Harsha contributed to two open-source repositories over a two-month period, focusing on both code quality and feature development. In the optuna/optuna repository, Harsha refactored the parameter importances logic by replacing legacy string formatting with Python f-strings, improving code readability and maintainability without altering core functionality. Later, in ROCm/jax, Harsha developed a Hankel Matrix Construction API, expanding the library’s linear algebra capabilities for advanced signal processing and system identification on GPU platforms. This work involved robust input validation, performance-aware design, and comprehensive testing, demonstrating proficiency in Python, numerical computing, and code refactoring with attention to maintainable engineering practices.