Developed a transactional and real-time bidding module for a distributed auction platform. The system ensures data consistency, enforces strict bidding business rules, and updates all active clients instantaneously. Key logic and features: Microservices integration: Implemented cross-service communication (auctionServiceClient) to securely fetch external auction states and trigger remote time-extension events. Anti-Snipe algorithm: Engineered an automated validation mechanism that detects last-minute bids and dynamically extends auction deadlines to ensure fair competition. Real-Time broadcasting: Integrated WebSocket (STOMP) protocols to push instant, live bid updates to all concurrent users viewing the auction room. Data consistency: Utilized @Transactional boundaries to maintain strict database integrity and prevent race conditions during high-frequency bidding scenarios. Tech Stack: Java, Spring Boot, WebSockets (STOMP), Microservices Architecture.