Worked on hardening the system test suite for the 0chain/system_test repository, focusing on improving reliability, developer experience, and CI efficiency. Refactored authentication ticket retrieval error handling to surface specific errors, making failures easier to diagnose during testing. Enhanced CI workflows by updating linting logs, which provided more detailed feedback for faster issue identification. Optimized HTTP request handling by leveraging Go’s http.NoBody and io.ReadAll, reducing resource usage during test execution. The work was implemented using Go and YAML, with an emphasis on CI/CD, error handling, and testing practices, resulting in a more robust and maintainable system test environment.