Humanoid
Senior Low-level Control Engineer - End-Effectors
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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 Alpha - our rapidly developed humanoid platform now running in real industrial pilots - and we’re growing the team to take it even further.
About the Role
We are looking for a Senior Low-level Control Engineer to join our Control Team in London, focusing on control development and integration for our end-effectors.
You will design, implement and validate actuator- and joint-level controllers and grasp-level behaviours across a family of end-effector variants - parallel and multi-finger grippers, vacuum and suction tooling, and purpose-built tooling for specific customer tasks. Each variant brings different actuation, different sensing and, critically, different transmission mechanisms: geared direct drives, cable- and tendon-driven routings, differential and coupled linkages, and underactuated designs where few actuators must produce adaptive, compliant grasping across many degrees of freedom.
The ideal candidate has a solid background in control theory, strong software engineering skills in C++, and comfort working from real-time embedded control up through kinematics/dynamics and hardware debugging. You will work closely with mechanical and hardware engineers - early enough in the design cycle that your input shapes actuation and transmission choices rather than merely inheriting them.
What You'll Do
Low-Level Control Development:
- Tune and validate actuator- and joint-space control loops (PID, feedforward, impedance/admittance, observers, state feedback) for multi-DoF end-effectors in ROS2.
- Develop grasp-level behaviours: grasp force control, compliant closing, slip detection and correction, and adaptive grasping on underactuated grippers.
- Implement safety and fault-handling mechanisms — thermal and over-current protection, stall and jam detection, grip-loss detection, safe behaviour on fault.
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Transmission Mechanisms, Modeling & System Identification:
- Build and identify models of actuators, transmissions and mechanisms - geared, cable/tendon-driven, differential, coupled and underactuated - including compliance, friction, backlash, hysteresis, cable stretch and pretension effects.
- Own the joint-to-actuator abstraction for these mechanisms and the correct exposure of joint versus actuator state through the control stack.
- Contribute directly to transmission mechanism design: work with mechanical engineers on routing, reduction ratios, DoF coupling and underactuation strategy, bringing the controllability and observability consequences of each option into the conversation early.
Sensor & Hardware Integration:
- Integrate and calibrate end-effector sensing (F/T, tactile, encoders, temperature/current, vacuum feedback) with real-time acquisition across the control stack.
- Hands-on bring-up and debugging of new end-effectors, including test-stand work and vendor-supplied units.
Cross-Disciplinary Collaboration:
- Close the loop with mechanical/electronics engineers across sites on actuation, transmission and sensing requirements.
- Work with data collection, applications and deployment teams so end-effectors work reliably in real use.
What We're Looking For
- Shipped real-time-safe, object-oriented C++ control software running on real hardware.
- Tuned and validated controllers on physical actuators, including sensor calibration and bring-up.
- Modelled, identified and controlled through real mechanical transmissions - gearing, cables/tendons, differentials, coupled linkages or underactuated mechanisms - and dealt with the compliance, friction and backlash they introduce.
- Worked on end-effectors or comparable multi-DoF mechanisms, including grasp control and supporting sensing.
- Debugged at the fieldbus and OS layer: e.g. EtherCAT or CAN, on an RTOS or real-time Linux.
- Strong control theory foundation (linear/nonlinear control, stability, observers, state estimation, feedback/feedforward, filtering, frequency-domain analysis) applied to multi-DoF mechanisms via Jacobians, numerical IK/FK, and URDF/Xacro.
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Nice to have:
- BLDC motor control (commutation, current control, torque optimization).
- ros2_control internals (hardware interfaces, controllers, controller_manager, plugins, lifecycle nodes).
- Tendon- or cable-driven mechanisms specifically, including pretension management, routing friction and wear behaviour.
- Tactile sensing integration; vacuum and suction tooling, including multi-cup arrays and grip-loss handling.
- System identification toolchains and simulation environments (MATLAB/Simulink, MuJoCo, Isaac Sim).
What We Offer
- Competitive equity: stock options with meaningful upside as we scale.
- 30+ paid days off, including 23 days of annual leave, all UK bank holidays, and additional company closure days (including Christmas–New Year shutdown).
- Private healthcare, including virtual and in-person care.
- Pension scheme with 8% total contribution (5% employee, 3% employer) on full earnings.
- Free daily breakfast, catered lunch, and snacks in-office.
- Work at the frontier - collaborate daily with world-class engineers, researchers, and product experts building the next generation of AI and humanoid robotics.
- Real ownership - direct access to founding leadership, meaningful input on product direction, and the ability to drive key initiatives from day one.
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