During May 2025, Joxley focused on enhancing the reliability of test infrastructure for the facebook/fbthrift repository. He addressed persistent flakiness in continuous integration by stabilizing asynchronous mocks, specifically improving the use of AsyncMock for Cython-based Thrift client tests. Working primarily in Python, Joxley refined mocking strategies to prevent test breakages, which accelerated feedback cycles and reduced risk during release validation. His efforts centered on hardening unit tests and improving the robustness of automigrate test suites, leveraging skills in Cython, Thrift, and asynchronous programming. This work contributed to more stable CI pipelines and streamlined the validation of code changes.