Senior Electro-Mechanical CAE Engineer for Aerospace

Niostech Global; Azusa (CA); On-site; USD 130,000 - 190,000; Full time

Job summary

Niostech Global is seeking an experienced mechanical engineer to lead the design, analysis, and qualification of cargo-loading Power Drive Units (PDUs) for aircraft systems. The role combines electro-mechanical design with simulation-based assessments of motors, gears, shafts, bearings, and related components.

You will convert operating conditions into defensible analyses, drive design improvements, and support cross-functional reviews.

Qualifications

• Bachelor’s degree in Mechanical, Aerospace, Electro-Mechanical Engineering or related field.
• 10+ years in mechanical design, CAE or electro-mechanical product development.
• Hands-on proficiency with Abaqus or Ansys Mechanical.
• Experience with static, nonlinear, modal, fatigue, and transient analysis.
• Strong understanding of load paths, stresses, and failure modes.
• Knowledge of gearboxes, shafts, bearings, cams, actuators, or similar drives.

Responsibilities

• Lead PDU mechanical and electro-mechanical design, analysis, integration, testing, and qualification.
• Define critical load cases for normal operation, angled ULD contact, and jams.
• Develop and validate assembly/component FEA models for load paths and bearing reactions.
• Analyze gears, planetary gearsets, shafts, bearings, rollers, cams, cables, and housings.
• Perform static, modal, fatigue, and transient dynamic analyses as required.
• Prepare CATIA assemblies and submodels, define connections and boundary conditions.
• Verify models by hand calculations, convergence checks, and sensitivity studies.
• Plan test correlation, lead failure investigations, and cross-functional design reviews.

Skills

FEA fundamentals

Free-body diagrams

Load paths

Mechanical design

Education

Bachelor's degree in Mechanical Engineering

Tools

Abaqus

Ansys Mechanical

CATIA V5

3DEXPERIENCE

Python scripting

MATLAB scripting

Job description

Lead the design, analysis, troubleshooting, and qualification of aircraft cargo-loading Power Drive Units (PDUs). The role combines electro-mechanical product engineering with simulation-based assessment of motors, gears, shafts, bearings, rollers, planetary drives, cams, cables, housings, and mechanical stops. The engineer will convert operating conditions—including angled/off-center ULD loading, drive torque, loaded retraction, jams, and stop impacts—into defensible analyses, correlated tests, and practical design improvements.

Key Responsibilities

Lead PDU mechanical and electro-mechanical design, analysis, integration, testing, and qualification.

Define critical load cases for normal operation, angled/off-center ULD contact, combined drive and ULD loading, lift/retraction, jams, overloads, and stop impacts.

Develop and validate assembly/component FEA models for load paths, stress, deflection, bearing reactions, mounting loads, and contact behavior.

Analyze gears, planetary gearsets, shafts, ball and needle bearings, rollers, cams, crank mechanisms, cables, housings, and mechanical stops.

Perform linear/nonlinear static, contact, modal, fatigue, and transient implicit/explicit dynamic analyses as required.

Prepare and simplify CATIA assemblies, define realistic connections and boundary conditions, and create detailed submodels of critical areas.

Verify models through hand calculations, equilibrium checks, mesh convergence, sensitivity studies, and review of convergence/contact/energy results.

Plan and support test correlation; lead failure investigations, design improvements, technical reporting, and cross-functional design reviews.

Required Qualifications

Bachelor’s degree in Mechanical, Aerospace, Electro-Mechanical Engineering, Applied Mechanics, or a related discipline.

Minimum 10 years of relevant experience in mechanical design, CAE, or electro-mechanical product development.

Hands-on proficiency with Abaqus, Ansys Mechanical, or an equivalent advanced FEA solver.

Experience with linear static, nonlinear contact, modal, fatigue, and transient dynamic analysis of mechanical assemblies.

Strong fundamentals in free-body diagrams, load paths, combined stress, stiffness, contact mechanics, impact, fatigue, and failure modes.

Experience with gearboxes, shafts, bearings, cams, actuators, electric drives, rotating machinery, or similar power-transmission equipment.

Working knowledge of motor current, torque, speed, inertia, gearing, efficiency, and control-response effects on mechanical loads.

CATIA V5 and/or 3DEXPERIENCE experience, test/qualification support, and the ability to independently lead investigations and communicate technical risk.

Preferred Qualifications

Aerospace/defense experience with cargo-loading systems, actuators, or high-reliability electro-mechanical products.

Advanced implicit/explicit nonlinear analysis; fatigue/durability or multibody-dynamics tools such as fe-safe, nCode, SIMPACK, Adams, or Ansys Motion.

Knowledge of AGMA/ISO gear-rating, Hertzian contact, bearing life, test correlation, and Python/MATLAB/solver scripting.