I like Jenkins because it automates the CI/CD process, reduces manual deployment work, and helps make builds and deployments more consistent. It also integrates well with GitHub and supports flexible pipelines for different environments.

It's super easy to use. It is well organized and it has too many features and it is easy to learn and understand.

Jenkins has been a reliable CI/CD tool since I first learned it while studying programming and microservices seven years ago, and returning to it across several projects since has reinforced how flexible and extensible it is. Being open-source with a massive plugin ecosystem has made it adaptable to nearly any tech stack or workflow, whether that's simple build automation or more complex multi-stage deployment pipelines. Pipeline-as-code through Jenkinsfiles has made version-controlling the entire CI/CD process straightforward, keeping build logic alongside the actual codebase rather than living in a separate system. The community support and documentation, built up over years of widespread adoption, means troubleshooting rarely takes long since most issues have already been discussed somewhere.