Robotics Simulation Software Engineer

Description*

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.

• Import a new robot prototype station from SolidWorks CAD into the simulator with accurate arm kinematics, rail geometry, sensor placement, and tote collision models• 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

• 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

• 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)

• 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