42dot

42dot

Principal Mechanical Engineer

Sunnyvale, United States · Principal

Sponsorship not specified$234k-$336kDetected 142 days ago
Product ManagementNegotiationSolidWorksCATIAFEACFDEMI/EMCMechanical DesignLoad TestingMedical DevicesLeadership

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odds of building a lasting career here

59Sponsors, lottery-bound
Cap-exempt (no lottery)0
Sponsors this role80
Entry-level history0
PERM / green-card track0
Lottery odds (Level IV)94
Fits your clock70

Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.

Lottery odds assume a STEM candidate.

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H-1B wage level

the lottery is wage-weighted — each level is one more entry

Level IV · 4×
Level I$117,9981 entry
Level II$141,8352 entries
Level III$165,6933 entries
Level IV$189,5304 entries

This range already reaches Level IV — the maximum four lottery entries.

DOL prevailing wage, 2026-27 wage year · Mechanical Engineers (17-2141) · San Jose-Sunnyvale-Santa Clara, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.

Employer immigration record

from this employer's Department of Labor filings

Files H-1B transfers

1 transfer filing in the last year, covering 1 worker. Median labor-condition decision: 7 days. An employer that already files transfers is one that can take over an existing H-1B.

Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.

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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.
  • Lead Mechanical Design:
  • 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.

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.
  • 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.
  • 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).

Skills

  • Application Review
  • Coding Test
  • 1st interview
  • 2nd interview
  • Offer Negotiation
  • Hiring
  • The screening procedures may vary depending on the position, schedule, or other circumstances.
  • 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
  • Compensation

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.
  • ※ Please review the following information before applying.
  • How to work in 42dot, About 42dot Way → https://42dot.ai/careers/way
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This listing is sourced directly from 42dot's careers page and normalized into a canonical job model.