Senior Principal System Architect(Rack level)

Job description

Key Responsibilities: 1. System & Topology Architecture Chassis & Rack Definition: Lead the structural, electrical, and logical design of the UALink switch chassis, defining high-speed backplane topologies, cabled scale-up fabrics, and multi-tier switch hierarchies. Signal & Power Integrity Collaboration: Partner with electrical and SI/PI engineering teams to define parameters for ultra-high-speed SerDes routing across PCBs, flyover cables, and optical components, minimizing bit error rates (BER). Scale-Up Fabric Optimization: Architect rack-level and row-level topologies that optimize collective communication paths (e.g., All-Reduce, All-to-All) for tens of thousands of interconnected GPUs. 2. Platform Management & Software Infrastructure Control Plane & BMC Architecture: Architect the end-to-end system management plane. Define how Baseboard Management Controllers (BMCs) monitor, configure, and provision the switch using OpenBMC, Redfish, and PLDM over MCTP. Boot & Initialization Flows: Establish platform-level boot sequencing, multi-rail power sequencing, and secure multi-node firmware update orchestration. Platform Security Architecture: Define the hardware security lifecycle, including Platform Firmware Resiliency (NIST SP 800-193), secure enclave integration, and Component Attestation (SPDM). 3. Advanced RAS & Infrastructure Integration Platform-Level RAS: Architect system-level Reliability, Availability, and Serviceability (RAS) strategies. Define how the platform isolates hardware faults, routes around failed links, handles hot-swapping of fans, power supplies, and switch blades without dropping the AI training cluster. Thermal & Power Orchestration: Establish dynamic power management and telemetry frameworks to balance the massive transient power draws of next-generation AI workloads against rack-level cooling limits. Education & Experience: Degree: Master’s or Ph.D. in Electrical Engineering, Computer Engineering, Computer Science, or a related field. Experience: 20+ years of architectural experience in high-performance server platforms, hyper-scale network switches, or data center infrastructure. Technical Skill Set: System-Level Interconnects: Expert knowledge of high-speed platform fabrics and standards (UALink, NVLink, OAM/UBB, PCIe Gen6/Gen7, CXL, or Ultra Ethernet). Platform Management Standards: Deep expertise in industry-standard management architectures, including Redfish, IPMI, MCTP, SPDM, and OpenBMC. Hardware-Software Interface: Thorough understanding of OS/VMM kernels, device drivers, and platform initialization frameworks (UEFI, ACPI). Data Center Infrastructure: Comprehensive grasp of modern rack architectures (e.g., OCP ORv3), liquid cooling management, and high-density 48V/54V power delivery. Preferred Attributes (Ways to Stand Out): Proven track record of delivering a high-volume, multi-million-gate switching or compute platform successfully into top-tier hyper-scale cloud providers (AWS, Azure, GCP, Meta). Active committee leadership or direct specification contributions within the UALink Consortium, Ultra Ethernet Consortium (UEC), or Open Compute Project (OCP). Experience architecting systems designed for ultra-high-density accelerator form factors (such as Nvidia Blackwell/Vera Rubin grids or AMD Instinct platforms). Renesas is an embedded semiconductor solution provider driven by its Purpose, To Make Our Lives Easier . With a global team of over 21,000 engineers and problem solvers in more than 30 countries, we offer the opportunity to work on world‑leading technology for Automotive, Industrial, Infrastructure, and IoT, shaping a safer, healthier, greener, and smarter future. At Renesas, TAGIE is our culture, grounded in being Transparent, Agile, Global, Innovative, and Entrepreneurial. It shapes how we work, grow and deliver on our purpose together. This collaborative spirit and mindset drive our semiconductor technology to transform industries and impact millions of lives. We believe in rewarding our employees with a competitive benefits package alongside their salary. More information will be provided during the hiring process. Are you ready to join our team and shape the future with us? Renesas Electronics is an equal opportunity and affirmative action employer, committed to supporting diversity and fostering a work environment free of discrimination on the basis of sex, race, religion, national origin, gender, gender identity, gender expression, age, sexual orientation, military status, veteran status, or any other basis protected by law. For more information, please read our Diversity & Inclusion Statement . Renesas Electronics deals with dual-use technology that is subject to U.S. export controls regulations. Under these regulations it may be necessary for Renesas to obtain U.S. government export license prior to release of technology to certain persons. The decision whether or not to file or pursue an export license application is at the sole discretion of Renesas. Renesas is one of the top global semiconductor companies in the world. We strive to develop a safer, healthier, greener, and smarter world, and our goal is to make every endpoint intelligent by offering product solutions in the automotive, industrial, infrastructure and IoT markets. Our robust product portfolio includes world leading MCUs, SoCs, Analog and power products, plus Winning Combination solutions that curate these complementary products. We are a key supplier to the world’s leading manufacturers of electronics you rely on every day; you may not see our products, but they are all around you. Renesas employs roughly 21,000 people in more than 30 countries worldwide. As a global team, our employees actively embody the Renesas Culture, our guiding principles based on five key elements: Transparent, Agile, Global, Innovative, and Entrepreneurial. Renesas believes in, and has a commitment to, diversity and inclusion, with initiatives and a leadership team dedicated to its resources and values. At Renesas, we want to build a sustainable future where technology helps make our lives easier. Join us and build your future by being part of what’s next in electronics and the world.