Robotics Simulation Software Engineer (W2 Only / No C2C)

Responsibilities

• Create, import, and maintain high-fidelity 3D models of robotic workcells, converting CAD designs into simulation-ready assets.
• Tune simulation assets to balance detail vs execution speed of simulation.
• Convert OBJ collision meshes to VTK tetrahedral format to improve physics contact accuracy for robotic manipulation.
• Build a model validation script that checks inertia values, texture transparency, and mesh integrity at build time.
• Task Breakdown 3D Asset Pipeline: Convert SolidWorks/CAD assemblies into simulation-ready formats (SDF, URDF, glTF, VTK) with accurate kinematics, collision geometry, inertia properties, and visual materials (PBR).
• Station Configuration: Build and maintain robotic workcell configurations including robot arms, rails, sensors, end-effectors, pods, conveyors, and environmental structures.
• Collision Modeling: Create and optimize collision meshes using tetrahedral meshing workflows (RoLoPoly, TetGen, Drake mesh refiner) for accurate physics contact simulation.
• Sensor Setup: Configure simulated cameras, depth sensors, and other perception hardware with accurate field-of-view parameters.
• Validation: Build model integrity tests, verify FK/IK accuracy against real hardware, and maintain asset quality standards (mass, inertia, texture transparency, mesh integrity).
• Customer Delivery: Independently manage asset import/update requests from robotics program teams, meeting SLA timelines for new station deliveries.

Requirements

• Experience with USD (Universal Scene Description) model format.
• Familiarity with PBR materials, glTF format, and real-time rendering pipelines.
• C++ experience (our simulator core is C++).
• Web 3D visualization (Three.js, WebGL).
• Understanding of simulation contact models and deformable body simulation.
• Experience converting CAD (SolidWorks, STEP, IGES) to simulation-ready assets.
• Familiarity with camera simulation (intrinsics, distortion models, synthetic data generation).
• Years Of Experience: 5+ years professional SW development experience.
• 1+ year working with 3D modeling tools (Blender, SolidWorks, Maya, or equivalent).
• Experience with robotics simulation formats: URDF, SDF, MJCF, or similar.
• Familiarity with mesh processing: decimation, convex decomposition, tetrahedral meshing, collision geometry generation.
• Understanding of rigid body kinematics (joint types, coordinate frames, forward/inverse kinematics).
• Proficiency in Python for scripting asset pipelines and automation.
• 1+ year cumulative experience with at least one of: game engines (Unreal, Unity), physics engines (Drake, MuJoCo, Bullet, PhysX), or robotics simulation platforms (Gazebo, Isaac Sim).
• Demonstrated ability to independently own and deliver technical work with minimal oversight.

Qualifications

• Experience with physics engines (Drake, MuJoCo, Bullet, PhysX).
• Experience with robotics simulation platforms (Gazebo, Isaac Sim).
• Experience with game engines (Unreal, Unity).
• Experience with mesh processing: decimation, convex decomposition, tetrahedral meshing, collision geometry generation.
• Experience with rigid body kinematics (joint types, coordinate frames, forward/inverse kinematics).
• Experience with PBR materials, glTF format, and real-time rendering pipelines.
• Experience with camera simulation (intrinsics, distortion models, synthetic data generation).
• Experience with USD (Universal Scene Description) model format.
• Experience with CAD (SolidWorks, STEP, IGES).
• Experience with simulation contact models and deformable body simulation.
• Experience with simulation asset creation and maintenance.
• Experience with model validation scripts.
• Experience with 3D modeling tools (Blender, SolidWorks, Maya, or equivalent).
• Experience with robotics simulation formats: URDF, SDF, MJCF, or similar.
• Experience with simulation asset pipelines and automation.

Skills

• Physics engines (Drake, MuJoCo, Bullet, PhysX).
• Robotics simulation platforms (Gazebo, Isaac Sim).
• Game engines (Unreal, Unity).
• Miscellaneous simulation software (e.g., Gazebo, Isaac Sim).
• Mesh processing (decimation, convex decomposition, tetrahedral meshing, collision geometry generation).
• Rigid body kinematics (joint types, coordinate frames, forward/inverse kinematics).
• PBR materials, glTF format, and real-time rendering pipelines.
• Camera simulation (intrinsics, distortion models, synthetic data generation).
• USD (Universal Scene Description) model format.
• CAD (SolidWorks, STEP, IGES).
• Simulation contact models and deformable body simulation.
• Simulation asset creation and maintenance.
• Model validation scripts.
• 3D modeling tools (Blender, SolidWorks, Maya, or equivalent).
• Robotics simulation formats: URDF, SDF, MJCF, or similar.
• Simulation asset pipelines and automation.

Benefits

• Medical, dental & vision coverage.
• Critical Illness, Accident, and Hospital coverage.
• Life Insurance (Voluntary Life & AD&D for the employee and dependents).
• Short and long-term disability coverage.
• Health Spending Account (HSA).
• Transportation benefits.
• Employee Assistance Program.
• Time Off/Leave (PTO, Vacation or Sick Leave).

Pay and Benefits

The pay range for this position is $90.00 - $100.00/hr.

About the Role

We’re looking for a Simulation Modeling Engineer to join our team building physics-based simulation environments for Robotics. You’ll create, import, and maintain high-fidelity 3D models of robotic workcells, converting CAD designs into simulation-ready assets that enable robot motion planning, controls development, and system validation before physical hardware exists.