Worked on integrating upstream Prometheus changes into the grafana/mimir-prometheus repository, focusing on maintainability and streamlined feature adoption. Merged updates from Prometheus, including modifications to CI workflows, issue templates, and configuration files, to ensure consistency and reduce repository drift. Leveraged skills in CI/CD, DevOps, and GitHub Actions to enhance automation reliability and improve contributor onboarding processes. Utilized Go, YAML, and Dockerfile to implement and validate configuration updates, enabling faster integration of new Prometheus features. The work emphasized alignment with upstream development, supporting ongoing maintainability and facilitating a smoother path for future enhancements within the project’s infrastructure.