FreeBSD Kernel Testing Engineer
3 semanas atrás
Project description We are looking for an experienced FreeBSD Kernel Testing Engineer to join a project focused on expanding and enhancing the Performance Monitoring Counters (PMC) validation test suite for modern platforms. 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 test development. Responsibilities Develop and enhance the PMC validation test suite on FreeBSD for modern platforms Validate core, uncore, and IBS performance monitoring counters Validate PMC multiplexing on FreeBSD Validate proper PMC attach functionality to existing processes Design and automate test scenarios across various performance monitoring frameworks Collaborate with kernel engineers to analyze results, identify issues, and propose fixes or improvements Maintain documentation, test plans, and validation reports Contribute to continuous improvement of automation frameworks and test coverage Skills Must have 3-5 years of relevant experience Hands‑on experience with modern Unix/Linux kernel validation (FreeBSD kernel validation is a strong bonus) Strong understanding of performance management frameworks (e.g., PMCs, perf, hardware performance counters) Solid understanding of x86 architecture, especially performance monitoring hardware Excellent automation and scripting skills (Python, Shell, or similar) Experience designing and implementing automated test cases for performance monitoring frameworks Ability to work with low‑level debugging, instrumentation, and system performance tools Nice to have Direct experience with FreeBSD performance monitoring framework (hwpmc) and its validation Experience with AMD platform architecture and performance counter implementations Familiarity with kernel-level performance debugging tools Background in continuous integration setup for kernel or system‑level testing #J-18808-Ljbffr
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Testing & commissioning Engineer
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Testing & commissioning Engineer
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Testing & Commissioning Engineer
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São Paulo, Brasil Weichai Power Co., Ltd Tempo inteiroWe are seeking an experienced Testing and commissioning Engineer to join our dynamic team for Data Center projects in Brazil. This position demands a solid foundation in electrical engineering, particularly in testing and Commissioning power generation equipment. The ideal candidate will ensure that all equipment and systems adhere to Industry standards and...
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São Paulo, SP, Brasil Weichai Power Co., Ltd Tempo inteiroWe are seeking an experienced Testing and commissioning Engineer to join our dynamic team for Data Center projects in Brazil. This position demands a solid foundation in electrical engineering, particularly in testing and Commissioning power generation equipment. The ideal candidate will ensure that all equipment and systems adhere to Industry standards and...
