Project Description: We are building a team to work on the FreeBSD Performance Monitoring Counter (PMC) framework, including hwmon, libpmc, and pmcstat. The project includes development, testing, and cooperation with the upstream FreeBSD open-source community to integrate new features into FreeBSD. Responsibilities: Develop and improve parts of the FreeBSD PMC framework (hwmon, libpmc, pmcstat) Investigate and fix performance and monitoring issues in the FreeBSD kernel Work with the upstream FreeBSD community and integrate changes into mainline FreeBSD Support performance monitoring tools for modern AMD (Zen era) hardware Participate in code reviews and technical discussions Skills Description: Must have: 7 years of experience in relevant technical areas Strong knowledge of FreeBSD kernel architecture and internals Excellent C programming skills Strong understanding of x86 microarchitecture Very good knowledge of performance monitoring on modern x86 systems Nice-to-Have: Previous contributions to upstream FreeBSD kernel code Experience with AMD Zen performance monitoring technologies (PMC, IBS, etc.) Languages: English: B2 Upper Intermediate Seniority: Senior If you`re interesting in the role, send your profile (CV) in English and contact to me. ¡Thank you!