Worked on enhancing test reliability and internal tooling for the cashapp/misk repository, focusing on backend development using Java and Kotlin. Addressed a persistent issue with test state leakage by implementing a reset method for the FakeRedis test utility, ensuring that internal state is cleared between tests. Integrated the TestFixture interface to standardize test context setup and teardown, which improved test isolation and reduced flakiness across the suite. These changes contributed to more stable continuous integration workflows and safer code refactoring. The work emphasized maintainability by centralizing test utility state management, supporting faster feedback loops and more reliable automated testing.