Director, Multi-Modal AI: Agentic World Building

Unity
Mountain View, CA, USAPosted 27 February 2026

Job Description

<p><strong>The opportunity</strong><br>Generative AI has spent the last few years mastering pixels and prose. Unity is here to make it move. We are seeking a visionary Director, Multi-Modal AI to lead the charge in transforming "dream pixels"—static AI hallucinations—into Dream Games. This is a zero-to-one leadership opportunity to build Unity’s first-party intelligence layer. You won't just be calling APIs; you will be building the brain that understands 3D space, masters game mechanics, and empowers every creator to manifest their vision into a living, breathing Unity environment.</p> <p>You will lead the applied research organization responsible for Agentic 3D World Building. Your goal is to move beyond simple asset generation and solve the industry's "holy grail": Spatial Reasoning. By leveraging cutting-edge World Models and Multi-Modal LLMs, you will enable a future where natural language doesn't just describe a scene—it authors it, simulates it, and plays it.</p> <p><strong>What you'll be doing</strong></p> <ul> <li>Architect the "World Brain": Lead the research and implementation of Agentic workflows. You will use World Models to ensure AI understands the "why" and "how" of a 3D scene—from physics-based constraints to complex scene hierarchies.</li> <li>Build the Multi-Modal Arm: Own the fine-tuning and distillation of state-of-the-art MLLMs. You will specialize these models to generate high-fidelity game mechanics, shaders, and logic that respond to multi-modal prompts (text, image, and spatial data).</li> <li>Master the Teacher-Student Pipeline: Since we aren't just "pre-training" in a vacuum, you will drive the strategy for distilling massive foundation models into high-performance, edge-ready "students" optimized for the Unity Editor.</li> <li>Bridge Science and Play: Solve the grounding problem. You will ensure that AI-generated content isn't just a visual trick, but is engine-ready, mathematically sound (transforms, quaternions, nav-meshes), and physically plausible.</li> <li>Scale the Data Flywheel: Turn Unity’s massive ecosystem into an intelligence moat. Build secure, rights-managed pipelines and "teacher-led" synthetic data generation to train models on the nuances of game development that the rest of the world hasn't even seen yet.</li> </ul> <p><strong>What we're looking for</strong></p> <ul> <li>The "Spatial DNA": You don't just know AI; you know 3D. You understand that a game is a living system of transforms, raycasts, and rigidbodies.</li> <li>Proven AI Leadership: 10+ years in ML/AI, with 5+ years leading high-performance applied research teams. You have a track record of shipping proprietary models that solve real-world problems.</li> <li>Fine-Tuning Distillation Experts: You are a master of instruction tuning, PEFT, and model compression. You know how to take a "generalist" model and turn it into a "Unity Specialist."</li> <li>Agentic Visionaries: You have experience with agentic frameworks and autonomous systems that can reason through multi-step tasks in complex environments.</li> <li>Optimization Obsessed: You understand the constraints of a real-time engine. You are comfortable with quantization (INT8/FP8) and speculative decoding to ensure the AI feels like a collaborator, not a bottleneck.</li> </ul> <p><strong>Additional information</strong></p> <ul> <li>International relocation support is not available for this position</li> </ul> <p><strong>Benefits</strong><br>At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.</p> <p>Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.</p> <p>While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation a ... (truncated, view full listing at source)
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