Jobs in the United States

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Added 19 mins ago
JH
Modeling & Simulation Engineer
Johns Hopkins Applied Physics Laboratory
Laurel, MD
- $100,000 USD / year
As a Modeling and Simulation Engineer, every day will bring exciting new challenges, including:
Added 37 mins ago
SA
Senior Staff Systems Security Engineer, Program Protection (TX/DC/Sea) (R6515)
Shield AI
United States
- $175,000 to $315,000 USD / year
…intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities…
Added 1 hour ago
Senior Systems Engineer - MANTA SEIT (Onsite)
RTX
United States
Join our MANTA SEIT Department as a Senior Systems Engineer, where you will play a critical role in supporting the development, integration, and validation of resilient navigation systems.…
Added 1 hour ago
Sr Systems Engineer
Rite-Hite Doors, Inc.
Dubuque Headquarters, IA · Milwaukee, WI
Perform analytical modeling using calculations or simulation tools like MATLAB or Spice.
Added 1 hour ago
Senior Systems Engineer-Development
BAE Systems
Nashua, NH
…(analysis/decomposition/derivation/allocation of requirements, system modeling & simulation, system design & development, system integration &…
Added 1 hour ago
Sr. Engineering and Requirements Technical Advisor
The Aerospace Corporation
Colorado Springs, CO · El Segundo, CA
Provide technical leadership and coordination for modeling and simulation (M&S) efforts supporting BMC3I systems and architectures across the SYD85 portfolio of space-based and ground-based…
Added 1 hour ago
Autonomous Trajectory & Mission Planning Engineer
The Aerospace Corporation
Colorado Springs, CO · El Segundo, CA · Chantilly, VA · Albuquerque, NM
…analysis and design, advanced astrodynamics, algorithm design, software development, mathematical modeling, multi-objective optimization, decision making under uncertainty, and/or…
Added 1 hour ago
Systems Engineer II
Sierra Nevada Corporation
Lone Tree, CO
…and sustain our way of living. Join our team! As a Systems Engineer II, you will build upon foundational skills and perform intermediate tasks in requirements engineering, systems…
Added 1 hour ago
Systems Engineer - Design & Development - Hybrid
General Dynamics Mission Systems, Inc
Remote, United States
Support and lead Modeling and Simulation activities aligned with program objectives
Added 1 hour ago
Electrical Design and Analysis Engineer
nLogic
Huntsville, AL
nLogic is seeking a Mid-Career Electrical Design and Analysis Engineer to support the design, development, analysis, integration, and testing of electrical and electronic systems. The…
Added 2 hours ago
Senior Security Engineer - Aerospace
Muon Space
San Jose, CA
Muon seeks a Senior Security Engineer to join our Security Engineering & IT team. The ideal candidate brings deep expertise across multiple security domains and can operate independently to…
Added 2 hours ago
RU
Electrical Engineer
Randstad USA
Florence, SC
- $43 to $47.79 USD / hour
AutoCAD,ECAD,embedded software,control applications,PSpice,system analysis,systems analysis,Zuken,analytical,written and verbal communications skills,logical reasoning,Good interpersonal…
Added 2 hours ago
Systems Engineer
BAE Systems
Cedar Rapids, IA
…(analysis/decomposition/derivation/allocation of requirements, architecture, system modeling & simulation, system design & development, system integration & test, production,…
Added 2 hours ago
Electrical Engineer (Senior/Staff), CD&H
True Anomaly
Denver, CO · Long Beach, CA
True Anomaly is seeking an experienced Electrical Engineer to design and develop electrical system architectures for our next-generation space vehicles. You will be responsible for defining…
Added 2 hours ago
Industrial Engineer III
Jabil Inc.
Memphis, TN
As an Industrial Engineer III, you will lead initiatives that improve productivity, reduce waste, optimize production processes, and increase operational efficiency. You will leverage…
Added 2 hours ago
Manufacturing Systems and Simulation MP&P Engineer
The Boeing Company
North Charleston, SC
Advanced Production and Automation is seeking a Manufacturing Systems and Simulation MP&P Engineer – Modeling & Simulation (Mid-Level or Lead) for the Production System Modeling, Simulation…
Added 3 hours ago
ED
Senior Staff RF Engineer
EPIQ DESIGN SOLUTIONS, LLC.
Frederick, MD
- $125,000 to $175,000 USD / year
Lead the RF/Microwave circuit and sub-system design, component analysis, modeling, simulation, prototyping and integration.
Added 3 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 4 hours ago
TI
Control System Engineer
Trimble Inc.
Westminster, CO
- $122,500 to $168,400 USD / year
Advanced MBD & Simulation:Experience with Systems Identification, Simscape, Simulink auto-code generation, and Hardware-in-the-Loop (HIL) / Software-in-the-Loop (SIL) testing.
Added 4 hours ago
Avionics Integration Engineer
Odyssey Systems Consulting Group, Ltd.
Dayton, OH
Odyssey has an exciting opportunity for a Journeyman Avionics Integration Engineer supporting the Fixed Wing Modification Branch AFLCMC/WIU at Wright Patterson AFB, OH. This program focuses…
Added 5 hours ago
Senior Systems Engineer - CT
GE Medical Systems, L.L.C.
United States
The Senior Architect Systems Engineer has the responsibility to design and develop photon counting CT products delivering customer workflow, feature functionality, product quality,…
Added 5 hours ago
Systems Engineer - CT
GE Medical Systems, L.L.C.
United States
The Systems Engineer has the responsibility to design and develop photon counting CT products delivering customer workflow, feature functionality, product quality, reliability,…
Added 5 hours ago
A
Senior Advanced Systems Engineer
Aerospace
Minneapolis, MN
- $120,000 to $150,000 USD / year
Proficiency with system modeling, simulation tools, and hardware-software integration techniques.
Added 5 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…
Added 5 hours ago
Electric Propulsion Systems Engineer II (Onsite)
RTX
United States
…EPSE engineers support the concept design definition, system integration, prototype testing and product detail design development, certification and validation, both for systems and…

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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