Many modern-day applications need to meet scalability, availability, security, reliability, and resiliency demands at an enterprise or internet scale. This article by Tanmay Deshpande explores Circuit Breaker, CQRS, Event Sourcing, Sidecar, Backend-for-Frontend, and Strangler design patterns for building robust software systems. These patterns aim to facilitate loose-coupling, ease maintenance and upgrades, optimize performance and resource utilization, and reduce downtime and failure. By adopting these patterns, software professionals can improve the quality and agility of their applications and meet the expectations of their customers and stakeholders.