Sarcouncil Journal of Engineering and Computer Sciences

Abstract: This comprehensive technical article explores essential design patterns for building scalable microservices in cloud-native data platforms. It examines architectural foundations that enable organizations to transition from monolithic systems to distributed architectures, including domain-driven bounded contexts, event-driven architectures, and API gateway patterns. The article explores critical fault tolerance mechanisms, including circuit breakers, bulkheads, and retry patterns with exponential backoff, that ensure system resilience despite inevitable component failures. It further explores observability frameworks that combine distributed tracing, structured logging, and health check APIs, providing crucial visibility into complex distributed systems. Through a detailed financial services case study, the article demonstrates how these patterns deliver tangible business benefits, including improved system availability, faster incident resolution, enhanced processing capabilities, and optimized infrastructure utilization. Drawing on authoritative sources and practical implementation examples, the article provides a holistic framework for designing, implementing, and operating resilient cloud-native data platforms that meet the demands of modern data-intensive applications.