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Unity · 8 hours ago

Principal Applied Scientist

San Francisco, CA

Full-time

Onsite

Lead/Staff

$188K/yr - $358K/yr

Unity is shaping the future of real-time 3D development by enabling creators to harness intelligent, autonomous systems. They are seeking a Principal Applied Scientist to lead advancements in multimodal LLMs and spatial reasoning, directly influencing AI-driven workflows within the Unity engine.

3D TechnologyReal Time

No H1B

Responsibilities

Drive initiatives to improve spatial reasoning in large models, including understanding scene layouts, object relationships, navigation, and 3D dynamics

Develop and refine world modeling approaches that allow AI systems to build, maintain, and reason over structured representations of complex game environments

Advance multimodal LLM architectures that integrate text, vision, and spatial signals to support agentic game authoring and interactive creation tools

Prototype new AI-assisted workflows, such as natural-language scene editing, spatial instruction following, or agent behavior specification

Collaborate with engineering and product teams to translate research innovations into production-ready features and tools

Define evaluation strategies and benchmarks grounded in real game-development scenarios to ensure models are robust, reliable, and performant

Contribute to the long-term vision for Unity’s agentic AI ecosystem, balancing usability, scalability, and creator empowerment

Mentor scientists and engineers while fostering a collaborative, innovative, and inclusive technical culture

Qualification

Multimodal LLMsSpatial reasoningWorld modelsPythonPyTorchTensorFlowEnvironment-agent interactionCommunicationCollaboration with teamsMentoring

Required

Advanced degree (MS or Ph.D.) in Computer Science, Machine Learning, Robotics, or a related field - or equivalent practical experience

Deep expertise in multimodal LLMs, spatial reasoning, world models, or closely related areas

Proven track record of research impact, through publications or applied contributions to production systems

Hands-on experience building and evaluating large models, particularly those grounded in perception or environment-based reasoning

Proficiency in Python and experience with modern ML frameworks such as PyTorch or TensorFlow

Strong understanding of environment-agent interaction, simulation frameworks, or embodied AI

Ability to translate research ideas into high-quality, practical systems

Excellent communication skills and experience collaborating with cross-functional teams including engineers, designers, and product managers

Preferred

Experience integrating AI research into game engines or real-time simulations

Familiarity with Unity or other 3D engines

Background in reinforcement learning, planning, or agentic systems

Experience working with multimodal datasets or synthetic data pipelines

Passion for empowering creators and improving the AI-assisted authoring experience

Benefits

A wide range of benefits designed to support employees' well-being and work-life balance

Company

Unity

Glassdoor3.3

Unity [NYSE: U] offers a suite of tools to create, market, and grow games and interactive experiences across all major platforms from mobile, PC, and console, to extended reality.

Founded in 2004