Worked on the KratosMultiphysics/Kratos repository to enhance solver reliability and maintainability in C++ codebases. Focused on core bug fixes, including resetting the solver’s internal state between solves to prevent cross-solve contamination and correcting enum-to-float conversions for forward compatibility with C++20 standards. Applied targeted regression debugging and precise code maintenance to address edge-case failures and ensure smoother transitions to modern C++ features. Demonstrated expertise in C++ development and linear solver internals, with careful attention to type safety and future-proofing. The work contributed to increased solver stability and reduced maintenance overhead for ongoing and future development within the project.