Subrahmanyaman worked on the google/android-cuttlefish repository, delivering an integration that enables the jcardsim hardware simulator for Strongbox testing. By introducing an enable_jcard_simulator flag, Subrahmanyaman configured APEX files and ensured the flag’s value was passed through to the secure_env binary, allowing seamless communication with the simulator. This C++-based solution leverages configuration management and embedded systems expertise to establish an end-to-end testing pathway, reducing reliance on physical hardware. The work enables automated, faster test cycles for Strongbox by validating interactions with the jcardsim emulator. The contribution demonstrates depth in system programming and thoughtful integration within a complex testing environment.