Freebsd Kernel Testing Engineer - The goal of the project is to strengthen the reliability and coverage of FreeBSD''s performance monitoring frameworks across core, uncore, and IBS PMCs. You will be responsible for creating new validation tests, improving existing ones, ensuring correct PMC multiplexing behavior, and enabling proper PMC attachment to live processes in FreeBSD environments. This role involves close work with low-level system internals, performance instrumentation, and automated …