Lead Physics Simulation Engineer (Dynamics)

Zeromatter Technologies Inc; Mountain View (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Zeromatter Technologies Inc is seeking a Physics Simulation Engineer to extend the dynamics engine behind vehicles, drones and robots. You will implement numerical solvers, advance collision handling and adapt cutting-edge simulation research for production use.

The role emphasizes large-scale, stable simulations, code quality, and collaboration with controls/validation teams. Strong C++/Rust and math background are essential.

Qualifications

• Engineering or related technical degree or equivalent hands-on experience shipping a physics/dynamics engine.
• Significant experience developing in real-time or offline physics/dynamics engines for games, VFX, robotics, or research.
• Strong software engineering practices including clean architecture, testing, code review, and version control.
• Strong understanding of linear algebra, quaternions and numerical methods.
• Ability to read and adapt techniques from simulation research papers.
• Familiarity with numerical time integration for dynamics (implicit/semi-implicit Euler, symplectic, PBD/XPBD).
• Experience solving large systems via iterative or direct solvers.
• Experience with contact/collision handling in simulation contexts.
• Experience building dynamics simulations at scale (BVH, multithreading, GPU, sparse matrices).
• Strong debugging and profiling skills in a numerical context.
• Proficiency in Rust and/or C++.
• Bonus: variational/energy-based formulations of implicit integration.

Responsibilities

• Implement and extend numerical solvers for dynamics simulation with scalable methods.
• Develop high-fidelity contact and collision handling for large-scale scenes.
• Read, evaluate, and implement techniques from simulation research for production engines.
• Validate correctness of new methods mathematically and empirically.
• Diagnose and resolve simulation instabilities and profile solver performance.
• Contribute to material/constitutive models and DOF representations.
• Write clear documentation translating math into engineer friendly concepts.
• Collaborate with controls and characterization engineers to serve validation needs.

Skills

Software engineering practices

Linear algebra

Quaternions

Multivariable calculus

Numerical methods

Reading/ adapting research papers

Time integration (implicit/semi-implic

Large systems solving (PCG/solvers)

Contact/collision handling

Debugging and profiling

Rust

C++

Education

Engineering or related technical degree (CS/Math/Physics/Mech/Aero)

Tools

Rust

C++

GPU programming

BVH-based collision detection

Multithreading

Sparse matrix management

Job description

Zeromatter Technologies Inc is seeking a Physics Simulation Engineer to extend the dynamics engine behind vehicles, drones and robots. You will implement numerical solvers, advance collision handling and adapt cutting-edge simulation research for production use.

The role emphasizes large-scale, stable simulations, code quality, and collaboration with controls/validation teams. Strong C++/Rust and math background are essential.