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Real-to-Sim 3D Simulation Expert

Build realistic 3D environments and assets for AI training, matching real-world geometry, materials, and physical behavior. This contract role pays $60 to $150 per hour and requires simulation, 3D modeling, CAD, or environment design experience.

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OpenTrain AI

Coding & Software

Remote Hourly · $60–$150/hr

$60–$150/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Oct 8, 2026

Posted

Open in 53 countries

United States
+ more
  • Algeria
  • Argentina
  • Austria
  • Bahrain
  • Bangladesh
  • Belgium
  • Brazil
  • Canada
  • Chile
  • Colombia
  • Denmark
  • Egypt
  • Ethiopia
  • France
  • Germany
  • Ghana
  • Greece
  • India
  • Indonesia
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Malaysia
  • Mexico
  • Morocco
  • Netherlands
  • Nigeria
  • Oman
  • Pakistan
  • Palestine
  • Peru
  • Philippines
  • Portugal
  • Qatar
  • Saudi Arabia
  • Singapore
  • South Africa
  • Spain
  • Sri Lanka
  • Switzerland
  • Taiwan
  • Thailand
  • Tunisia
  • United Arab Emirates
  • United Kingdom
  • United States
  • Uzbekistan
  • Vietnam

The Work

You will create and configure 3D environments and assets for simulation-based AI training. The work involves translating real-world objects and instruments into simulated versions that match their shape, scale, materials, and physical behavior.

You will also work with scientific and technical subject-matter experts to check accuracy, adjust physical settings, and investigate differences between simulated and real-world behavior.

  • Build and configure 3D assets and environments in Isaac Sim, Gazebo, MuJoCo, or a similar simulation platform.
  • Translate real-world objects and instruments into simulation with accurate geometry, scale, materials, and physical behavior.
  • Tune mass, friction, collision properties, and joint dynamics so simulated objects behave like their real counterparts.
  • Troubleshoot discrepancies between simulated and real-world behavior.
  • Collaborate with scientists and subject-matter experts to validate simulated environments.

What It Pays and Takes

This is a part-time contractor role for applicants in the listed countries. No previous AI experience is required, but you should bring relevant simulation, 3D, CAD, environment design, or physics knowledge.

  • $60 to $150 per hour.
  • Part-time contract work.
  • Open to candidates in multiple countries across the Americas, Europe, Africa, Asia, and the Middle East.
  • Professional fluency in English is required.
  • Hands-on experience with at least one robotics or physics simulation platform, such as Isaac Sim, Gazebo, MuJoCo, Unity, Unreal, or PyBullet.
  • Background in 3D modeling, CAD, or environment design.
  • Understanding of physics simulation, including rigid-body dynamics, materials, and sensors.
  • Strong collaboration skills with scientific and technical stakeholders.
  • Careful attention to detail when matching real-world fidelity.

How It Works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI Training Work

AI training is the human work used to prepare and evaluate the examples that AI systems learn from. In this role, your 3D simulation and physics knowledge helps create realistic training environments so models can learn from more accurate data.

Requirements

  • Experience: Entry level
  • Languages: English

How to apply

  1. Apply here on OpenTrain. You create a free account, and we send you to the hiring platform.
  2. Complete your application on the hiring platform.

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