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Simulation Engineer

San Francisco, California

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in aerospace, medical devices, robotics, automotive, commercial vehicles, EVs, rail, and more.

As part of the global ALTEN Group—57,000+ engineers in 30 countries—we deliver across the entire product development cycle, from consulting to full project outsourcing.

When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits. We take pride in fostering a culture where employees feel valued, supported, and inspired to grow.

We are seeking a Simulation Engineer to join our AI robotics research team developing foundation models for robotics. You will rapidly develop 3D physics-based simulation frameworks and tools alongside scientists to enable training large-scale machine learning models.

 

Key job responsibilities

* Develop simulations for reinforcement learning, closed-loop simulations and synthetic data generation

* Implement essential robotics features, including accurate modeling of sensors, actuators, and controllers

* Build real-to-sim workflows for dynamic environments and robotics tasks

* Implement simulation features to minimize sim-to-real gaps through domain randomization and system identification

* Create asset toolchains supporting industry-standard formats (URDF, MJCF, USD)

* Collaborate closely with a team of ML researchers to enable large-scale robotics training pipelines

 

Basic Qualifications

- 5+ years of non-internship professional software development experience

- 3+ years of programming with at least one software programming language experience

- 3+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience

- Extensive experience in physics simulation, with a preference for expertise in rigid body simulation. Experience with Isaac Sim, Unity, Unreal or proprietary 3D game engine, or industry-equivalent technology (3D animation, simulation, etc). Understanding of 3D graphics and real-time rendering applications. Passion for your craft and demonstrated excellence in physics simulation engineering. Proficiency in Python and C++.

 

Preferred Qualifications

- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

- Bachelor's degree in computer science or equivalent

- Experience with physical robots, reinforcement learning, synthetic data generation. Experience optimizing physics simulation for articulated robots and rigid body interactions. Familiarity with modern ML frameworks like PyTorch. Familiarity with 3D formats (URDF, MJCF, USD). Familiarity with 3D content creation tools (e.g, Blender, Houdini). Experience implementing techniques from research papers.

 

Salary Range: $150,000-$170,000/K

The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job-related knowledge, qualifications, skills, education, training, and experience 

ALTEN Technology is an Equal Opportunity Employer. Our Policy is to extend opportunities to qualified applicants and employees on an equal basis regardless of an individual’s age, race, color, sex, religion, national origin, disability, sexual orientation, gender identity/expression or veteran status.

Please beware of job seeker scams and see this important notice on our careers page for more information about our recruiting process.

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Drug Screening Requirement: As a federal contractor, Alten USA maintains a drug-free workplace. All candidates selected for employment will be required to successfully complete a pre-employment drug screening as a condition of hire.

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