The core principles of DevOps in software development emphasize collaboration, automation, and continuous integration. By breaking down silos between development and operations teams, DevOps fosters faster and more efficient software delivery. Continuous integration involves automatically testing code changes to identify defects early in the development process. Additionally, automation of deployment processes reduces human error and improves consistency. Emphasizing a culture of collaboration, DevOps encourages feedback and communication, ultimately leading to higher quality software and faster response times to market demands.