Senior Simulation Software Engineer

Job Description

About the Team

The Autonomous Robotics Center develops cutting-edge simulation environments to accelerate autonomous system innovation. Our team leverages advanced platforms like Unity, Unreal Engine, and Nvidia Omniverse / Isaac Sim to create realistic, scalable virtual worlds for testing and validation of Robotic and manufacturing plants across the company.

Role Overview

We are seeking a S enior Simulatio n Software Engineer on the Digital Twin team with expertise in at least one major simulation environment (Unity, Unreal Engine, or Nvi dia Isaac Sim) and a willingness to learn others. This role focuses on designing, building and scaling core software services and high-performance 3D immersive simulation environments, programming NPC behaviors, and supporting automation workflows for autonomous robotics development. The role will combine 3D/real-time programming with strong software platform engineering to deliver reliable, low-latency simulations at en terprise scale.

Key Responsibilities

• Develop and maintain simulation environments using Unity, Unreal Engine, or Nvidia Isaac Sim.

• Implement NPC programming and behavior logic for realistic interactions.

• Own end-to-end features: requirements, architecture, implementation, testing, deployment and ob servability for core capabilities.

• Build high-performance 3D simulation modules for scalability and real-time execution (rendering, physics, spatial indexing ) and integrate them with platform services.

• Develop asset pipelines and tooling for ingesting, transforming, and optimizing complex 3D assets (USD/GLTF) and scene graphs for real-time use.

• Collaborate with robotics engineers and software developers to integrate simulation with automation pipelines.

• Contribute hands-on to coding and code reviews, promoting clean code practices and secure development standards.

• Troubleshoot and resolve technical issues in simulation frameworks.

• Document workflows and best practices for cross-team adoption.

Required Qualifications

• Bachelor's or Master's degree in Computer Science , Game Development, Robotics, or related field .

• 5+ years of experience in software engineering including 3D simulation development or game engine programming.

• Expertise in one of the following: Unity 3D , Unreal Engine, or Isaac Sim, with willingness to learn others.

• Proven experience productizing 3D software systems: rendering pipelines, physics, simulations, or digital twins.

• Strong skills in NPC programming and behavior scripting.

• Proficiency in C#, C++, or Python , with strong computer graphics and linear algebra foundations

• Solid CI/CD, version control (Git ) and agile development practices.

Preferred Qualifications

• Experience with robotics simulation and autonomous systems.

• Knowledge of physics-based simulation and AI-driven behaviors.

• GPU/compute expertise (HLSL/GLSL/Compute Shaders), materials/shaders, and graphics debugging tools ( RenderDoc , PIX, Nsight).

• Experience with manufactu ring, automotive or industrial domains

• Knowledge of cybersecurity best practices for connected systems

Key Competencies

• Can-do attitude, c reative problem- solving and technical innovation.

• Strong collaboration and communication skills .

• Ability to adapt to evolving technologies and tools.

About GM

Our vision is a world with Zero Crashes, Zero Emissions and Zero Congestion and we embrace the responsibility to lead the change that will make our world better, safer and more equitable for all.

Why Join Us

We believe we all must make a choice every day - individually and collectively - to drive meaningful change through our words, our deeds and our culture. Every day, we want every employee to feel they belong to one General Motors team.

Benefits Overview

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Non-Discrimination and Equal Employment Opportunities (U.S.)

General Motors is committed to being a workplace that is not only free of unlawful discrimination, but one that genuinely fosters inclusion and belonging. We strongly believe that providing an inclusive workplace creates an environment in which our employees can thrive and develop better products for our customers.

All employment decisions are made on a non-discriminatory basis without regard to sex, race, color, national origin, citizenship status, religion, age, disability, pregnancy or maternity status, sexual orientation, gender identity, status as a veteran or protected veteran, or any other similarly protected status in accordance with federal, state and local laws.

We encourage interested candidates to review the key responsibilities and qualifications for each role and apply for any positions that match their skills and capabilities. Applicants in the recruitment process may be required, where applicable, to successfully complete a role-related assessment(s) and/or a pre-employment screening prior to beginning employment. To learn more, visit How we Hire .

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