Worked on backend robustness improvements for the mozilla/onnxruntime repository, focusing on enhancing compatibility between the MaxPool operator and the QNN backend. Addressed a blocking issue by removing an assertion that previously rejected the auto_pad='VALID' configuration, thereby enabling support for zero-padding scenarios and improving interoperability with the QNN execution provider. Utilized C++ for backend development and applied unit testing to ensure no regressions occurred in related functionality. The work targeted a specific bug fix rather than feature development, demonstrating attention to detail and a methodical approach to maintaining and extending backend operator compatibility within a complex codebase.