Principal Tools Engineer, Simulation

The role

You will build the next generation of simulation tooling to power robotics development. This involves improving the simulator, developer workflows, and content pipelines to enable rapid environment creation and robot behavior validation.

What you will do

• Design and build scalable tooling for simulation environments.
• Improve end-to-end simulation content pipelines.
• Integrate simulators into automated testing frameworks and CI/CD pipelines.
• Build internal tools to improve developer productivity and engineering velocity.
• Establish scalable platform architecture and engineering best practices.

Required qualifications

• 6+ years of professional experience (Senior) or 10+ years (Staff) developing game engine tooling, simulation platforms, developer tools, or large-scale content pipelines.
• Bachelor's degree in Computer Science, Software Engineering, Game Development, or a related technical field.
• Strong proficiency in C++, C#, Python, or similar programming languages.
• Experience developing tools within Unreal Engine, Unity, proprietary game engines, or large-scale simulation environments.
• Experience building CI/CD pipelines, automated testing frameworks, or deployment systems for engineering workflows.

Nice to have

• Experience building simulation platforms for robotics, autonomous systems, gaming, or digital twins.
• Experience developing end-to-end asset and content management pipelines, including import, validation, versioning, packaging, and deployment.
• Background as a Technical Artist, Tools Engineer, Build Engineer, or Engine Programmer with strong software engineering fundamentals.
• Familiarity with source control systems, build automation, cloud infrastructure, and continuous integration technologies.
• Experience developing tools for large multidisciplinary teams, including engineers, artists, designers, researchers, or simulation developers.
• Familiarity with ROS/ROS2, robotics simulation platforms (Isaac Sim, Gazebo, MuJoCo), or physics engines.

Benefits

• Comprehensive medical, dental, and vision coverage
• Generous paid time off, company holidays, and parental leave
• 401(k) plan with company match (100% on the first 3% of contributions, 50% on the next 2%)
• Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
• Commuter benefits (transit and parking)
• Short-term and long-term disability, and life insurance
• Employee Assistance Program (EAP) for mental health, financial, and personal support
• Onsite snacks and catered lunches

About the company

1X builds humanoid robots designed to work in homes. They solve robotics, AI, and manufacturing to create robots like NEO that operate in the real world.