Joa worked on backend development and system design for the ingadhoc/product and ingadhoc/miscellaneous repositories, focusing on robust access control and asynchronous processing in Odoo. In ingadhoc/product, Joa refactored IrModelAccess error handling, introducing centralized logic for clearer, more predictable access error management using Python and XML. For ingadhoc/miscellaneous, Joa developed the base_bg module, enabling non-blocking background job processing with automatic queuing, retry logic, and real-time monitoring, and addressed privilege escalation issues in cron jobs. The work demonstrated depth in asynchronous programming, error handling, and access control, resulting in more reliable, maintainable, and secure Odoo backend operations.