Simulation Engineer (Mujuco)

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    "description": "<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">About Menlo</span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Menlo Research is an Applied R&amp;D lab building Asimov, an open-source humanoid robot platform, and the full software stack that powers it. Our mission is to make humanoid labor economically viable -- turning software into physical labor at scale. We build across the full stack: hardware architecture, locomotion, autonomy, simulation, and infrastructure. We move fast, ship to real robots, and open-source everything we can. If you want your work to matter beyond a paper or a demo, this is the place.</span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\"> </span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">The Role</span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">The hard problem in simulation is not building a demo environment. It is building digital twins that are faithful enough to train policies, close sim-to-real gaps, and accelerate hardware development at scale. As a Software Engineer, Digital Twin, you will own the environments, tooling, and pipelines that make Asimov's virtual counterpart a first-class engineering asset. You will work across MuJoCo, Isaac Sim, and Unreal Engine -- using the right tool for the right layer of the stack, from physics training to photorealistic synthetic data generation.</span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\"> </span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">What You Will Do</span></p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Build and maintain high-fidelity digital twin environments for Asimov across MuJoCo, Isaac Sim, and Unreal Engine, calibrated to real hardware behavior.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Design and own the systems -- not just the environments -- that let locomotion, autonomy, and perception teams generate, validate, and iterate on simulation scenarios at scale.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Build pipelines for asset import, USD and MJCF workflows, sensor modeling, and real-to-sim calibration to keep digital twins synchronized with evolving hardware.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Develop photorealistic rendering pipelines in Unreal Engine for synthetic data generation and perception model training.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Work with hardware and mechatronics teams to model actuator dynamics, contact physics, and structural behavior, ensuring simulation parameters reflect physical ground truth.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Integrate digital twin environments with Menlo's locomotion training pipeline (Cyclotron) and autonomy stack, enabling teams to run experiments and close the sim-to-real gap.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Contribute to the open-source Asimov simulation stack, including tooling, documentation, and reproducible environment workflows.</span></li>\n</ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\"> </span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">What You Will Bring</span></p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Hands-on experience building or maintaining simulation environments in MuJoCo, Isaac Sim, or a comparable physics engine -- on real robot development programs, not just coursework.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Proficiency in Python and C++.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Solid understanding of rigid body dynamics, contact simulation, and how simulator parameters translate to physical hardware behavior.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Experience building the systems that enable simulation at scale: procedural generators, validation pipelines, CI hooks, or environment tooling.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Familiarity with ROS2 and common robotics data formats.</span></li>\n</ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\"> </span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">Nice to Have</span></p>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Unreal Engine experience for robotics simulation or synthetic data pipelines.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Prior work on sim-to-real transfer for legged locomotion or dexterous manipulation.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Experience with USD, URDF, or MJCF asset workflows.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Exposure to domain randomization, physics parameter tuning, or reality-gap analysis.</span></li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">Open-source contributions to robotics or simulation projects.</span></li>\n</ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\"> </span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt; font-weight: bold\">Why Join Menlo</span></p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 12pt\">The environments you build are not test fixtures. They are where every new locomotion policy, autonomy behavior, and hardware iteration is born before it touches a real robot. You will have direct collaboration with locomotion, autonomy, and hardware teams -- short feedback loops, high visibility, and real stakes. We open-source aggressively. If you want your simulation work to matter in the real world, this is where to do it.</span></p>",
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