Antriksh Gupta worked on the pandas-dev/pandas repository, focusing on improving test resource management and reliability. He refactored the test_select.py module to replace the ensure_clean_store approach with HDFStore-backed resource handling using temp_file, addressing issues with file-handle leaks and test flakiness. By consolidating resource cleanup practices, he enabled more predictable and maintainable test execution across the suite. His work leveraged Python and the pandas library, with an emphasis on data management and testing best practices. The changes contributed to enhanced CI stability and streamlined test maintenance, demonstrating a thoughtful approach to engineering challenges within a large codebase.