Principal Thermal & Multiphysics Engineer

Main Responsibilities

• Strategy & Architecture
  • Lead end-to-end multiphysics simulation strategy and method development for thermal performance of complex electro-mechanical systems (connectors, high-speed I/O, enclosures, power-dense assemblies)
  • Support thermal architecture development, defining heat transfer strategies across conduction, convection, and radiation to meet system-level performance targets
  • Influence product and technology strategy, contributing to roadmaps in data centers, high-speed interconnects, and power delivery systems
• Simulation Method Development & Support on Design Execution
  • Translate system-level thermal challenges into physics-based models using FEA/CFD to solve electro-thermal, thermo-mechanical, and fluid-thermal problems under real-world conditions
  • Drive thermal design optimization for high-power-density systems, balancing temperature, pressure drop, signal integrity, and manufacturability
  • Support material and interface strategies (TIMs, high-conductivity alloys, advanced polymers/composites) to ensure performance and reliability under thermal cycling, aging, and environmental stress
  • Establish thermal design standards and best practices, including thermal resistance networks, contact/interface heat transfer, airflow and liquid cooling integration, and thermal distortion/tolerance stack-up effects
  • Standardize methodologies and scalable models to enable reusable simulation frameworks, digital twins, and cross-platform design libraries
  • Support innovation in next-generation cooling solutions, including liquid cooling, co-packaged optics integration, high-current connector thermal management, and AI-driven optimization
• Cross-Functional Integration
  • Collaborate with electrical (SI/PI), mechanical, and manufacturing teams to co-optimize system performance, packaging density, and thermal solutions
• Validation & Governance
  • Lead thermal model validation and correlation through lab testing (IR thermography, thermocouples, wind tunnel), model calibration, and development of design margins and derating guidelines
  • Support design governance and technical reviews (DFMEA, PFMEA), ensuring robust multiphysics considerations in product decisions
• Leadership & External Engagement
  • Mentor engineers and build domain expertise in thermal sciences, multiphysics simulation, and physics-based design
  • Represent the organization externally with customers, industry forums, and standards bodies on advanced thermal challenges

Required Skills/Experience

• Bachelor’s degree in Mechanical Engineering or Physics with 12+ years of experience, or Master's with 10+ years of experience, or PhD with 6+ years of experience, or equivalent amount of experience in mechanical product development in connector, electronics, or high-reliability hardware industries.
• Hands-on experience with mechanical design and modeling using tools such as Creo, SolidWorks, or NX.
• Expertise in simulation tools such as ANSYS, Abaqus, or FloTHERM for thermal/structural analysis.
• Proven experience in DFM, DFA, and transition of mechanical designs to high-volume manufacturing.
• Deep understanding of materials science, including polymers, metals, and thermal materials.
• Experience conducting reliability testing: thermal cycling, vibration, drop/shock, and HALT/HASS.
• Strong problem-solving and analytical skills with a focus on root cause analysis and continuous improvement.
• Excellent communication skills to engage with global engineering, operations, and customer teams.

Nice To Have Skills/Experience

• Ph.D. in Engineering or equivalent.
• Experience with micro-mechanics, co-packaged optics, or liquid cooling solutions.
• Familiarity with data analytics, Six Sigma methodologies, or AI-driven simulation optimization.
• Experience working on system-level hardware such as AI servers, switches, or RF modules.
• Patent filings or published research in mechanical design, thermal management, or materials.
• Experience managing cross-functional or global engineering projects.