JsisOn careers

JsisOn OÜ is building the Story Rhythm Engine, an AI-driven automation platform that transforms written episodes into edit-ready visual formats for webtoon, video, and film. At the heart of our technology is the concept of Shot Rhythm—the timing, pacing, and emotional beats of camera cuts that give stories their flow. While stories often fail not in their writing but in their rhythm, our engine preserves and amplifies the emotional intent of authors by capturing narrative waveforms and mapping them into consistent, reproducible shot structures .

Our process moves seamlessly from script → PV (Peak–Valley) curve → automated shot board, enabling creators to achieve professional-quality visual storytelling in a fraction of the time. This system allows one engine to serve three outputs—webtoon, video, and film—ensuring consistency, speed, and reproducibility across formats . By automating rhythm design, we solve one of the most expensive bottlenecks in creative production, allowing studios and creators to scale content without sacrificing emotional impact.

In just 20 days, we developed an MVP that demonstrated 95% narrative consistency and 85% shot tagging accuracy. These results validate both the feasibility and scalability of our approach . The foundation of our moat lies in a proprietary dataset and reproducible PV model embedded with invisible watermarking, ensuring authenticity, security, and defensibility.

We are now raising a €200K Seed (~$220K) round to expand product and technology. Our roadmap includes the Golden Set expansion, preset packs for studios, onboarding 20 creative studios, and building the batch infrastructure needed for accuracy uplift and scalability. Alongside this, we will strengthen the team with hires in SaaS engineering, business development, finance/operations, and growth/marketing, ensuring rapid adoption and sustainable growth .

The founder, Jisook Park, is an Amazon-published author of a 9-volume series and a dataset architect who has