PROLIM Global Corporation ( is hiring a Research Scientist – Physics Simulation & Generative AI for a leading Technology customer.
Research Scientist – Physics Simulation & Generative AI
Location: Remote – US
Job Description
We are seeking a highly experienced Research Scientist V to work on physics-based motion rewards used to post-train generative video models through reinforcement learning (RL).
The researcher will focus on improving physics-based motion evaluation, optimizing simulation pipelines for large-scale RL training, and extending motion modeling from single-body plausibility to human-object and human-scene interactions using 3D mesh representations.
Key Responsibilities
· Improve dynamic and contact terms within physics-based motion reward signals.
· Optimize physics-based rewards to run efficiently inside large-scale RL training loops.
· Extend motion evaluation from single-body motion to human-object and human-scene interactions.
· Develop and work with 3D human pose, motion, and mesh representations.
· Implement and optimize compute-intensive simulation and ML pipelines using Python and PyTorch.
· Apply numerical methods and ensure simulation/solver stability.
· Collaborate on post-training and reinforcement learning approaches for generative video models.
· Validate simulated physical quantities against human-judged ground truth when applicable.
Required Skills
· 5+ years of relevant research/industry experience.
· Strong experience with rigid-body and contact simulation using MuJoCo, Isaac, Bullet, PhysX, or equivalent.
· Experience with 3D human pose and motion representations, preferably SMPL/SMPL-family models.
· Advanced Python and PyTorch skills.
· Experience profiling and optimizing compute-intensive ML or simulation pipelines.
· Experience with reinforcement learning reward design and/or post-training of large generative models.
· Strong knowledge of numerical methods and solver stability.
· Experience with physics-based simulation and motion modeling.
Preferred / Nice-to-Have Skills
· Generative video or diffusion model experience.
· Publications in physics-grounded generative modeling or differentiable simulation.
· Experience scaling simulation workloads.
· Experience validating simulated physical quantities against human-judged ground truth.
· Experience with human-object or human-scene interaction modeling.
Education
Ph.D. preferred in Computer Science, Robotics, Graphics, Mechanical Engineering, Physical Science, or a related field. Equivalent industry research experience may be considered.
Interested Candidates
Please send your updated resume and contact details to:
About PROLIM Corporation
PROLIM is a leading provider of end-to-end IT, PLM, and Engineering Services and Solutions for Global 1000 companies. We understand business as much as technology and help our customers improve profitability and efficiency through high-value consulting, staffing, engineering, and project management services.
Our offerings include Advisory Services, PLM Software & Services, Program Management, Solution Architecture, Training & Staffing, Cloud Solutions, Infrastructure Services, ERP Practices, Quality Assurance Services, and Engineering Services across a wide range of industries.
