Spellbrush

The Role: Spellbrush, the world’s leading generative AI studio behind niji・journey, is looking for an AI Infrastructure Engineer to join us in building out end-to-end ML infrastructure to run our models on all platforms. What you’ll do: Design, implement and run our next-generation inference architecture for running all our models powering all platforms and applications (mobile, web, etc.). Work alongside a fast-paced and nimble team developing the latest state-of-the-art image generation models serving over 16 million users You might be a great fit if: You have experience with large distributed systems You have familiarity with the latest hotness like K8S, Kafka, NATS, Redis, etc. You’ve cut your teeth on both on-prem and multi-cloud clusters. But most importantly, you deeply understand the tradeoffs and the failure mode of each system you introduce (and potentially even have the battle scars to prove it!). You have an excellent understanding of GPU’s handling large workloads GPU workloads are different from traditional CPU workloads in very interesting ways. Experience deploying, or even optimizing them end-to-end, is a huge plus for this role The anime aesthetic resonates with you. It's no secret – we're huge anime enthusiasts, and our work focuses on the anime aesthetic. Your work will enable millions of users to partake in an evolving creative movement. You're comfortable working on small, fast-paced teams We currently have a small tight-knit team 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. IMPORTANT: Given the anime focus of this position, it is required to answer the question "Who is your favorite waifu or husbando" when submitting your application through Bookface. Applications that fail to include a response to this question in the application message will NOT be reviewed. The final base salary is dependent upon location, experience, fit, and other factors. In addition, we offer a generous compensation package that includes equity, top-tier employer-sponsored health, dental, and vision insurance, and additional perks! At Spellbrush, we value creativity, collaboration, and innovation. If you're excited about working with cutting-edge technology and passionate about anime, gaming, and generative AI, we’d love to hear from you! To apply - please share your previous work experience/resume, Github, or portfolio and the name of the best waifu or husbando in your message!

! The Anime Researcher 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. IMPORTANT: Given the anime focus of this position, it is required to answer the question "Who is your favorite waifu or husbando" when submitting your application through Bookface. Applications that fail to include a response to this question in the application message will NOT be reviewed. !

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 <u>niji・journey</u>. We are currently investigating how AI can be used to help human artists perform masterpieces in the most complex medium of our times: videogames. Our games are characterized by a no-compromise approach to well-balanced gameplay married to a truthful love of visual arts. If you love turn-based tactics games, please consider applying! ! The Role: Spellbrush, the world’s leading generative AI studio behind_ <u>niji・journey</u> __ , _ is looking for an LLM Prompt Engineer to bring the characters and world in our mobile turn-based tactics game to life with distinctive flair! If you love games like Fire Emblem and Final Fantasy Tactics and are eager to utilize Generative AI to create evocative gameplay experiences, please apply! What you’ll do: 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. NOTE: You do not need to be currently involved in LLM research or an AI / ML expert to apply - we highly value your writing and creative ability. You might be a great fit if: You endeavor to use LLM’s to revolutionize character communications. A familiarity with text-based Generative AI and LLM is definitely handy, but moreso than that you understand that LLM’s are working off of datasets and training, and that your finesse in guiding the models will produce outstanding delights of diction. You’re eager to push the boundaries of written and verbal communications. Part of the challenge (and excitement) of using LLM’s is that they can produce combinations of words and phrases to produce meanings, mental images, and interactions never before imagined. Maybe you’ve devised a new alien language for a sci-fi novel or a mana system for an underground race of mushroom people. Whatever it is, going beyond the norm in your creativity will help our LLM models reach their limitless potential. You understand what it means to be human, and how our human tendencies emerge in conversation. To make authentic and genuine conversations, we believe the author (or in this case, prompter), should have a deep familiarity with the nuances that make language feel more “human”. Whatever your mode of introspection and emotional exploration, we’d love to know (and support it)! The anime aesthetic resonates with you. It's no secret – we're huge anime enthusiasts, and our work focuses on the anime aesthetic. Your work will enable characters to partake in the full spectrum of emotions and reactions with unique personality, whether yandere, tsundere, or a new archetype you invent! (This is a check to see if you're reading thoroughly - craft a little "tweet" written by an anime character in the Anything Else you'd like us to know" question!) You're comfortable working on small, fast-paced, on-site teams Working here will feel very much like a small indie studio: close-knit, with high ownership and flexibility. We’re also an in-person studio. Our games team is at our office in downtown San Francisco, CA, 3-4x a week! And you're excited about the potential of Generative AI. You'll also be working closely with some of the best AI researchers in the world. Part of working with our team will involve looking at our latest research results and figuring out how to apply them to the game best. You will be at the cutting edge of what is possible with machine learning, art, and games. The final base salary is dependent u

! The Frontend Role: We're seeking a talented Front-End Engineer to join our team and help us build the next generation of anime and video game tools. You'll be responsible for designing and developing complex front-end applications, usually in react and typescript, with a focus on making responsive and delightful user interfaces. You may be a good fit if: You love anime and the anime aesthetic As a member of our team, you'll have the opportunity to push the boundaries of what's possible in the anime and video game industry. Ideally you're a fan of the genre. You enjoy working on complex SPAs. Most of our apps are interaction-heavy single-page editors, much closer in spirit to photoshop and blender than your typical SaaS app. A willingness to dive headfirst into canvas, webGL, and (maybe!) webGPU is recommended! And you also have some design sense. Large complex SPAs have all sorts of super interesting UI/UX challenges! We're looking for someone with experience building tasteful UI, a good design sense for layout, experiences, and microinteractions. You're comfortable working on small, fast-paced teams We currently have a tiny team of two on frontend engineering. You'll be working directly with some of the best AI researchers in the world to integrate their state-of-the-art models into your beautiful interfaces. 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. !

! The Unity Engineer Role: We are looking for an experienced game engineer with strong C# and Unity skills. You will be working closely with a small, multidisciplinary team to build out our upcoming anime mobile tactics game. You may be a good fit if: You love Strategy RPGs Our team draws tons of inspiration from titles like Fire Emblem, Final Fantasy Tactics, and X-Com. Our next title aims to bring the best of this genre onto the mobile screen. And you also love the anime aesthetic We're also huge anime fans if you haven't noticed. You deeply understand Unity We're looking for someone with 5+ years of programming experience and a high level of familiarity with Unity. A good candidate must have shipped at least one game with Unity (personal projects are great!) and have built up a sixth sense for what is the "happy path" in modern Unity development. You're comfortable working on small, fast-paced teams Working here will feel very much like a small indie studio: close-knit, with high ownership and flexibility. You're excited about the potential of Generative AI You'll also be working closely along some of the best AI researchers in the world. Part of working with our team will involve looking at our latest research results, and figuring out how to best apply it into the game. You will be at the literal cutting edge of what is possible with machine learning, art, and games. !