Worked on kernel and system programming projects, focusing on stability and compatibility improvements across cilium/tetragon and geerlingguy/linux repositories. Addressed breaking changes in the cilium/ebpf library by upgrading to v0.19.0, refactoring program statistics collection and directory traversal to align with new APIs, and validating changes through CI and local testing to ensure production stability. In geerlingguy/linux, resolved ARM64 memory-mapping reliability issues by replacing virt_to_phys with __pa_symbol for correct kernel address translation in vmalloc space, reducing warning noise and improving build reliability. Utilized C, Go, and deep knowledge of ARM64 architecture, eBPF, and kernel development.