Senior Simulation Software Engineer

General Motors•Austin, TX

1d•Hybrid

About The Position

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.

Requirements

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

Nice To Haves

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

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