Synchronizing Redmine and JIRA

Does anyone know of an add-on that allows for seamless issue synchronization between Redmine and JIRA? For example, when an issue is logged in Redmine, a matching ticket is automatically created in JIRA, and vice versa. Also, any updates in the status of an issue in one system should immediately reflect in the other. Apologies for any language mistakes.

I have implemented a custom solution to handle synchronization between Redmine and JIRA using their REST APIs. The process involved creating middleware that monitors changes in either system and triggers updates accordingly. Although a ready-made add-on is not available, it is feasible to construct one if you are comfortable with some custom scripting. The key is ensuring robust error handling to prevent data inconsistencies, particularly when network issues occur. From my experience, initial testing is crucial to fine-tune the integration so that it meets the real-time synchronization requirements.