DevOps, SecOps, and Infrastructure as Code (IaC) are foundational to building, securing, and scaling cloud-native environments. DevOps unifies software development and IT operations through practices and tools that automate and standardize software delivery. It promotes collaboration, continuous integration, and continuous deployment (CI/CD), enabling teams to deliver high-quality applications faster and more reliably. DevOps best practices include integrating automation at every stage, leveraging CI/CD pipelines, and using microservices and container orchestration for scalable solutions [1].