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Spellbrush

Spellbrush

AI-powered anime game studio

9 open roles
gamingSan Francisco, CA51-200SeedFounded 2018

About

Spellbrush builds anime-style video games using generative AI to enhance human artistry. They develop titles like 3D first-person adventures and mobile tactics games with integrated LLMs for storytelling and AI companions. As creators of niji·journey, they focus on balanced gameplay and stunning visuals for gamers and artists.

Tech stack

UnityReactTypeScriptC#KubernetesKafkaRedisPythonRaySparkAirflowAWSGCPAzureSnowflakeRedshiftBigQueryS3SQLPyTorch

Open roles

9
Spellbrush

HPC/ML Infrastructure Engineer

SpellbrushSan Francisco, CA

Lead bringup, administration, and operations for a large-scale anime AI training GPU cluster. Bridge researchers and bare-metal systems using SLURM, filesystems, networking, and Linux sysadmin skills.

Salary not listed
On-siteDevOps / SRE
Spellbrush

3D Game Programmer (Unity)

SpellbrushSan Francisco, CA

Develops 3D first-person anime adventure game in Unity integrating AI companion powered by in-house LLM for dynamic storytelling and puzzles. Requires passion for anime, prior independent 3D Unity game development, and excitement for generative AI.

Salary not listed
HybridGame Engineering
Spellbrush

AI Anime Researcher - LLM

SpellbrushSan Francisco, CA

Conducts advanced LLM research for post-training, roleplay, and real-time integration into an anime-style 3D adventure game AI companion. Requires deep LLM expertise, anime passion, and ability to build scalable infrastructure on a small onsite team.

Salary not listed
On-siteAI Research
Spellbrush

AI Anime Researcher - Motion Generation Models

SpellbrushSan Francisco, CA

Researches and develops motion generation models (text-to-motion, audio-to-motion, facial animation) for real-time AI anime companions in narrative-driven 3D games. Requires hands-on AI model training experience and anime passion; on-site in SF or Tokyo.

Salary not listed
On-siteAI Research
Spellbrush

Level Designer

SpellbrushSan Francisco, CA

Designs engaging tactics missions using Unity and in-house tools, including enemies, terrain, and objectives. Collaborates with team, playtests content, and contributes to tooling with C# skills. Requires proven game content creation and shipped game experience.

Salary not listed
On-siteGame Engineering
Spellbrush

Game Programmer (Unity)

SpellbrushSan Francisco, CA

Builds features for an anime mobile tactics game using Unity and C# as a generalist programmer on a small team. Requires 5+ years experience, shipped Unity games, and interest in applying generative AI research.

Salary not listed
On-site5+ YOEGame Engineering
Spellbrush

Software Engineer

SpellbrushSan Francisco, CA

Builds scalable data pipelines and infrastructure for AI research, processing petabyte-scale anime data across 10k GPUs. Partners with researchers using distributed systems, big data tools, cloud services, requires 3+ years generalist experience.

Salary not listed
On-site3+ YOEData Engineering
Spellbrush

AI Infrastructure Engineer

SpellbrushSan Francisco, CA

Builds and runs end-to-end ML inference infrastructure for generative AI image models across mobile and web platforms. Requires expertise in distributed systems, Kubernetes, Kafka, Redis, GPUs, and multi-cloud environments.

Salary not listed
On-siteDevOps / SRE
Spellbrush

Front-End Engineer (Anime)

SpellbrushSan Francisco, CA

Builds complex, interaction-heavy front-end applications using React and TypeScript for anime/video game tools, focusing on responsive UIs with Canvas/WebGL. Requires anime passion, design sense, and on-site collaboration in small teams.

Salary not listed
On-siteFrontend Engineering