Worked on the RafaySystems/terraform-provider-rafay repository to enhance deployment reliability in Jenkins-based CI/CD pipelines running on AWS EC2 Fleet. Focused on resolving a bug where builds were misrouted by implementing targeted build node selection, ensuring that Jenkins jobs executed on designated EC2 fleet nodes. This involved adding a fleet-node label to builds, which improved routing accuracy and traceability within the CI/CD process. Utilized Groovy for Jenkins pipeline scripting and applied CI/CD best practices alongside Terraform provider development. The changes led to more predictable resource utilization, reduced troubleshooting time, and a more robust integration between Jenkins and EC2 Fleet environments.