Worked on performance optimization and memory safety in major open source editor projects. In the vim/vim repository, refactored the xxd utility’s colored output to print color escape sequences only when changes occur, using separate arrays for colors and text to reduce redundant codes and CPU overhead. This C-based optimization improved rendering speed for large hex dumps. Later, addressed a heap-use-after-free bug in MeanderingProgrammer/neovim by ensuring memory safety during syntax-driven buffer wipes, applying targeted changes to autocommand handling. Demonstrated expertise in C programming, Lua scripting, and code optimization, with a focus on low-level efficiency and robust editor reliability.