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Product Engineer

World LabsSan FranciscoEngineering
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Salary
$275K – $325K
Job type
Full-time
Posted
23 Sept 2026
Status
Open · checked 7d ago

About this role

World Labs is seeking a Product Engineer to build and ship cutting-edge applications powered by spatial intelligence models in San Francisco. This on-site role is an ideal fit for an experienced developer who thrives in ambiguous environments and wants to shape the future of artificial intelligence.

Role Overview

In this capacity, the professional will operate at the intersection of product development, research, and engineering. The position involves turning early concepts into reliable applications and APIs, often moving from ideation to launch within weeks. The chosen candidate will spearhead technical direction, manage model behavior in production, and create evaluations to ensure practical user outcomes.

Key Responsibilities

Collaborate with researchers to uncover emerging model capabilities and discover valuable product workflows before full specifications exist.
Direct model behavior inside products through prompting, conditioning, parameter selection, orchestration, and failure-mode analysis.
Create product evaluations to verify that users achieve practical and usable results.
Deliver solutions across multiple layers, including backend orchestration, public APIs or SDKs, and user interfaces.
Engage directly with users while maintaining long-term ownership of the quality and reliability of launched features.

Requirements

Bring at least 5 years of professional software engineering experience showcasing full-stack ownership.
Demonstrated history of launching a production application or API built on top of generative models, taking charge of end-to-end output quality.
Substantial backend or systems engineering depth combined with the ability to build user-facing surfaces.
Experience designing or utilizing evaluations for nondeterministic systems while understanding potential limitations.
Proven ability to collaborate with research teams and translate practical evidence into specific capability requests.
Self-directed work ethic that thrives without fully specified tickets while maintaining alignment on product bets.

Nice to Have

Background in 3D graphics or computer vision.
Experience developing public APIs or software development kits.
Familiarity with fine-tuning, LoRA, or adapter methodologies.
Previous experience as a founder or early-stage engineer.

Skills and Tools

Full-stack software engineering
Generative model integration and output evaluation
Backend systems and API development
Cross-functional collaboration with AI researchers
System orchestration and prompt management

Salary and Benefits

Annual salary range of $275,000 to $325,000 USD.
Comprehensive medical, dental, and vision insurance.
401(k) retirement plan.
Flexible paid time off and paid parental leave.
Relocation assistance and visa sponsorship support available as needed.

About the Company

World Labs is a frontier AI research and product organization advancing spatial intelligence. Co-founded by Dr. Fei-Fei Li, Justin Johnson, and Ben Mildenhall, the enterprise focuses on creating world models capable of reasoning, perceiving, and interacting with physical and virtual environments. Backed by major investors with over $1 billion raised, the company is assembling an elite team to build flagship solutions like Marble.

How to Apply

Interested candidates should visit the official World Labs careers page to submit an application for this position.

Skills and tech stack

Fine-tuning

Questions candidates ask

What is the location of the Product Engineer role?

The position is based in San Francisco, California, requiring an in-person schedule of 5 days a week in the office.

What is the salary range for this position?

The annual salary ranges from $275,000 to $325,000 USD.

How many years of experience are required?

Candidates must have 5 or more years of professional software engineering experience with demonstrated full-stack ownership.

Does World Labs offer visa sponsorship?

Yes, the company sponsors visas and works with qualified candidates through the visa application process.

What benefits are included with employment?

Benefits include health, dental, vision, and 401(k) plans, flexible paid time off, paid parental leave, and relocation support if needed.

Ready to apply?

The application is on the official World Labs careers page.

Apply on company site