Robotics ML Expert, AI

G2i Inc.

Robotics ML Expert designing and iterating on MuJoCo simulation environments for robotics research and AI training. Implementing RL algorithms and evaluating policies for stability and transfer potential.

Posted 4/21/2026contractRemote • Florida • 🇺🇸 United StatesMid-LevelSenior💰 $30 - $70 per hourWebsite

Tech Stack

Tools & technologies

PythonPyTorch

About the role

Key responsibilities & impact

Design, build, and iterate on MuJoCo simulation environments for robotics research and AI training
Implement and tune RL algorithms (PPO, SAC, TD3) to train agents on simulated tasks
Define reward functions, observation spaces, and action spaces that produce robust, transferable policies
Debug and optimize physics simulations — contact models, actuator dynamics, scene configs
Evaluate trained policies for stability, generalization, and sim-to-real transfer potential
Document environment specs, training procedures, and experimental results clearly
Collaborate async with research teams and stay current with advances in robot learning and embodied AI

Requirements

What you’ll need

Strong hands-on experience with MuJoCo (or via dm_control, Gymnasium-Robotics, or similar)
Solid understanding of RL theory and practical training pipelines
Proficient in Python + ML frameworks (PyTorch or JAX)
Experience defining reward functions for complex robotic tasks
Familiar with robot kinematics, dynamics, and control fundamentals
Can read and write MJCF/XML model files and understand their physics implications
Self-directed, detail-oriented, comfortable working independently in an async environment
Strong written communicator — a big part of this role is explaining your reasoning clearly

Benefits

Comp & perks

Identity verification
Weekly payment via PayPal or Stripe

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

MuJoCoReinforcement LearningPPOSACTD3PythonPyTorchJAXrobot kinematicsrobot dynamics

Soft Skills

self-directeddetail-orientedindependent workstrong written communication