Jenkins is an open-source automation server that simplifies software development by automating build, test, and deployment tasks. It reduces manual effort by operating using highly customizable pipelines that can be configured using Groovy-based scripts. Developers can commit code changes to Git repositories, and Jenkins then detects these updates to initiate the build process automatically. The build process in Jenkins includes compiling source code and running tests to provide feedback. Jenkins also supports continuous delivery by managing dependencies and deploying artifacts like JAR files or container images. Its extensive plugin ecosystem allows teams to customize workflows for version control, testing, deployment, and reporting. A Jenkins environment consists of the master server (controller) and its connected agents, which run the defined jobs. Jenkins relies heavily on a plugin-based architecture, enabling integration with countless tools and systems in the DevOps ecosystem. The platform provides flexible automation, extensive plugin support, a distributed build system, version control integration, customizable build triggers, security and access control, cloud and container support, built-in monitoring and reporting, and proactive issue detection. Jenkins can help automate the entire software build, test, and deployment process, which improves development efficiency and reduces the risk of human error. It offers a free and open-source alternative to proprietary CI/CD tools, accelerates development pipelines, proactively detects issues, enforces quality gates, allows for horizontal scaling, supports customizable workflows, and provides centralized monitoring and reporting.