Supply Chain Management / Logistics Planning (Demand Planning Specialist) at 株式会社JT, a Korean cosmetics distribution company in Tokyo (Shibuya Ward, Harajuku/Meiji-Jingu-mae stations). Full-time permanent position, working hours 9:00-18:00 (8-hour day, 60-minute break). Salary 5,000,000-6,000,000 yen annually. Core responsibilities: demand and inventory management (monitoring demand/shipment performance, managing inventory levels and shipping schedules, calculating purchase orders), data visualization and reporting, stakeholder coordination with the Korean headquarters for ordering and lead-time adjustments, and operations execution (order/shipment procedures, database updates, handling stockouts/overstock). Brands managed include Anua, LaKa, d'Alba, medicube, daisique, and hince. Required qualifications: intermediate Korean (Hangul) business communication capability (必要条件：韓国語（ハングル）中級), hands-on Excel data management, and prior experience in inventory management, demand planning, or logistics. Direct coordination with the Korean headquarters is part of the role. Japan-based on-site role, not remote-friendly. Benefits include annual paid leave, 125+ annual holidays, lunch allowance, bi-annual bonuses, and parental leave.