Worked on the nodejs/docker-node repository to improve build hygiene by implementing a cleanup process after smoke tests. Addressed a persistent issue where temporary files in the /tmp directory could interfere with subsequent Dockerfile builds, leading to unreliable CI runs. Introduced a post-test cleanup step using Dockerfile commands to remove residual artifacts, ensuring each build started from a clean environment. This change enhanced the reliability and maintainability of the CI pipeline by reducing flaky builds and simplifying debugging. Leveraged skills in containerization and DevOps, with a focus on Dockerfile best practices, to deliver a targeted bug fix that improved overall build consistency.