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AI Anime Researcher

Spellbrush · Tokyo; San Francisco

Extracted from the posting

Base
Not stated
Remote
On-site in Tokyo (Akihabara) or San Francisco
Eng team
Team of four on AI
Visa
Visa sponsorships are available
Stack
PyTorch, JAX

AI researcher role designing and developing large-scale diffusion models, primarily for images with secondary work on 3D, text, video, and audio. Requires proficiency in PyTorch, with JAX also used for large-scale TPU training. Models move from research into production for niji・journey.


The Research Role:

We're looking for an experienced AI Researcher to join our team and help us push the boundaries of AI and anime. You'll design and develop large-scale diffusion models with a primary focus on images, and secondary focus on other modalities like 3d, text, video and audio.


You may be a good fit if:


You love anime and the anime aesthetic.

This one of the only labs in the world where you can combine your expertise on anime and deep learning to work on state-of-the-art anime models.


You understand diffusion, or can get up to speed quickly.

We're looking for experienced researchers who aren't afraid of jumping headfirst into experimenting and designing massive models.


You're proficient in Pytorch (and maybe JAX too)

We have a very large Pytorch codebase, and an equally large JAX codebase for large-scale TPU training.


You enjoy a tight loop between research and production.

We pride ourselves on getting models from the lab into production quickly. Our research team works closely with our internal studio to both develop game-ready models, and deploy regular quality updates to niji・journey.


You're comfortable working on small, fast-paced teams

We currently have a team of four on AI. You'll be working closely alongside some of the best AI researchers in the world, on the literal best image model in the world.

We also believe in the unmatched speed of in-person teams, and prefer on-site collaboration in either our primary research office in Tokyo (downtown Akihabara), or San Francisco. Visa sponsorships are available.



Technologies

PyTorchJAX
Spellbrush
Spellbrush
Website

Job details

TypeFull-time
Work ModeOn-site
LevelSenior
Location🇺🇸San Francisco, CA
PostedNov 06, 2026
Apply Now

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