During March 2026, contributed to TheAlgorithms/Python by delivering a comprehensive type annotations refactor across core modules, specifically targeting linear_discriminant_analysis.py and jump_search.py. This work focused on enhancing code clarity and ensuring compatibility with static type checkers, thereby improving maintainability and easing future development. Leveraging Python and expertise in type hinting, the developer also addressed Ruff lint and build failures, stabilizing the continuous integration pipeline and reducing delays for pull requests. The approach emphasized disciplined refactoring and static analysis, drawing on skills in algorithm design and data analysis to reduce technical debt and support a more robust codebase.