Worked on stabilizing and securing CI/CD pipelines across six Shopify repositories, including dawn, hydrogen, theme-tools, function-runner, polaris, and flash-list. Focused on standardizing GitHub Actions workflows by pinning actions to exact SHAs and introducing weekly automated dependency updates with Dependabot, all implemented using YAML. This approach reduced build variability and mitigated risks from upstream changes, ensuring reproducible and reliable releases. Addressed a specific build environment issue in flash-list by upgrading the ruby/setup-ruby action to the latest version. The work emphasized maintainability, incident response readiness, and consistent deployment processes, leveraging skills in CI/CD automation and GitHub Actions configuration.