42dot

42dot

Principal Mechanical Engineer

Sunnyvale, United States · Principal

Sponsorship not specified$234k-$336kDetected 48 days ago
Product ManagementNegotiationSolidWorksCATIAFEACFDEMI/EMCMechanical DesignLoad TestingMedical DevicesLeadership

About the role

  • At 42dot, we are building the high-performance hardware that powers the next generation of autonomous mobility. As the Principal Mechanical Engineer, you will be the technical lead for all mechanical aspects of our compute platforms. Your scope ranges from the precision engineering of ECU enclosures and advanced thermal solutions to the design of the physical infrastructure-fixtures and test benches-that enables our firmware and hardware validation.
  • Beyond design, you are a process architect. You will own the mechanical product development lifecycle, define engineering workflows, and manage the PLM (Product Lifecycle Management) for all mechanical components, ensuring a seamless transition from prototype to volume manufacturing.
  • At 42dot, we are building the high-performance hardware that powers the next generation of autonomous mobility.

Responsibilities

  • Lead Mechanical Design: Drive the design and development of ECU enclosures, fixtures, prototypes, and test benches, and their integration to manufacturing and test infrastructure
  • Thermal & Environmental: Own the thermal design strategy for high-compute electronics, ensuring reliability under extreme automotive environmental conditions.
  • Process & PLM: Define and manage the mechanical engineering workflow. Direct the implementation and maintenance of PLM systems to ensure robust version control and documentation for all mechanical assemblies.
  • DFX Leadership: Implement rigorous DFM (Design for Manufacturing) and DFT (Design for Test) principles to ensure products are optimized for high-volume production and automated assembly.
  • Validation & Verification: Design and execute comprehensive product validation plans, including mechanical stress testing, vibration analysis, and thermal cycling.
  • EMC Integration: Partner with EE teams to design enclosures that meet strict EMC/EMI shielding requirements for safety-critical automotive applications.
  • Drive the design and development of ECU enclosures, fixtures, prototypes, and test benches, and their integration to manufacturing and test infrastructure
  • Own the thermal design strategy for high-compute electronics, ensuring reliability under extreme automotive environmental conditions.
  • Define and manage the mechanical engineering workflow.
  • Implement rigorous DFM (Design for Manufacturing) and DFT (Design for Test) principles to ensure products are optimized for high-volume production and automated assembly.

Requirements

  • Industry Tenure: 20+ years of experience in mechanical design and product development, specifically for electronics packaging.
  • NPI Mastery: Proven track record of leading New Product Introduction (NPI) cycles, taking products from initial prototype through to volume manufacturing.
  • 20+ years of experience in mechanical design and product development, specifically for electronics packaging.
  • Expert-level proficiency in 3D CAD (SolidWorks, CATIA, or similar) and deep knowledge of manufacturing processes (injection molding, die casting, CNC, sheet metal).
  • All documents must be submitted in PDF format and under 30MB in size.
  • Sector Expertise: Deep experience in safety-critical industries (e.g., Automotive, Aerospace, or Medical Devices).

Nice to have

  • Tooling & Fabrication: Expert-level proficiency in 3D CAD (SolidWorks, CATIA, or similar) and deep knowledge of manufacturing processes (injection molding, die casting, CNC, sheet metal).
  • Simulation Skills: Experience in FEA (Finite Element Analysis) and CFD (Computational Fluid Dynamics) for thermal and structural validation.

Skills

  • Experience in FEA (Finite Element Analysis) and CFD (Computational Fluid Dynamics) for thermal and structural validation.
  • Standards Fluency: Strong understanding of automotive standards for environmental sealing (IP ratings), shock, and vibration.
  • Interview Process
  • Application Review - Coding Test - 1st interview - 2nd interview - Offer Negotiation - Hiring
  • The screening procedures may vary depending on the position, schedule, or other circumstances.
  • Compensation
  • $233,700 - $336,300
  • Additional Information
  • 42dot does not accept unsolicited resumes and will not pay fees for any such submissions. Equal Opportunity Statement
  • ※ Please review the following information before applying.
  • How to work in 42dot, About 42dot Way → https://42dot.ai/careers/way

Compensation

  • $233,700 - $336,300
  • 42dot does not accept unsolicited resumes and will not pay fees for any such submissions.

Company info

  • 42dot is a mobility AI company committed to solving mobility challenges with software and AI.
  • As the Global Software Center of Hyundai Motor Group, 42dot pioneers the future of mobility by advancing the development of software-defined vehicles.
  • We develop safety-first, user-centric software-defined vehicle technologies that deliver the latest performance through continuous updates like smartphones.
  • By advancing software and AI technology, 42dot envisions a world where everything is connected and moves autonomously through a self-managing urban transportation operating system.

Equal opportunity

  • Statement
  • 42dot is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.
  • 42dot is an Equal Opportunity Employer.
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