Jobs in the United States

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Added 2 hours ago
Electrical Engineer 3
Lam Research
Tualatin
Perform hands-on test and validation utilizing lab equipment to characterization of the performance of the electrical/ electro-mechanical systems.
Added 3 hours ago
SE
Lead Power Electronics Engineer - Solid-State Circuit Breakers
Schweitzer Engineering Laboratories, Inc.
WA
- $107,600 to $161,500 USD / year
Plan and execute laboratory testing, prototype development, characterization, and validation activities.
Added 4 hours ago
EE
Engineering Technician
Express Employment Professionals
Broadview, IL
- $25 to $35 USD / hour
Conduct advanced lithium-ion battery testing, including cycle aging, calendar aging, battery characterization, and electrical performance evaluations.
Added 4 hours ago
Structural Analysis Engineer II
Rocket Lab Corporation
Long Beach, CA
Based out of Rocket Lab's global headquarters in Long Beach, CA, the Spacecraft Structural Analysis Engineer II contributes to the analysis, design validation, and future improvements of…
Added 4 hours ago
New College Grad: Engineer, Edge Systems Architecture
Micron Technology, Inc.
Boise, ID
Support engineering reporting and technical insight generation through result analysis, validation, documentation, and consistent, traceable workload data.
Added 4 hours ago
FE
Test Engineer II
Form Energy, Inc
Berkeley, CA
- $97,221 to $121,518 USD / year
Form Energy is hiring a Test Engineer II to join our Test Engineering team. In this position, you will design, develop, and implement test strategies and prioritizing tests, in partnership…
Added 4 hours ago
Senior Development Engineer - ICD
Anduril Industries
Costa Mesa, CA
…vibration, shock, HALT, TVAC), battery testing (cell/module/pack characterization, abuse testing, BMS validation), propulsion testing (engine test cells, thrust/torque measurement,…
Added 4 hours ago
Waste/Shipping Engineer (4033)
Navarro Inc.
Niskayuna, NY
The Waste/Shipping Engineer of Regulated Materials will encompass the duties of validation of waste characterization of material generated during work taking place at the laboratory across…
Added 5 hours ago
Senior Engineer II, Systems Engineering
ASM
United States
Experience designing and executing experiments for sensor characterization and validation.
Added 6 hours ago
Quantum Characterization, Verification, and Validation Engineer
PsiQuantum
Milpitas, CA
PsiQuantum is seeking a researcher to develop methods for quantum characterization, verification, and validation (QCVV) of large-scale quantum systems. The successful candidate will work on…
Added 6 hours ago
Manager, Passive Components
PsiQuantum
Palo Alto, CA
We are looking for an energetic, highly motivated Photonics Engineer who will be responsible for the design, optimization, integration, and validation of novel photonic structures, devices,…
Added 6 hours ago
Waste/Shipping Engineer (4033)
Navarro Inc.
Niskayuna, NY
The Waste/Shipping Engineer of Regulated Materials will encompass the duties of validation of waste characterization of material generated during work taking place at the laboratory across…
Added 6 hours ago
Electrical Processor Validation Engineer
Experis USA
San Jose, CA
Our client, a highly technical engineering organization, is seeking an Electrical Processor Validation Engineer to join their team. As an Electrical Processor Validation Engineer, you will…
Added 6 hours ago
Photonic Design Engineer
PsiQuantum
Remote, United States
This position is for a Photonic Design Engineer within the Circuit Team. This role is intended to expand the team’s design, validation, and data analysis capabilities in support of the…
Added 7 hours ago
Sr. Engineer II –Device/Test (Parametric/Etest)
Microchip - USA
CO
…7.5+ years of relevant experience in semiconductor devices, characterization, validation and test, test development, data analysis, reliability, troubleshooting, or a closely related…
Added 8 hours ago
IC Test Engineer
Keysight Technologies, Inc.
Santa Rosa, CA
…market trends that address unmet needs. As a Senior IC Test Engineer, you will be joining a dedicated team of visionaries to innovate and deliver the next generation of high frequency,…
Added 8 hours ago
Software Engineer - Humanoid Sim-to-Real
Apptronik
Austin, TX
…help solve the ever-increasing labor shortage. As a Controls Engineer – Actuation on our Controls team, you will own both the actuator models that make our simulation trustworthy and the…
Added 8 hours ago
Mechanical Engineer 3
Onto Innovation Inc-US
United States
Participate in prototype builds, system level characterization, validation, and compliance test work
Added 8 hours ago
Principal Reactor Fuel Engineer
System One
Oak Ridge, TN
Establish uncertainty budgets covering characterization, irradiation conditions, PIE measurements, material properties, safety testing, and derived qualification parameters.
Added 9 hours ago
Mechanical Engineer
Harton
Cambridge, MA
Harton is seeking a highly motivated Mechanical Engineer with 4-7 years experience in mechanical design to contribute to the development of our novel bioprocessing platform. In this role,…
Added 9 hours ago
TT
RADIAC Test Engineer (TOC)
Torch Technologies, Inc.
Remote, United States
- $65 to $75 USD / hour
Torch Technologies Inc., is seeking a Temporary On-Call (TOC) RADIAC Test Engineer to support U.S. Army Radiation Detection, Indication, and Computation (RADIAC) systems. The ideal…
Added 9 hours ago
Specialist, Test Engineer
L3Harris Technologies
San Diego, CA
We are seeking an experienced Test Engineer to support the design verification, characterization, and integration of automated RF test systems and subsystems (ATS). The ideal candidate will…
Added 9 hours ago
Staff Engineer - Applications Software
Ambiq Micro, Inc.
Austin, TX
As the Staff Applications Software Engineer, Power at Ambiq, you will work with Architecture, Design, Validation, Sales, Software Engineering, and field teams to demonstrate the low-power…
Added 9 hours ago
Staff NPI Test Engineer
Wolfspeed, Inc.
Durham, NC
As a Test Engineer, you will design, develop, and implement cost-effective test methods and equipment for all phases of new product development and manufacturing. Create test programs,…
Added 10 hours ago
Senior RF Radar Engineer I
Rocket Lab Corporation
Long Beach, CA
Based at Rocket Lab's global headquarters in Long Beach, CA, we are looking for a Senior RF Engineer II - Radar/RF who will be responsible for the technical development of radar and RF…

