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Majestic Labs AI

Mechanical Engineer – SoC to Rack Integration

Posted 6 Days Ago
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In-Office
Los Altos, CA
Expert/Leader
In-Office
Los Altos, CA
Expert/Leader
Design and validate modular electromechanical chassis and rack-level systems for data centers (HPC/AI/Enterprise). Own product lifecycle through high-volume manufacturing, perform thermal/structural/vibration analysis using FEA, specify metal fabrication and liquid/power connector integration, and align across silicon, power, and optical teams.
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Description

We are seeking a Principal Mechanical Engineer to lead the hardware definition of our next-generation AI infrastructure. This is a high-impact individual contributor role where you will serve as the primary technical authority for the physical architecture of advanced server platforms. You will bridge the critical gap between ultra-high-power silicon packaging, liquid-cooled node design, and massive-scale rack deployments.

Key Responsibilities

  • Blade & Chassis Design: Lead the end-to-end mechanical definition of server blades, high-density chassis, and rack-level enclosures.
  • Structural Hardware: Architect the integration of sliding rails, blind-mate connectors, precision standoffs, and high-load extraction handles.
  • Power & Interconnects: Define mechanical paths for ultra-high-density power delivery busbars and complex cable management systems.
  • Cold Plate & Fluid Management: Own mechanical integration of liquid cooling systems, providing design feedback on cold plate layouts, manifold distribution, and QD/leak-mitigation compatibility.
  • Thermal Strategy: Support hybrid air/liquid cooling solutions for 1kW+ nodes, collaborating with thermal specialists on CFD-informed design decisions.
  • HVM Optimization: Optimize designs for high-volume manufacturing using precision milling, die casting, and complex sheet metal fabrication.
  • Environmental Ruggedization: Ensure system integrity against transportation shock and vibration and extreme thermal and humidity cycling.
  • Lifecycle Design: Implement Design for Cost (DfC) and Design for Assembly (DFA) principles to ensure seamless serviceability and global deployment readiness.
Requirements

Required Qualifications

  • B.S. or M.S. in Mechanical Engineering.
  • Design Experience: 12+ years in design and validation (MDVT) of modular electromechanical chassis and rack level systems in data centers for HPC/AI/Enterprise segment.
  • Proven track record of owning at least one full product lifecycle — from concept through high-volume manufacturing (HVM).
  • Expert-level understanding of metal fabrication processes including milling, casting, and sheet metal, and how they impact thermal performance and structural integrity.
  • Technical knowledge of fluid dynamics, wetted material compatibility, and the mechanical nuances of drip-free connector integration.
  • Proficiency in FEA tools for structural and vibration analysis.
  • Demonstrated ability to drive technical alignment across silicon, power, and optical engineering teams.

Preferred Qualifications

  • Direct experience with AI/GPU-based architectures and ultra-high-density power delivery systems.
  • Deep familiarity with Open Compute Project (OCP) or ORV3 standards.
  • Experience with blind-mate liquid and power interfaces.

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