I build
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A real-time quiz platform built on STOMP over WebSockets, supporting multiple concurrent sessions with live scoring and timer management. An adaptive engine tracks per-user mastery and adjusts difficulty and concept progression using the Gemini API, backed by a RAG pipeline that turns uploaded documents into grounded questions.

• Vector similarity search on question embeddings cut 15–20% duplicate questions and LLM token usage
• Cached reusable concept hierarchies to reduce repeated LLM calls by 20–30%
• Secured REST and WebSocket sessions end-to-end with JWT authentication

Five independently deployable microservices — Accounts, Transactions, Security, Notifications, and API Gateway — each owning its own database. Event-driven communication over Apache Kafka decouples services, and the Saga pattern with compensating transactions keeps distributed banking operations eventually consistent.

• Stateless JWT authentication with OTP verification via Twilio
• Saga pattern with compensating transactions across distributed operations
• Dynamic service discovery and routing via Eureka and Spring Cloud Gateway

A multi-stage pipeline for detecting traffic violations in real time, built on an enhanced YOLOv8 architecture. Developed with a two-person team under the supervision of Prof. Jigisha N. Patel, moving through multiple rounds of architectural review — including a shift to a dual-model pipeline and swapping OCR engines for better accuracy.

• Iterated the detection pipeline through supervisor-directed architectural reviews
• Moved OCR from PaddleOCR to EasyOCR for improved plate-reading accuracy
• Simplified logging from a database-backed dashboard to lightweight CSV output