Cloud-Native Competitive Programming Platform

• Designed and developed a scalable web platform using Next.js and PostgreSQL, supporting secure multi-user workflows with role-based access control (RBAC).
• Enhanced system performance by implementing Redis caching, query optimization, and indexing to reduce latency and database load.
• Implemented asynchronous judge workers using RabbitMQ for scalable code evaluation.
• Added SSE based real-time submission updates.
• Built and deployed containerized microservices using Docker and Kubernetes, leveraging HPA and KEDA for auto-scaling based on workload metrics.
• Enforced API security practices including rate limiting and input validation to ensure system stability under high traffic.