Worked on improving the reliability of continuous integration workflows for the ClementiGroup/mlcg repository by addressing a persistent issue with dependency installation in CircleCI. Focused on stabilizing the build process, the developer removed the --use-feature=in-tree-build flag from the pip install command, reverting to pip’s default behavior to reduce build failures and accelerate feedback cycles. This targeted fix, implemented using YAML for CI configuration and leveraging DevOps and CI/CD expertise, resulted in fewer flaky builds and faster pull request validation. The work demonstrated a methodical approach to troubleshooting and maintaining Python packaging standards, ultimately enhancing developer productivity and release predictability.