Designed and implemented a distributed CI/CD platform to automate the full lifecycle of a mobile application, focusing on reproducibility and reliability. Built a Jenkins-based distributed architecture with automated agent provisioning on Hyper-V using Ansible and Cloud-init. Implemented hybrid agents (static VMs and ephemeral Docker containers), secured Jenkins with Nginx and SSL/TLS, and standardized builds using versioned Docker images. Integrated Trivy, SonarQube, Prometheus, and Grafana to improve security, quality, and observability.