Here at Humanoid, we believe in a future where robots amplify human potential. That’s why we’ve set out on a mission to build the world’s most capable, commercially-scalable, and safe humanoid robots. We’re bringing that mission to life with HMND‑01 - our rapidly developed humanoid platform being deployed in real industrial environments - and we’re growing the team to take it even further.
About The Role
We design robots in simulation before building them in hardware.
As a Robotics Simulation & RL Engineer, you will help design and validate future generations of our robotic platforms - including bipedal and wheeled systems - using physics simulation and reinforcement learning.
You will develop tools to determine whether a robot design can perform real-world tasks before committing to hardware. Your work will directly inform robot architecture, actuator selection, sensor placement, and control strategies.
A key responsibility of this role is owning and validating the canonical robot models (URDF and simulation assets) used across simulation and control stacks.
What You’ll Do
Design and evaluate
new robot platforms
using physics simulation
Analyze robot capabilities including
workspace, manipulability, dynamic balance, and torque limits
Use
reinforcement learning to stress-test robot designs
and explore capability limits
Own and maintain
URDF models
of current and future robot platforms
Maintain the
CAD → URDF → simulation pipeline
Develop tools and benchmarks to evaluate
locomotion, manipulation, and platform robustness
Provide
quantitative feedback to hardware teams
on actuator sizing, joint placement, mass distribution, and sensor layout
Collaborate with
mechanical, control, and perception teams
to guide platform design decisions
What We're Looking For
M.Sc
. or Ph.D. in
Robotics, Mechanical Engineering, Control,
or a related field
Strong foundation in
robot kinematics and dynamics
Experience with
robot simulation environments
(MuJoCo, Isaac Sim, Gazebo, or similar)
Experience with
reinforcement learning in robotics or physics-based simulation
Experience working with URDF or similar robot description formats
Strong programming skills in Python and/or C++
Experience training RL locomotion or manipulation policies
Nice to have:
Experience with
legged, humanoid, or wheeled robots;
Experience with
whole-body control or torque-controlled robots;
Experience with
simulation-driven hardware design;
Experience building
large-scale RL training pipelines.
What We Offer
Comprehensive health coverage for US‑based employees, including fully paid medical, dental, and vision insurance, with virtual care and employee assistance resources.
Meaningful time off to rest and recharge: 23 days of PTO (accrued), separate sick leave, and paid company holidays.
401(k) retirement plan with a 4% employer match.
Equity included–we believe builders should share in what they build.
Free daily catered lunch, snacks, and drinks in‑office.
Collaboration with top‑tier engineers, researchers, and product experts in AI and robotics.
Freedom to influence the product and own key initiatives.
For this role in Massachusetts, the target base salary range is $200K–$300K USD per year; your placement in that range depends on how your experience maps to our internal leveling.