Research Scientist - World Model

Luma

$150K — $180K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • PhD or equivalent research experience in ML, computer vision, robotics, or a related field.
  • Expertise in large-scale generative modeling, self-supervised representation learning, or model-based RL.
  • Strong proficiency in PyTorch and experience with multi-node cluster training.
  • Demonstrated research impact through top-tier publications or notable open-source contributions.

Responsibilities

  • Invent next-generation world-model architectures focused on controllability and physical consistency.
  • Develop mechanisms for controllability that enable agent interactions with generated worlds.
  • Define success metrics including physical fidelity, long-horizon coherence, and downstream usefulness for policy training.
  • Conduct scaling studies to evaluate compute, data, and architectural efficacy.
  • Publish research findings at leading conferences and contribute to open-source projects.

Benefits

  • Opportunity to lead groundbreaking research in generative video modeling.
  • Collaborate with a dynamic team at the forefront of AI development.
  • Engagement in meaningful projects that impact the future of AI and robotics.
  • Access to resources for continued learning and professional development.
  • Supportive environment for publishing and open-sourcing innovative work.
Full Job Description
You'll turn Luma's industry-leading generative video models into world models: interactive, controllable, physically faithful, and useful as a substrate for embodied reasoning. This is the role at the center of the thesis.

You'll invent next-generation world-model architectures and the controllability that lets an agent step into a generated world, and own the metrics that define success. It fits a researcher with deep generative-modeling or model-based-RL expertise who has trained models to the limits of a multi-node cluster. If you want a narrow, well-scoped research problem, this is broader and more open-ended than that.

What You'll Own
  • Invent next-generation world-model architectures (diffusion, transformer, autoregressive, or hybrid), focused on controllability and physical consistency.
  • Develop controllability mechanisms - action conditioning, view conditioning, long-horizon rollouts - that let an agent step into the world.
  • Define and own the metrics: physical fidelity, long-horizon coherence, action-following, and downstream usefulness for policy training.
  • Run scaling studies that show where compute, data, and architecture pay off.
  • Publish at the frontier and contribute to the open-source release that is the long-term deliverable.

First 90 Days

One way the first 90 could unfold.
  • Days 1-30 - Immerse & Diagnose: Get deep on the current video models and where they fall short as world models.
  • Days 30-60 - Ship & Validate: Prototype a controllability mechanism or architecture change and measure it against physical-fidelity and action-following metrics.
  • Days 60-90 - Scale & Systemize: Run scaling studies and push the most promising direction toward the open release.

What You Bring
  • PhD or equivalent research record in ML, computer vision, robotics, or a related field.
  • Deep expertise in at least one of: large-scale generative modeling (video/3D/world), self-supervised representation learning, or model-based RL.
  • Strong PyTorch and large-scale training experience, to the limits of a multi-node cluster.
  • A research record the field knows (top-venue publications and/or widely used open releases).

Nice to Have
  • Prior work on world models, model-based RL, generative video, neural simulation, or 4D scene representations.
  • Experience using generative models for downstream embodied tasks (planning, control, evaluation).
  • Enthusiasm for open-sourcing frontier models.

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