Software Engineer, Photoreal 3D (AI Video)

Location: Union Square, New York City, USA; most roles require in-person work at the NYC HQ.

Salary: $175K–$300K plus equity.

Company

hirify.global is an AI video company building creative tools, multimodal agents, generative video models, and Tesseract, a video-editing and rendering engine for AI agents.

What you will do

• Define the architecture for photorealistic 3D across ray tracing, rasterization, denoising, and Metal, Vulkan, Direct3D, and WebGPU.
• Build physically based light transport, materials, cameras, global illumination, reflections, refraction, volumetrics, and film-quality rendering.
• Own image quality, deterministic video-export frames, sampling, antialiasing, accumulation, denoising, and firefly suppression.
• Scale scenes with acceleration structures, instancing, culling, and memory management for millions of triangles and tens of thousands of objects.
• Integrate 3D with Tesseract's video, motion graphics, compositing, ACES color management, and render-pass pipelines.
• Design predictable rendering APIs for people and AI agents, profile local and cloud GPU workloads, and help build the 3D rendering team.

Requirements

• Deep production experience building physically based renderers, path tracers, offline renderers, or game engines with ray-traced or hybrid lighting.
• Strong command of light transport, including the rendering equation, Monte Carlo integration, importance sampling, material models, and denoising.
• Hands-on GPU ray-tracing experience with BVHs, hardware ray-tracing APIs such as Metal ray tracing, Vulkan ray tracing, or DXR, and compute-based fallbacks.
• Strong understanding of modern rasterization pipelines and hybrid rasterization/ray-tracing renderers.
• Hands-on experience with Metal, Vulkan, Direct3D, or WebGPU, including compute shaders, GPU profiling, and GPU debugging.
• Proficiency in Rust or C++, with strong reasoning about memory, concurrency, and performance.
• Strong foundations in graphics mathematics, including linear algebra, geometry, probability, and sampling.
• Ability to diagnose and correct why rendered frames do not look realistic.
• Experience owning complex technical projects and making architectural decisions in ambiguous problem spaces.

Nice to have

• Experience with production renderer or engine internals such as Cycles, Arnold, RenderMan, V-Ray, Karma, Unreal Engine Lumen or path tracing, or Unity HDRP.
• Experience building or integrating ML denoisers or neural rendering.
• Experience with ACES, OpenColorIO, HDR output, or film-look pipelines.
• Experience with cross-platform graphics abstractions such as wgpu, including extending them for ray tracing.
• Experience optimizing rendering for Apple silicon or mobile GPUs.
• Experience with Rust, video compositing, or integrating 2D and 3D rendering in creative tools.

Culture & Benefits

• Full-time employment with comprehensive medical, dental, and vision plans.
• 401(k) with employer match, commuter benefits, generous PTO, and health and wellness perks.
• Catered lunch multiple days per week, an evening dinner stipend when working late, and a Grubhub subscription.
• Multiple team offsites per year and monthly team events.
• Benefits apply to full-time employees only.