Designed and developed a dynamic SMS dispatching platform supporting multiple providers with rule-based routing, automatic fallback, and real-time delivery tracking. Built using Java, Spring Boot, PostgreSQL, RabbitMQ, and SMPP/HTTP integrations, the system supports high-volume messaging with asynchronous processing, idempotent handling, and database-driven configuration, allowing new providers to be added without code changes while ensuring reliability and scalability.

NexusPay is Dutch-Bangla Bank's (DBBL) all-in-one digital wallet and banking app, offering a cardless experience for managing multiple bank cards (Visa, Mastercard, DBBL), mobile banking (Rocket), and agent banking, enabling free fund transfers, bill payments, online shopping, QR/NFC payments, temporary virtual card generation for e-commerce, and ATM withdrawals, making it a comprehensive financial tool in Bangladesh.