Krea AI
ML Researcher - Image / Video Diffusion
San Francisco · Full-time
Sponsorship not specifiedDetected 45 days ago
ExpressMachine LearningPyTorchData EngineeringLLMsRoboticsResearch
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odds of building a lasting career here
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Cap-exempt (no lottery)0
Sponsors this role68
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70
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About the role
- We believe AI is a new medium that allows us to express ourselves through various formats - text, images, video, sound, and even 3D.
- We've raised over $83M and are backed by world-class investors such as a16z, Bain Capital, and Abstract.
- We work full-time and in-person at our waterfront office in San Francisco.
Responsibilities
- Fully optimize and profile large distributed training runs across model architectures, kernels, data loading, memory constraints, and communication.
- Implement and improve various distributed training strategies including FSDP, CP, SP, TP, and EP.
- Continuously improve model quality and reliability through data, model architecture, training pipeline, structuring experiments, and eval design.
- Debug distributed training errors and implement fault tolerance solutions, identifying bad GPU, NVLink, Infiniband (IB) components as well as monitoring numerical errors and NCCL issues.
- Team: Work alongside a world-class team building the future of AI creative tooling
Requirements
- Strong proficiency in PyTorch and understanding of its inner workings.
- Experience in profiling and debugging large distributed training.
- Good knowledge of low precision training / inference in FP8, NVFP4, and MXFP8.
- Ability to iterate rapidly, and propose creative research directions.
Nice to have
- Proven track record in working with image or video models at scale (publications or open-source contributions a plus).
Skills
- Fast iteration and execution speed. Bias towards action, agency, and independence.
Compensation
- generous salary & equity packages
Benefits
- Competitive compensation: generous salary & equity packages
- Health & wellness: 100% health & 99% dental/vision insurance premiums covered for employees, health FSA accounts, & long-term disability coverage
- Time off: Flexible PTO policy
- Please note the above benefits & perks are for full-time employees
- Solid understanding of diffusion model training pipeline across pretraining, midtraining, preference optimization, and reinforcement learning.
Company info
- We're looking for an experienced Researcher with engineering skills who can work on large-scale image and video models training experiments, with experience training image models at scale.
Visa & Work Authorization
- We're open to sponsoring international visas where we can (e.g., STEM OPT, OPT, H-1B, O-1, E-3).
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This listing is sourced directly from Krea AI's careers page and normalized into a canonical job model.