Open Source Database Architectures for High-Volume Financial Analytics

Explore how open source distributed databases power modern financial analytics platforms in this 16-minute conference talk from OSA Con 2025. Discover strategic approaches to handling millions of transactions while delivering real-time insights to traders, risk managers, and compliance teams using technologies like Apache Cassandra, PostgreSQL with Citus, and ClickHouse®. Learn how leading financial institutions process 65,000+ transactions per second during peak trading periods while maintaining sub-millisecond query performance for real-time risk assessment and fraud detection. Examine horizontal scaling strategies for multi-terabyte financial datasets, cross-region replication implementation for regulatory compliance, and techniques for balancing consistency requirements between transactional accuracy and analytical responsiveness. Gain practical insights through real-world case studies demonstrating how open source database architectures enable sophisticated financial analytics—from high-frequency trading algorithms to regulatory reporting pipelines—while reducing infrastructure costs and avoiding vendor lock-in. Master the fundamentals of architecting scalable, fault-tolerant analytics infrastructure using proven open source technologies that support today's most demanding financial applications, whether you're building trading platforms, risk management systems, or compliance dashboards.