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Principal Mechanical Engineer

Los Angeles, CA💼 Full-time💰 $170,000–$240,000🗓 2026-06-29 → 2026-07-31

Core

Lead mechanical design, integration, and qualification of ruggedized electronic hardware and enclosures for aerospace and defense applications.

Role type

Principal Mechanical Design Engineer

Builds

Ruggedized electronic hardware, chassis, card-level packaging, and thermal solutions for defense systems

Domain

Aerospace and Defense

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Mechanical design and integration, 3D CAD modeling, structural and thermal analysis, interface control documentation (ICDs), military/aerospace connector expertise, GD&T and tolerance analysis, configuration control, supplier and manufacturing interface, security clearance

Preferred skills

System-level requirements allocation, architecture trade studies, environmental qualification testing (thermal cycling, vibration, shock), commercial FEA/multiphysics simulation (NASTRAN, ABAQUS, ANSYS, CFD, COMSOL), cable harness routing, electromechanical integration, prototype fabrication

Technologies

SolidWorks, NASTRAN, ABAQUS, ANSYS, CFD, COMSOL, MIL-DTL-38999, ARINC, Micro-D, MIL-STD-810

Responsibilities

Lead design and development of ruggedized electronic hardware and enclosures; Own mechanical design responsibility for a subsystem or product area; Develop and maintain 3D CAD models, assemblies, and ICDs; Perform first-order structural and thermal analyses; Drive cross-disciplinary technical resolution; Serve as key technical interface with suppliers and manufacturing partners; Support production transition and fielded system sustainment

Seniority

Principal, hands-on IC with strategic oversight

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