Worked on the opensearch-project/data-prepper repository, focusing on improving the Parse JSON Processor’s handling of source field deletion to enhance data integrity in JSON parsing pipelines. Addressed a bug where deleting the source field after writing to the root caused parsed values to be lost, and revised the logic to delete the source field beforehand. This change ensures that parsed data is preserved when the destination is set to root. Added a regression test to verify the correct behavior of the deleteSource flag, utilizing Java and unit testing skills to maintain reliability and prevent future data loss in production environments.