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Rendering Systems Engineer - Simulation & Synthetic Data

World LabsSan FranciscoEngineering
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Salary
$250K – $325K
Job type
Full-time
Posted
23 Sept 2026
Status
Open · checked 7d ago

About this role

World Labs is looking for a Rendering Systems Engineer to join the team in San Francisco for a full-time, in-person position. This role suits an experienced graphics professional ready to build and scale advanced rendering systems for synthetic data generation.

Role Overview

The organization is seeking a Senior or Staff Rendering Systems Engineer to build and scale high-throughput, Unreal Engine-based rendering systems for synthetic data generation. Responsibilities include owning low-level rendering and GPU performance tasks needed to run many-world rendering efficiently across cloud GPU fleets. The professional in this role will profile end-to-end workloads, diagnose performance and I/O bottlenecks, and implement production-quality C++ and CUDA systems within and around Unreal Engine. Furthermore, the engineer will partner with infrastructure and data teams to scale distributed execution and integrate the renderer with internal simulation and data pipelines.

Key Responsibilities

Modify Unreal Engine's renderer to support running independent worlds or cameras across GPUs and build the cloud job-orchestration layer.
Maximize hardware throughput and GPU efficiency via custom parallelization, caching strategies, and high-performance interconnect communication.
Integrate the rendering system seamlessly with proprietary internal toolchains and data pipelines.
Perform rigorous profiling, roofline analysis, and root-cause diagnosis to resolve compute and I/O limits.
Collaborate with research teams to accelerate experimental iteration and enhance system robustness at scale.

Requirements

Strong background in performance engineering, including telemetry profiling, roofline analysis, latency and throughput optimization, and systematic root-cause analysis.
Deep understanding of the Unreal rendering stack, including the platform-agnostic rendering layer, command lists abstract layer, and RHI abstraction layer, plus practical experience customizing engine source and shader pipelines.
Familiarity with GPU resource lifetime, synchronization, and async compute.
Working knowledge of Nanite, Lumen, and associated graphics debugging suites.
Advanced low-level GPU optimization skills in CUDA or Vulkan, with an emphasis on kernel-level tuning, memory hierarchy management, and memory bandwidth efficiency.
High proficiency in C++, CUDA, Python, and possibly Rust, alongside practical Vulkan implementation experience.
Proficiency in rendering material adjustment and custom shader development pipelines.
At least 4+ years of professional experience.

Nice to Have

3-4+ years of engineering experience within AI research labs, machine learning enterprises, or robotics and autonomous vehicle organizations.
Familiarity with distributed data interconnects and collective communications primitives such as NVLink and NCCL.
Proven track record deploying or serving large-scale generative, diffusion, spatial, or video foundation models.
Hands-on creation of performance-profiling, telemetry, and observability toolchains for real-time graphics pipelines and GPU workloads.

Skills and Tools

Python
Rust
C++
CUDA
Vulkan
Unreal Engine
Nanite and Lumen

Salary and Benefits

Annual salary range between $250,000 and $325,000 USD.
Generous health, dental, vision, and 401(k) benefits.
Flexible PTO and paid parental leave.
Relocation support as needed.
Visa sponsorship is available for qualified candidates.

About the Company

World Labs is a frontier AI research and product company advancing spatial intelligence as the next step beyond large language models. Co-founded by Dr. Fei-Fei Li, Justin Johnson, and Ben Mildenhall, the company pioneers world models that perceive, generate, reason, and interact with virtual and physical worlds. Its flagship product, Marble, transforms text, images, and video into fully navigable 3D worlds for gaming, film, architecture, robotics, and immersive digital experiences. Backed by leading investors with over $1B raised, the company brings together top talent at the intersection of AI research and real-world deployment.

How to Apply

Candidates should submit their applications directly on the official company careers page.

Skills and tech stack

PythonC++RustMachine LearningCUDADiffusion

Questions candidates ask

What is the salary range for this role?

The annual salary ranges from $250,000 to $325,000 USD.

Is this position remote?

No, this role is based in San Francisco, California, and requires working in the office 5 days a week.

Does World Labs offer visa sponsorship?

Yes, World Labs sponsors visas for qualified candidates.

What core technical skills are required?

Candidates must have high proficiency in C++, CUDA, Python, and ideally Rust, alongside deep experience with Unreal Engine, low-level GPU optimization, and rendering architectures.

What benefits are included with employment?

Benefits include health, dental, vision, and 401(k) plans, flexible PTO, paid parental leave, and relocation support.

Ready to apply?

The application is on the official World Labs careers page.

Apply on company site