During September 2025, contributed to the FirelyTeam/firely-net-sdk repository by developing a configurable JSON serialization feature in C#. This work introduced the TrimWhiteSpacesInJson setting, enabling users to control whitespace trimming in string values during serialization. The implementation involved updating the existing serialization logic to respect the new configuration while ensuring backward compatibility for existing integrations. Unit testing was employed to validate the feature’s behavior across various whitespace scenarios, supporting robust and predictable data handling. By focusing on configuration, JSON processing, and serialization, this contribution enhanced the SDK’s flexibility for diverse environments without introducing any new bugs during the period.