Worked across the sonic-net/sonic-mgmt, sonic-buildimage, and sonic-utilities repositories to deliver targeted backend and CLI improvements using Python, Shell, and YAML. Addressed a critical bug in candidate port selection logic, refining the filtering mechanism to ensure correct inclusion criteria and a strict four-port cap, which stabilized management workflows. Enhanced test automation by expanding sFlow coverage and improving Marvell Teralynx test reliability through Python 3 compatibility and known-issue handling. Improved CLI robustness by fixing parameter handling errors and implementing context-aware error suppression for cleaner user feedback. Demonstrated strengths in backend development, CI/CD, and system administration while focusing on reliability and maintainability.