Worked on stabilizing and standardizing test infrastructure across five major Go repositories, including CosmWasm/wasmvm, OffchainLabs/nitro, rollkit/rollkit, pulumi/pulumi, and ChainSafe/gossamer. Refactored test suites to adopt Go’s t.TempDir for managing temporary directories, replacing manual os.MkdirTemp usage. This approach improved test isolation, enabled automatic cleanup, and reduced boilerplate code, leading to more reliable and maintainable continuous integration workflows. Demonstrated proficiency in Go development, refactoring, and testing best practices by implementing dedicated commits in each repository. Addressed both feature enhancements and bug fixes, focusing on cross-repo consistency and maintainability within Go-based codebases and test environments.