Final-year BCA student (Techno Main Salt Lake Kolkata, MAKAUT) graduating 2027 · Java/Backend Developer · AWS & Power BI certified
- 🔭 Currently building an offline-first UPI payment simulator and exploring mesh-relay payment settlement
- 💼 5-month AWS Cloud internship as Team Lead — DynamoDB, S3, Lambda, Python
- 🌱 Sharpening backend Java (Servlets, JSP, JDBC, MySQL, Tomcat) and data analytics (SQL, Power BI)
- 📫 Reach me at: kundusouvik54@gmail.com · LinkedIn
Offline UPI Payment Simulator Offline-first UPI-style payment simulator — idempotent payment packets, retry-safe transactions, SQLite ledger, Java Swing desktop app, and a modern web frontend.