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Mechanical Engineering & Simulation Expert — Hephaestus

$70–$90/hr

Published pay. The final rate depends on your test, experience and country.

United States Language: English Posted 5 Nov 2026

Mechanical Engineering & Simulation Expert — Hephaestus is remote AI-training work for engineers, paying $70–$90/hr, open to applicants in United States. Posted 5 Nov 2026, still open on 5 Nov 2026. Zekai lists it for free; the application goes to the employer's platform.

About this role

Preparing for this role? See the best AI tools for engineers, practise with ready-made prompts for engineers, read How to Use AI for 3D Modeling: A Step-by-Step Guide (2026) and take the free 30-day AI challenge.

Role Overview

our partner is seeking experienced mechanical engineers to build and validate technical tasks for AI systems working on product design, engineering analysis, and simulation. The work focuses on native CAD and analysis artifacts, physically sound models, reproducible solver runs, and measurable design outcomes.

Contributors develop tasks within their specialties, including CAD and assemblies, structural or thermal analysis, fluid mechanics, and manufacturing engineering. CAD evaluation, finite-element analysis, and computational fluid dynamics are distinct workflows; the modeling and verification method should fit the task.

Key Responsibilities

  • Create realistic engineering problems with native geometry, assemblies, materials, loads, boundary conditions, and design requirements.
  • Build and debug analysis models in relevant areas such as stress and deformation, thermal behavior, vibration, or fluid flow. For simulation tasks, assess mesh quality, convergence, sensitivity, and physical consistency.
  • Produce reference solutions and reproducible CAD, FEA, or CFD workflows using tools appropriate to the problem, such as SolidWorks, FreeCAD, CATIA, ANSYS, CalculiX, OpenFOAM, or equivalents.
  • Define checks for dimensions, assembly relationships, mass properties, manufacturability, stress, displacement, temperature, pressure drop, or other relevant outputs. Apply numerical checks, artifact inspection, and engineering judgment where each is appropriate.
  • Package native files, solver settings, scripts, and results; document assumptions and limitations so another engineer can reproduce the work.
  • Validate reference outcomes and incorrect cases, review AI-generated artifacts, and diagnose whether failures arise from the design, model setup, numerical method, or verification logic.
  • Apply relevant standards and methods, including ASME or ISO, GD&T, DFM/DFA, and reliability analysis.

Ideal Qualifications

  • 5+ years of professional mechanical engineering experience, with direct ownership of product designs, engineering analysis, manufacturing processes, or validation.
  • Recent hands-on depth in one or more relevant CAD, FEA, CFD, or thermal-analysis workflows. Expertise across all specialties or all named packages is not required.
  • Ability to automate analysis or inspect results using Python, MATLAB, shell scripts, or comparable tools, with coding-agent assistance where useful.
  • Strong judgment about model fidelity, material behavior, boundary conditions, numerical convergence, and physical plausibility.
  • Clear technical communication and a disciplined approach to reproducible engineering work.
  • A professional engineering credential and prior test automation, design documentation, or engineering-training experience are a plus.

Compensation

  • Writers: $70–$80/hour.
  • Reviewers: $90/hour.

Location: United States.

How applying works

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  2. You go straight to the application. We email you a copy of this role and your link.
  3. Most platforms ask for a CV and a short skills test or AI interview in your field.
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What to know before you apply

Pay
At the published rate, 10 hours a week would be about $700–$900 and 20 hours about $1,400–$1,800 before tax. Hours depend on the project, so treat this as a ceiling, not a promise.
Location
Only applicants located in United States can be paid for this role. Platforms usually verify where you are, so apply only if you are based there.
Credentials
The listing asks for 5+ years of experience. Put it in the first line of your profile: reviewers screen for it before anything else.
Timing
This listing is new today. Projects can close once they have enough people, so it is worth applying while it is open.
Test tips for engineers
  • Check units, loads and code references in every answer.
  • Sketch the system or structure before judging the AI's description of it.
  • Name the standard (Eurocode, ASCE, IEC…) you are applying.
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