QA Engineer: Nyx Renderer & Genesis World

Genesis Therapeutics
Paris, France
On-site

Who this role is best for

Aimed at mid-level QA engineers with expertise in 3D environments and GPU-accelerated systems, working in robotics and AI simulation.

Best fit for

  • QA engineers who balance automated testing with hands-on 3D scene validation.
    — “split your time evenly between hands-on exploratory testing and enhancing our automated test infrastructure
  • Professionals adept at debugging GPU-driven numerical accuracy issues.
    — “correctness goes beyond 'does it run': it's about visual fidelity, numerical accuracy, determinism, and reproducibility across hardware
  • Candidates with a strong grasp of rendering and physics simulation workflows.
    — “strong knowledge of 3D environments, assets, and rendering, who can reason about what 'visually and physically correct' actually means

Things to consider

  • Requires validation across multiple GPU configurations and CUDA versions.
    — “Validate numerical correctness, determinism, and reproducibility across GPUs, drivers, and CUDA versions
  • Must manage test infrastructure for cross-platform builds.
    — “Set up quality gates in CI for prebuilt wheels across platforms (Linux, Windows, Python 3.10–3.13)

How to stand out

  • Demonstrate experience with image-comparison tools for rendering validation.
    — “Develop image-comparison / perceptual-diff tooling to catch rendering regressions
  • Highlight past work on physics or scientific simulation testing.
    — “Familiarity with physics or scientific simulation
  • Showcase debugging skills with clear, reproducible bug reports.
    — “Excellent debugging instincts and clear, reproducible bug reports
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • maintain and evolve automated test suites
  • validate numerical correctness
  • perform exploratory testing
Typical background
5+ years software QA experience

Skills & requirements

Required

Software-qaAutomated-test-infrastructureExploratory-testing3d-rendering

Preferred

Gpu-programmingRay-tracingPhysics-simulation

Stack & domain

Software QaTest AutomationExploratory Testing3d EnvironmentsAssetsRenderingSimulationPhysicsPythonC++CommunicationTechnologyAI

About the role

Original posting from Genesis Therapeutics via Ashby

About Genesis AI

Genesis AI builds the simulation platform powering the next generation of robotics and embodied AI. Our flagship product, Genesis World, is a unified multi-physics simulation engine paired with Nyx, our in-house GPU-accelerated, path-traced photorealistic renderer. Together they provide a platform for training robotics and embodied AI at scale; letting teams simulate complex physical worlds with high fidelity and speed, from a laptop to datacenter-grade GPUs, and close the gap between simulation and the real world.

About the Role

We're hiring a Senior QA Engineer to own quality across Nyx and the Genesis World engines. You'll split your time evenly between hands-on exploratory testing and enhancing our automated test infrastructure. Because both systems run on GPUs and underpin robotics training and scientific workloads, correctness goes beyond "does it run": it's about visual fidelity, numerical accuracy, determinism, and reproducibility across hardware.

We're especially looking for someone with strong knowledge of 3D environments, assets, and rendering, who can reason about what "visually and physically correct" actually means.

What You'll Do

  • Maintain and evolve our automated test suites for the Nyx renderer and the Genesis World physics engine.
  • Develop image-comparison / perceptual-diff tooling to catch rendering regressions, and validation harnesses to catch simulation drift.
  • Validate numerical correctness, determinism, and reproducibility across GPUs, drivers, and CUDA versions.
  • Perform exploratory and manual testing on 3D scenes, assets, and complex multi-physics scenarios that are hard to automate.
  • Set up quality gates in CI for prebuilt wheels across platforms (Linux, Windows, Python 3.10–3.13).
  • Triage, reproduce, and clearly document defects; partner with engineers on root cause.

What We're Looking For

  • 5+ years in software QA, with strong experience in both test automation and exploratory testing.
  • Solid 3D environment and asset knowledge, with familiarity with rendering and simulation/physics.
  • Strong Python and C++ skills; comfortable reading performance-sensitive code.
  • Understanding of testing challenges in GPU and floating-point systems; non-determinism, tolerance-based assertions, hardware/driver variance.
  • Experience building test infrastructure in CI/CD and managing cross-platform builds.
  • Excellent debugging instincts and clear, reproducible bug reports.

Nice to Have

  • Experience with GPU programming, or ray/path tracing concepts.
  • Background in computer graphics (PBR, color management, perceptual image metrics).
  • Familiarity with physics or scientific simulation.
  • Robotics or sim-to-real experience.

Source: Genesis Therapeutics careers (Ashby)

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