In modern software systems, reliability is no longer a downstream operational concern—it is a foundational software engineering requirement. As organizations increasingly rely on distributed, cloud-native platforms to deliver mission-critical services, the cost of unreliable software has shifted from inconvenience to existential risk. Outages today can halt financial transactions, disrupt supply chains, and erode user trust […] The post Reliability as a First-Class Software Engineering Requirement appeared first on IEEE Computer Society.