Applicants must be currently residing in Japan and possess valid authorization to work in Japan.  ( (Fully remote work may be available within Japan, depending on the project requirements/needs, candidate’s seniority, experience, and location.) ■ Position Overview We are seeking an accomplished, enthusiastic, and self-motivated Technical Designer to join our Japan-based team working on exciting projects. In this role, you will create, implement, and refine complex, technical, and systemic design elements in a game. You will bridge the gap between creative design vision and technical execution, taking ownership of core gameplay mechanics from initial concept through final delivery.  Working within a supportive and creative team environment, you will directly shape the development of top-tier games while collaborating closely with engineering, art, and production disciplines.   ■ Key Responsibilities Technical Implementation & Prototyping Lead the implementation of gameplay components from end to end using advanced visual scripting (e.g. Unreal Engine Blueprints), Sequencer, and engine systems. Design, implement, and iterate on complex, technically challenging gameplay mechanics, narrative elements, and systems. Build low-fidelity prototypes to prove out gameplay ideas, mechanics, and systems early in development. Systemic Design & Production Ownership Deconstruct broad feature specifications into actionable, detailed implementation tasks for designers, engineers, and technical artists. Drive feature production from start to finish, ensuring alignment, cross-disciplinary collaboration, and delivery on deadlines. Balance design ambition with production constraints while adapting designs based on iterative feedback. Documentation & Cross-Discipline Collaboration Serve as a technical bridge across departments, advocating for best practices. Write and maintain comprehensive technical design documentation for gameplay systems, pipelines, and content. Communicate continuously with engineering, art, and design leadership to build implementation plans that align with feature specifications.