Robotics Simulation Engineer
Alignerr · United States · 2 mo ago
RemoteRemoteEngineeringContract
About The Role
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You'll Do
- Design and implement high-fidelity robot models (URDF/MJCF) with accurate kinematics, dynamics, and contact properties
- Build and maintain simulation environments using MuJoCo, NVIDIA Isaac Sim, and/or Gazebo
- Develop end-to-end simulation pipelines for robot training, testing, and validation
- Tune physics parameters — friction, damping, inertia, actuator models — to maximize sim-to-real transfer
- Integrate simulations with ROS2 for perception, planning, and control workflows
- Write clean, performant code in Python and/or C++ to support simulation infrastructure
- Collaborate asynchronously with robotics researchers and engineers on model accuracy and environment design
- Profile and optimize simulation performance for large-scale or parallelized runs
- Document simulation configurations, model parameters, and pipeline architecture
Who You Are
- Strong hands-on experience with at least one major robotics simulator: MuJoCo, NVIDIA Isaac Sim, or Gazebo
- Proficient in Python and/or C++ in a robotics or scientific computing context
- Solid understanding of rigid-body dynamics, contact mechanics, and control theory
- Experience creating and validating robot models (URDF, MJCF, or SDF formats)
- Familiarity with ROS2 and its integration with simulation environments
- Self-directed, detail-oriented, and effective when working independently
- Strong problem-solving instincts and a drive to close the sim-to-real gap
Nice to Have
- Experience with domain randomization, sim-to-real transfer techniques, or reinforcement learning in simulation
- Familiarity with GPU-accelerated simulation (e.g., Isaac Gym, MuJoCo MJX)
- Background in legged locomotion, manipulation, or multi-body systems
- Experience with CI/CD for simulation testing and automated validation
- Knowledge of sensor simulation — cameras, LiDAR, IMUs, force/torque sensors
- Contributions to open-source robotics or simulation projects
- Graduate-level coursework or research in robotics, controls, or computational physics