Senior Simulation Software Engineer

Description
We are seeking a Senior Simulation Software Engineer for the Digital Twin team with deep expertise in at least one major simulation environment (Unity, Unreal Engine, or NVIDIA Isaac Sim) and a willingness to learn others. In this role, you will design, build, and scale core software services and high-performance 3D simulation environments, program NPC behaviors, and support automation workflows for autonomous robotics development. You will combine 3D programming with strong platform engineering to deliver reliable, low-latency simulations at enterprise scale.
What You'll Do (Key Responsibilities)

• Develop and maintain simulation environments using Unity, Unreal Engine, or NVIDIA Isaac Sim
• Implement NPC programming and behavior logic to enable realistic interactions
• Own end-to-end features: requirements, architecture, implementation, testing, deployment, and observability
• Build high-performance 3D simulation modules (rendering, physics, spatial indexing) for scalable, real-time execution and integrate them with platform services
• Develop asset pipelines and tooling for ingesting, transforming, and optimizing complex 3D assets (e.g., 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, tools, and best practices to enable cross-team adoption

Your Skills & Abilities (Required Qualifications)

• Bachelor's or Master's degree in Computer Science, Game Development, Robotics, or a related field
• 5+ years of software engineering experience, including 3D simulation development or game engine programming
• Expertise in at least one of: Unity3D, Unreal Engine, or NVIDIA Isaac Sim, with a willingness to learn others
• Proven experience productizing 3D software systems (e.g., rendering pipelines, physics, simulations, or digital twins)
• Strong skills in NPC programming and behavior scripting
• Proficiency in C#, C++, or Python, with strong foundations in computer graphics and linear algebra
• Solid CI/CD, version control (Git), and agile development practices

What Can Give You a Competitive Edge (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 (e.g., RenderDoc, PIX, Nsight)
• Experience in manufacturing, automotive, or industrial domains
• Knowledge of cybersecurity best practices for connected systems

This role is categorized as hybrid. This means the selected candidate is expected to report to a specific location at least 3 times a week {or other frequency dictated by their manager}.
The selected candidate will be required to travel <25% for this role.
This job may be eligible for relocation benefits.
About GM
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Why Join Us
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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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