launch and 3 weeks later. Call: Direct phone calls from the sales team (avg. 30 mins/customer). Email + Call: An initial email followed by a shorter needs-assessment call (avg. 10 mins/customer).

99 2
See Case Study
Problem Solving

Recent Case Studies

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A Business Report on Tesla: Strategic Analysis & Recommendations
Case Study

A Business Report on Tesla: Strategic Analysis & Recommendations

Tesla’s primary challenge was identified as intense competition, especially from BYD, which made significant inroads into affordable EV market (deAcostaNoya, 2024). Ford and Rivian posed additional threats in electric pickup segment, while Volkswagen and Lucid Motors were making strides in premium EV spaces. The report also recognised that Tesla’s price premium and production delays, particularly with CyberTruck, further compounded its competitive challenges. 

38 2
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Latest Insights

Thoughts on Data, Python, and the Industry.

Nov 26, 2025

Rethinking the Traditional Hiring Mindset

Years of experience have their place — they bring insight and industry familiarity. But experience without innovation does not fuel growth. The future of HR lies in hiring individuals who bring new ideas, challenge outdated systems, and elevate organizational performance.

77 0
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Certifications & Credentials

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IBM Data Analyst

IBM • 2025

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Associate Data Analyst

DataCamp • 2025

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Let's Connect

Have a dataset that needs exploring? Or a business question that needs answering?

Email
rajkumarsoni280@gmail.com
Location
West Sussex, UK