Lead High-Fidelity PhysX Simulation Engineer

Grid Dynamics; Wrocław; On-site; PLN 320,000 - 420,000; Full time

Benefits offered by this job

Medical insurance

Sports

Flexible schedule

Corporate social events

Professional development opportunities

Well-equipped office

Job summary

Grid Dynamics seeks a Principal Physics Simulation Engineer to join a greenfield simulation platform built on NVIDIA technologies. You will own physical-behavior fidelity, model machines and terrain in PhysX, and validate simulation against real data while setting fidelity standards for autonomy and robotics applications.

You will lead the physics modeling team, drive trade-offs between fidelity and performance, and collaborate with client teams to ensure the simulator earns trust for autonomous

Qualifications

• Principal-level expertise in physics-based, high-fidelity simulation.
• NVIDIA PhysX knowledge: rigid-body dynamics, articulations, joints, contacts, friction, and solver tuning.
• Vehicle and machine dynamics: mass, inertia, traction, terrain interaction, actuator modeling.
• Simulation validation: correlating simulated behavior with real data and defining fidelity metrics.
• Programming in Python and C++.

Responsibilities

• Physics Fidelity Ownership: Own physical-behavior fidelity across a greenfield simulation platform built on the full NVIDIA simulation stack.
• Machine & Terrain Modeling: Model machines, actuators and their interaction with terrain and objects in PhysX-based simulation, from rigid-body dynamics and articulations to contacts, friction and solver tuning.
• Simulation Validation: Define and run validation that compares simulated behavior with real machine data, and close the gaps you find.
• Fidelity Standards: Set fidelity metrics and acceptance thresholds that autonomy, robotics and synthetic-data work can rely on.
• Technical Leadership: Guide engineers on physics modeling and on trade-offs between fidelity and performance.

Skills

Physics-based simulation

Python

C++

Autonomy/Robotics simulation

Technical leadership

Tools

NVIDIA PhysX

NVIDIA Isaac Sim

Job description

Grid Dynamics seeks a Principal Physics Simulation Engineer to join a greenfield simulation platform built on NVIDIA technologies. You will own physical-behavior fidelity, model machines and terrain in PhysX, and validate simulation against real data while setting fidelity standards for autonomy and robotics applications.

You will lead the physics modeling team, drive trade-offs between fidelity and performance, and collaborate with client teams to ensure the simulator earns trust for autonomous