Madhu Thangaraj

Analysing business datasets to extract actionable insights and building interactive dashboards using Power BI to support data-driven decision-making.

Data Analyst Intern at Berribot (2026-04 – Present)

Analysing business datasets to extract actionable insights and building interactive dashboards using Power BI to support data-driven decision-making.

• Cleaned and transformed raw datasets using Pandas and NumPy, improving data quality by 35% and enabling faster downstream analysis.
• Tech stack: Python, SQL, Pandas, NumPy, Matplotlib, Power BI.

App Development Intern at CODEAPLA (2025-06 – 2025-07)

• Built a Flashcard Quiz App in Python with randomised question sets, difficulty levels, and score tracking; reduced self-study prep time by ~40% among 50+ beta users.
• Tech stack: Python.

Full Stack Development Intern at CodTech (2025-03 – 2025-04)

• Built a real-time group chat application using React, Node.js, and Socket.IO with room-based messaging, JWT authentication, and MongoDB persistence; supported 10+ concurrent users with sub-100ms latency.
• Created a collaborative document editor with React and Node.js featuring real-time multi-user editing and MongoDB-backed version history, reducing merge conflicts by 80% vs. manual file sharing.
• Tech stack: React.js, Node.js, Socket.IO. Database: MongoDB.

B.Tech in Information Technology – United Institute of Technology, Coimbatore (2022 – 2026)