Principal Architect – Simulation Engine (Physical AI)

Location: Full-time onsite at the Irving, Texas office in the Dallas area. Domestic relocation assistance is available, and visa sponsorship is available.

Salary: $159,120–$258,570 per year.

Company

hirify.global develops connected machines, digital platforms, autonomy, and AI systems for construction and mining applications.

What you will do

• Define the technical vision, architecture, and roadmap for the simulation platform supporting Physical AI and autonomous construction and mining machines.
• Design core abstractions for OpenUSD assets, physics, rendering, sensors, scenarios, deterministic execution, replay, and SIL/HIL workflows.
• Build simulation capabilities for deformable terrain, machine dynamics, cameras, LiDAR, radar, GNSS, and inertial sensors in challenging environmental conditions.
• Establish measurable standards for fidelity, determinism, performance, and developer experience.
• Lead sim-to-real correlation using field data and collaborate with simulation, digital twin, AI, autonomy, perception, controls, and machine engineering teams.
• Guide GPU-cluster and cloud-scale execution for millions of scenario runs per day.

Requirements

• Typically 8+ years of software engineering experience with ownership of production simulation platforms for autonomous vehicles or robotics.
• Hands-on experience with NVIDIA Omniverse, Isaac Sim, OpenUSD, PhysX, RTX, Unreal Engine, or comparable simulation technologies.
• Expert modern C++ and strong Python skills; experience with gRPC, Protocol Buffers, Bazel or CMake, and CI/CD for large monorepos.
• Experience with high-fidelity physics, sensor simulation, outdoor terrain, procedural scenarios, reinforcement learning, and closed-loop training.
• Experience scaling simulation on GPU clusters or cloud environments using technologies such as Kubernetes, Slurm, Ray, or CUDA.
• Bachelor’s, master’s, or doctoral degree in Computer Science, Robotics, Mechanical Engineering, Physics, or a related field, or equivalent experience.

Nice to have

• Experience with Applied Intuition, CARLA, Isaac Lab, MuJoCo, Project Chrono, Rust, CUDA, 3D Gaussian Splatting, or NeRF.
• Familiarity with ASAM OpenSCENARIO, SOTIF, ISO 26262, NVIDIA Cosmos, or world foundation models.
• Background in off-highway, mining, construction autonomy, autonomous vehicles, or robotics simulation.

Culture & Benefits

• Medical, dental, and vision benefits.
• Paid vacation, holidays, and volunteer time.
• 401(k), HSA, FSA, disability, life insurance, and parental and adoption benefits.
• Career development, tuition reimbursement, employee assistance, lifestyle programs, and employee discounts.
• Incentive bonus opportunities.