Masami has been a tech lead at Linaro since 2016. Masami has been working on the Linux kernel since 2002. He started working on the Linux Kernel State Tracer (LKST) and joined the SystemTap project. He has been a maintainer of the kprobes and its related features, including ftrace dynamic events, perf-probe command. His recent kernel works are boot-time tracing and extra boot configuration.