Apptronik

Software Engineer - Humanoid Sim-to-Real

Austin, TX, United States

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Job details

Posting language: English
Posted: Nov 3, 2026

Original job description

Apptronik is a human-centered robotics company developing AI-powered robots to support humanity in every facet of life. Our flagship humanoid robot, Apollo, is built to collaborate thoughtfully with people, starting with critical industries such as manufacturing and logistics, with future applications in healthcare, the home, and beyond.

We operate at the cutting edge of Applied AI, applying our expertise across the full robotics stack to solve some of society's most important problems. You will join a team dedicated to bringing Apollo to market at scale, tackling the complex challenges like safety, commercialization, and mass production to change the world for the better.

JOB SUMMARY

Apptronik is building robots for the real world - to improve human quality of life and help solve the ever-increasing labor shortage. As a Controls Engineer – Actuation on our Controls team, you will own both the actuator models that make our simulation trustworthy and the actuator-level control that runs on real hardware - closing the loop from bench characterization and system identification, through simulator integration, to controller design, tuning, and deployment. You will pair deep motor electromechanics and system-identification skill with strong C++/Python engineering, working hand in hand with our Controls, Firmware, and Simulation teams so that both model fidelity and control performance are driven by how they are actually used on the robot.

ESSENTIAL DUTIES AND RESPONSIBILITIES or KEY ACCOUNTABILITIES

Develop and maintain high-fidelity actuator models in simulation, capturing the physical behaviors (friction, compliance, thermal, torque and current limits) that meaningfully affect real-world performance.
Design, tune, and deploy actuator-level control - closed-loop torque and current control and the low-level control that turns commands into reliable joint behavior on hardware.
Design and run hardware test campaigns to characterize actuator behavior and extract the parameters that keep both the models and the controllers accurate.
Apply system identification to extract trustworthy physical models from experimental data, and use those models to inform controller design and gain selection.
Quantitatively validate sim-to-real fidelity - for both the models and the controllers - using appropriate comparison metrics, and understand the limitations of each.
Build and maintain robust Python/C++ tooling for experiment automation, model extraction, controller tuning, and simulator integration.
Partner with the Controls team throughout - aligning on the fidelity and control performance actually needed, how model and controller choices ripple into training and policy performance, and where the actuator layer is the root cause of a sim-to-real gap.
Support hardware bring-up and deployment, translating validated models and controllers into real robot configuration.

SKILLS AND REQUIREMENTS

Strong C++, including comfort extending a simulator or physics-engine codebase - not just consuming one through a Python interface.
Deep grounding in motor electromechanics and classical control - closed-loop torque/current control, controller design and tuning, and frequency-domain analysis (e.g. Bode plots, stability margins).
Hands-on actuator or servo control on real hardware: designing, tuning, and validating low-level controllers, informed by system identification.
Hands-on system identification and modeling: structured experiment design and model fitting from real data that feeds both simulation and control.
Proficiency in Python (test automation, data analysis, tooling) and a track record shipping maintainable code under Git in a fast-moving R&D environment.
Comfortable working cross-functionally with controls engineers - focused on how your models and controllers get used, not just whether they fit the data.
Preferred: experience with dynamometers, motor test stands, and lab instrumentation; motor thermal modeling and gearbox efficiency / backlash characterization; real-time actuator communication protocols and embedded / firmware control; a modern robotics simulator (MuJoCo, Isaac Sim/Lab, Brax) and sim-to-real validation workflows; and Docker with GPU/cloud experiment infrastructure.

EDUCATION and/or EXPERIENCE

BS in Robotics, ME, EE, CS, or a related field + 4 years of relevant experience; MS in a related field + 2 years of relevant experience; or a PhD in a related field.
Prior humanoid or legged-robot experience is strongly preferred.

PHYSICAL REQUIREMENTS:

Prolonged periods of sitting at a desk and working on a computer
Must be able to lift 15 pounds at times
Vision to read printed materials and a computer screen
Hearing and speech to communicate

*This is a direct hire. Please, no outside Agency solicitations.

Apptronik provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

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