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LLM Engineer

Spellbrush· Engineering
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San Franciscofull-timePosted 11mo ago

About the role

Seeking an LLM Prompt Engineer at Spellbrush to enhance character and world development in a mobile turn-based tactics game through creative prompt engineering and understanding AI language models.

Responsibilities

  • Become the power user and wizarding wordsmith of our LLM models, coaxing out new turns of phrase, emotional responses, and vivid imagery through imaginative prompt engineering.
  • Deeply understand our next flagship game’s core narrative, themes, and character motivations and conflicts – then translate these elements into elegant LLM prompts.
  • Work with our Creative Director to develop new systems for enabling our game’s characters to freely express themselves in the native game platforms where they interact with players.

Qualifications

  • You endeavor to use LLM’s to revolutionize character communications.
  • A familiarity with text-based Generative AI and LLM is handy, but more valuable is your writing and creative ability.
  • You’re eager to push the boundaries of written and verbal communications.
  • Deep understanding of human language nuances and emotional expression.
  • Resonance with anime aesthetic and characters.

Skills

Required:Prompt EngineeringCreative Writing

Benefits

  • Competitive salary dependent on experience, location, and fit.
  • Generous compensation package including equity.
  • Top-tier employer-sponsored health, dental, and vision insurance.
  • High ownership and flexibility working in a small, in-person team in downtown San Francisco.
Last updated Mar 18, 2026. Interested? Apply on the company site.
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About Spellbrush

Making Anime Real

Here at Spellbrush, we're passionate about making a good anime game. We also happen to be the world's leading generative AI studio — we're the team behind niji・journey. We are currently investigating how AI can be used to help human artists perform masterpieces in the most complex medium of our times: video games. Our games are characterized by a no-compromise approach to well-balanced gameplay married to a truthful love of visual arts.

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