Worked on targeted reliability and memory management improvements in C++ projects over a two-month period. In the cloudflare/workerd repository, addressed a critical issue by restoring graceful shutdown behavior for AsyncIoStream during socket closures, reverting a previous change to enhance data integrity and connection stability under load. Later, in capnproto/capnproto, reinstated Arc::disown() and Arc::reown() methods to restore proper reference-counting semantics and maintain API compatibility, ensuring stable ownership transfer in the memory management system. Demonstrated disciplined change management, robust testing, and a focus on preserving existing I/O and ownership semantics using C++ and network programming skills.