Security Promotion Specialist

This role supports a shift in DeNA’s security organization from uniform, company-wide rule setting and administration toward security support tailored to each business. The work covers a group with businesses including games, live streaming, healthcare, medical services, and sports, where the nature of security threats differs by area. The role also addresses ransomware, supply-chain attacks, and new risks associated with the growing use of AI.

Responsibilities include supporting business operations in relation to domestic and international privacy laws, including GDPR, CCPA, and Japan’s Act on the Protection of Personal Information. The specialist responds to internal security consultations and works alongside business teams, operates DeNA CERT, and handles incidents. Other duties include security education and awareness activities, information-security audits, participation in the efficiency improvement and automation of security work using AI, and the consolidation, documentation, and sharing of security knowledge.

The role also involves building and advancing privacy and security management frameworks in cooperation with DeNA group companies. The position is part of the Security Promotion Group, with involvement across the wider security field determined according to the person’s experience and professional interests after joining.

The initial work locations are DeNA’s Shibuya office in Shibuya, Tokyo; the Yokohama Arai Building office; or the Yokohama BASEGATE office. Work may also be performed from the employee’s home or another company-approved equivalent location. The possible scope of workplace changes to company-designated business locations, including remote-work locations. The listed offices are indoors non-smoking, with designated indoor smoking areas available.