Worked on the nextflow-io/nextflow repository to enhance data integrity in sequencing pipelines by addressing file metadata preservation during the publish workflow. Focused on file system operations using Groovy, the developer delivered a targeted bug fix that ensures published files retain their original creation timestamps. This technical approach resolved issues where downstream tools, such as those processing index files like crai and tbi, depended on accurate file ordering for reproducibility. By improving the reliability of the publish and copy process, the work reduced misordering errors and contributed to more consistent end-to-end pipeline execution, emphasizing careful attention to software development best practices.