Senior QA Engineer

Location: Paris, hybrid

Company

hirify.global builds Genesis World, a multi-physics simulation platform, and Nyx, a GPU-accelerated path-traced renderer for robotics and embodied AI training.

What you will do

• Maintain and evolve automated test suites for the Nyx renderer and Genesis World physics engine.
• Develop image-comparison and perceptual-diff tooling to detect rendering regressions.
• Build validation harnesses for simulation drift and verify numerical correctness, determinism, and reproducibility across GPUs, drivers, and CUDA versions.
• Perform exploratory and manual testing of 3D scenes, assets, and complex multi-physics scenarios.
• Set up CI quality gates for prebuilt wheels across Linux, Windows, and Python 3.10–3.13.
• Triage, reproduce, and document defects while partnering with engineers on root-cause analysis.

Requirements

• 5+ years of software QA experience combining test automation and exploratory testing.
• Strong knowledge of 3D environments, assets, rendering, and simulation or physics.
• Strong Python and C++ skills, including the ability to read performance-sensitive code.
• Understanding of GPU and floating-point testing challenges, including nondeterminism, tolerance-based assertions, and hardware or driver variance.
• Experience building CI/CD test infrastructure and managing cross-platform builds.
• Strong debugging skills and the ability to write clear, reproducible bug reports.

Nice to have

• GPU programming or ray-tracing and path-tracing experience.
• Computer graphics knowledge, including PBR, color management, and perceptual image metrics.
• Experience with physics or scientific simulation.
• Robotics or sim-to-real experience.

Culture & Benefits

• Work on simulation technology for robotics and embodied AI.
• Address quality challenges involving visual fidelity, physical correctness, numerical accuracy, and reproducibility.
• Collaborate closely with engineering teams on complex GPU-accelerated systems.