Robotics Simulation Engineer — Bridge Real‑World & Sim

Weave Robotics, Inc.; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Weave Robotics, Inc. in San Francisco invites you to join a hands-on simulation-focused team shaping the future of home robotics.

You will own the simulation stack, integrate environments, assets, and robot models, and ensure fidelity from CAD to sim-ready assets. The role emphasizes building a fast, scalable, GPU-accelerated sim platform, aligning sim with real hardware, and enabling rapid experimentation.

Qualifications

• 3+ years building simulation or robotics software.
• Physics literacy: knowledge of contact solvers, fabrics solvers, integrators, and friction models.
• Strong Python and C++ and the engineering habits to make a research-facing platform reliable.
• Performance skill: you’ve profiled and scaled GPU-parallel workloads and treat environment throughput as a feature.
• Respect for the real robot. You’ve compared sim to hardware honestly and changed the sim.

Responsibilities

• Own the sim stack. Isaac Lab, MuJoCo, or equivalent: environments, assets, robot models, and the tooling around them, kept current with every hardware revision that ships.
• Model what matters. Actuator models (torque limits, friction, thermal behavior) and contact parameters identified against dyno and robot data with the motor control and controls teams; you know which fidelity buys transfer and which buys nothing.
• Make training fast. GPU-parallel environment throughput, profiling, and the determinism and seeding discipline that make experiments reproducible.
• Serve sim-to-real. System-identification pipelines, domain randomization tooling, and honest side-by-side measurement of where simulation and hardware disagree.
• Catch regressions before hardware does. Scenario and regression suites that run controllers and policies in sim on every change.
• Keep assets true. The pipeline from CAD and robot description to sim-ready assets, so simulation tracks the robot we actually build.

Skills

Python

C++

GPU profiling

Simulation software

Robotics knowledge

Tools

MuJoCo

Isaac Lab/Isaac Sim

Drake

Job description

Weave Robotics, Inc. in San Francisco invites you to join a hands-on simulation-focused team shaping the future of home robotics.

You will own the simulation stack, integrate environments, assets, and robot models, and ensure fidelity from CAD to sim-ready assets. The role emphasizes building a fast, scalable, GPU-accelerated sim platform, aligning sim with real hardware, and enabling rapid experimentation.