Lead Simulation Engineer (Digital Twin)

TL;DR

Lead Simulation Engineer (Digital Twin): Designing, developing, and integrating simulation and visualization capabilities for hirify.global's next-generation digital twin, machine behavior modeling, and interactive 3D experiences with an accent on simulation engineering, real-time visualization, and 3D scene-building using NVIDIA Omniverse and modern C++/Python toolchains. Focus on building behavioral logic, physics integrations, and visualization layers for accurate, high-performance representations of hirify.global machines, job sites, and workflows.

Location: Must work full-time at the Irving, TX office (Dallas)

Salary: $128,470.00 - $208,770.00

Company

hirify.global is a global team who cares not just about the work we do – but also about each other creating stronger, more sustainable communities.

What you will do

• Develop and deploy simulation logic and behavioral models governing machine and system behavior, including real-time simulation algorithms and physics engines.
• Develop and execute model validation and verification plans, ensuring digital twins are accurate and numerically stable.
• Create high-fidelity 3D models, scenes, and environments using NVIDIA Omniverse, and develop interfaces connecting simulations to real-time visualization and dashboards.
• Contribute to toolchain and pipeline design, including scripting utilities, automated test frameworks, and modular code libraries.
• Evaluate and implement new simulation libraries and real-time rendering technologies to enhance simulation fidelity and performance.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Mechanical Engineering, Robotics, or a related field or equivalent experience.
• 5+ years of experience developing digital twins or simulation-based systems in relevant industries.
• Strong expertise in system-level simulation and digital twin technologies, including multi-physics modeling and machine learning-based simulation.
• Experience with NVIDIA Omniverse, including USD workflows, Omniverse Kit/Code, and PhysX.
• Strong hands-on programming skills in C++ and Python for simulation logic, behavior modeling, and tooling.
• This position requires the candidate to work full-time at the Irving, TX office (Dallas)
• Visa sponsorship is not available with this position.

Nice to have

• Knowledge of other digital-twin and real-time simulation tools, such as Unity, Unreal Engine, Siemens NX/Teamcenter/Plant Simulation, Dassault 3DEXPERIENCE, Ansys Twin Builder, Rockwell Emulate3D, or similar industrial platforms.
• Familiarity with physics engines (PhysX, Omniverse Physics, Bullet, ODE, or equivalent) and experience integrating them into simulation environments.
• Experience validating simulation models and digital twins using test data correlation, scenario-based testing, regression testing, and telematics/real-world data.
• Experience modeling mechanical systems, hydraulics, heavy equipment, or robotics.
• Knowledge of 3D scene construction, rendering concepts, and UI development for real-time visualization.

Culture & Benefits

• Medical, dental, and vision benefits.
• Paid time off plan (Vacation, Holidays, Volunteer, etc.).
• 401(k) savings plans.
• Health Savings Account (HSA).
• Flexible Spending Accounts (FSAs).
• Incentive bonus.