Contributed backend engineering work to the TencentBlueKing/blueking-dbm repository, focusing on security visibility and task reliability. Developed a Version Log Notification System using Django and Python, enabling tracking of user access to version logs and enhancing transparency for version management. Addressed a bug in checksum task scheduling validation, ensuring that manual executions cannot be scheduled in the past without explicit confirmation, thereby reducing the risk of mis-timed operations. Demonstrated skills in API development and backend services, collaborating across functions to deliver features that improve user trust and operational safety. The work emphasized robust scheduling and secure version log access.