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Data Analytics Portfolio — TEJASHWINI S

ECE graduate transitioning into Data Analytics, with hands-on BFSI (housing finance) domain experience from an apprenticeship at LIC Housing Finance Ltd. Currently completing a structured DA training program (Spreadsheets → SQL → Power BI → Business Analytics → Python).

Each project below is deliberately rebuilt across multiple tools using the same dataset and business questions, to demonstrate range rather than one-off exercises. Every case study ends in a concrete number or recommendation, not just a chart.

Projects

# Project Business Question Tools Used Status
1 Cash Flow Intelligence Dashboard Where is money leaking across accounts, and what's the underlying financial health score? Spreadsheets → SQL → Power BI → Python In Progress
2 Retail / E-commerce Sales Analysis Which products/regions/segments actually drive revenue, and where's the untapped opportunity? Spreadsheets → SQL → Power BI → Python Planned
3 HR Attrition Analysis Which departments/roles have the highest attrition, and what's driving it? Spreadsheets → SQL → Power BI → Python Planned
4 Marketing Campaign Performance Analysis Which channels/campaigns deliver real ROI vs. which are losing money? Spreadsheets → SQL → Power BI → Python Planned
5 Loan Default / Credit Risk Analysis Which borrower segments carry the highest default risk? (BFSI differentiator project) Spreadsheets → SQL → Power BI → Python Planned

How this portfolio is organized

Each project folder follows the same structure, so a reviewer can navigate any of them the same way:

XX-project-name/
├── README.md          <- Problem statement, approach, findings, recommendation
├── data/
│   ├── raw/            <- Source data, left intentionally unclean (source of truth)
│   └── cleaned/        <- Cleaned/transformed data
├── spreadsheets/        <- Excel/Sheets workbooks
├── sql/                 <- Queries, schema, SQL-based analysis
├── powerbi/             <- .pbix files, dashboard screenshots
├── python/              <- Notebooks/scripts for deeper analysis
└── assets/              <- Charts, dashboard images used in the README

Skills demonstrated

Data cleaning · Spreadsheet modeling · SQL · Power BI · Python (pandas) · Business/financial analysis · BFSI domain context

Background

  • B.Tech Electronics & Communication Engineering, M.S. Ramaiah University of Applied Sciences (2024)
  • Apprentice, Sanction Department — LIC Housing Finance Ltd
  • Data Analytics training — Sharpener Tech

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