Systems Engineer role supporting major apparel EC platform operations. Korean nationals coordinate with Korean headquarters and domestic teams. Responsibilities include: system improvement activities, data extraction, alert response, batch recovery, release management, incident response, proposal creation, and inquiry handling. Full-time position in Tokyo's Shibuya ward. Monthly salary ¥300,000+. Complete weekend/holiday rest, 120+ annual paid days. Includes transportation allowance, certification support, flexible dress code. No overtime, stable operations focus. Welcoming to IT career-starters with comprehensive training provided.