Raju developed a ROM-call interpretation for CallData and ReturnData within the UltraCircuitBuilder module of the AztecProtocol/aztec-packages repository. This work focused on improving block-constraint handling and integrating ROM-like data types into the builder’s workflow. Using C++ and leveraging blockchain development expertise, Raju replaced exception-based error handling with a structured processing approach, which enhanced robustness and maintainability. The implementation also clarified environment limitations in the Ultra workflow, reducing ambiguity for downstream integration. Although the project scope was limited to a single feature over one month, the solution demonstrated depth in error handling and thoughtful integration of new data processing patterns.