Developed and integrated the LDAP DN User Authentication feature for the jumpserver/jumpserver repository, enabling users to authenticate using their LDAP Distinguished Name. Focused on backend development with Python, the work enhanced the authentication subsystem by improving error handling for invalid credentials and clarifying the login flow for both users and administrators. Addressed a specific LDAP login exception to stabilize the sign-in process, which increased the reliability of LDAP-based authentication and reduced support overhead. Demonstrated skills in LDAP integration and robust error handling, contributing to a more enterprise-ready authentication experience and streamlining onboarding for organizations using LDAP directories.