GPU/C++ Simulation Engineer

Simulation Engineer (GPU/C++ Expertise)

TXT Group is looking for a Simulation Engineer with GPU/C++ expertise to join the team of the Aerospace & Defence Business Unit.

The ideal candidate has a solid command of written, spoken and technical English, as well as the ability to work effectively in interdisciplinary teams (physics, software, radar). The role requires analytical thinking, precision, and a strong focus on experimental validation. The candidate should be able to document developed solutions clearly and systematically, and interact directly with the customer.

Main Responsibilities

• Development and optimization of the SAR/RCS radar simulation engine in a C++/CUDA environment with OptiX support and Embree fallback;
• Definition, implementation and verification of radar ray tracing functionalities (backscatter, polarization, materials, complex geometries);
• Integration of the simulation engine with a Python graphical interface and materials database;
• Validation of simulations through known benchmark datasets and comparison with physical models;
• Performance analysis and profiling on Windows and Linux platforms;
• Collaboration with radar and signal processing experts to ensure the physical and mathematical consistency of the model.

Preferred Skills

• Experience in software development using C++ and/or CUDA;
• Knowledge of GPU profiling and optimization techniques;
• Understanding of radar principles and fundamentals of Radar Cross Section (RCS) and Synthetic Aperture Radar (SAR);
• Experience (including academic) in numerical simulation or physical modeling.

Optional Skills

• Familiarity with ray tracing or physically based rendering libraries (NVIDIA OptiX, Intel Embree, OptiX Prime, CUDA RT);
• Understanding of electromagnetic propagation, reflection, and scattering principles;
• Knowledge of Eigen3, NumPy, or parallel computing libraries for GPU/CPU;
• Experience with Blender, Sionna RT, or electromagnetic simulation environments;
• Familiarity with SAR algorithms (Range-Doppler, Omega-K, Backprojection);
• Experience in GPU profiling and optimization tools (Nsight, PerfWorks, CUDA Graphs);
• Knowledge of software validation techniques and cross-platform development environments;
• Knowledge of the German language.

Education

• Master’s Degree in Computer, Telecommunications, Electronic, or Aerospace Engineering with a specialization in radar systems, remote sensing, or GPU programming;
• Master’s Degree in Physics or Computer Science with skills in electromagnetic waves and GPU-based computational modeling.

What We Offer

• Career opportunities in a fast-growing and evolving company with a young, international team;
• Training and professional development in areas related to the position;
• Corporate benefits (health insurance, welfare programs, meal vouchers, employee discounts as part of the group);
• Team building activities to foster collaboration and a positive work environment;
• Internship opportunities leading to potential permanent employment, depending on technical skills assessed during the interview.

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