Pinned Loading

1. Flash-Sale-Concurrency-Engine Flash-Sale-Concurrency-Engine Public

   high-concurrency flash-sale redis-lua spring-boot java-21 domain-driven-design transactional-outbox apache-kafka jmeter benchmarks concurrency-control system-design idempotency mysql virtual-thread…

   HTML

2. inventory-flashsale-system inventory-flashsale-system Public

   High-performance modular monolith for omnichannel inventory and flash sale concurrency management using Redis, Kafka, and JPA

   Java

3. chat-hospital-system chat-hospital-system Public

   Production-grade AI Hospital Assistant with Permission-Aware RAG, Citation Hallucination Detection, and Full Observability (FastAPI, TanStack, PostgreSQL, pgvector).

   Python

4. hospital-management-system hospital-management-system Public

   Production-grade Hospital ERP with DDD Modular Monolith, PHI compliance, AES-GCM encryption, and full CI/CD observability stack.

   JavaScript

5. ledger-credit-system ledger-credit-system Public

   TypeScript-based finance backend demonstrating double-entry ledger, idempotent orchestration, and durable financial workflows with NestJS, Prisma, and PostgreSQL.

   TypeScript

6. mini-digital-banking-platform mini-digital-banking-platform Public

   Modular monolith digital banking platform with idempotent transfers, immutable transaction ledger, and real-stack E2E validation (Spring Boot, Next.js, PostgreSQL).

   JavaScript