•Architected a fault-tolerant event streaming pipeline capable of buffering high - throughput gaming telemetry with zero data loss by deploying a Dockerized Apache Kafka (KRaft) message broker. •Optimized continuous time-series data ingestion and retrieval for live match history by designing a masterless Apache Cassandra NoSQL database with customized partition and clustering keys. •Served live gameplay analytics (such as top card meta and player snap rates) with sub-second latency by developing an asynchronous REST API using FastAPI and Pandas for in-memory data aggregation.