Real-time fraud detection system protecting millions of orders from financial risk at scale

Order Fraud Detection is a large-scale data pipeline designed to identify fraudulent transactions across high-volume order streams in real time. The system processes millions of events per day using Apache Spark and Celery workers, applying rule-based scoring and behavioral pattern analysis to flag suspicious orders before fulfillment. OpenTelemetry provides full observability across the pipeline. Built for a warehouse and logistics operation handling nationwide distribution, it significantly reduced financial exposure from fraud while maintaining full throughput at production scale.