Physics Simulation Scientist (Robotics)

Location: San Mateo, United States

Base salary: $100,000–$300,000 USD per year

Company

hirify.global is building a general-purpose robotic intelligence system that adapts to unseen scenarios through data-driven machine learning.

What you will do

• Develop physics solvers and modeling methods for high-degree-of-freedom, contact-rich robotics tasks.
• Design GPU-accelerated solvers optimized for throughput, stability, and scalability.
• Profile and optimize simulation performance on modern GPUs and distributed clusters.
• Build a next-generation open-source simulation stack for robotics sim-to-real transfer.
• Collaborate with scene-generation engineers, robotics engineers, ML researchers, external experts, and the open-source community.
• Shape the long-term technical direction of physical modeling and sim-to-real strategy.

Requirements

• MS or PhD in Physics, Robotics, Computer Science, Applied Mathematics, Engineering, or a related field, or equivalent hands-on experience.
• Strong experience with physics engines or high-fidelity simulators for articulated rigid bodies.
• Deep understanding of dynamics, contact modeling, constraint-based methods, integrators, and accuracy–speed tradeoffs.
• Expertise in CUDA and GPU programming, including optimization at scale.
• Proficiency in C++ and Python and experience building reliable systems for technical teams.
• Familiarity with vectorized environments, domain randomization, large-scale rollouts, ML/RL pipelines, and real robot platforms.

Nice to have

• Experience with deformable-body simulation, fluids, or differentiable simulation.
• Publications, open-source contributions, or shipped systems in simulation, robotics, graphics, or numerical computing.

Culture & Benefits

• Work alongside people ranging from new graduates to domain experts.
• Collaborate with external experts and contribute to an open-source robotics simulation stack.
• Explore new approaches to robust robotic intelligence and sim-to-real transfer.