Lead enterprise-wide digital transformation strategy and execution across Mizuho Securities and the financial group. Manage AI, data, and business reform projects, coordinate stakeholders, report to executives, and mentor DX personnel.
About this role
The role belongs to the Cybersecurity Management Department and plans and advances cybersecurity measures. Responsibilities include planning security infrastructure improvements, introducing security solutions, strengthening governance, and developing measures for attack detection, defense, recovery, and the use of AI.
The position also handles cybersecurity incidents through detection, containment, and recovery, including CSIRT activities with internal teams, external parties, and overseas offices. It monitors attacks using current monitoring and analysis tools, and plans and promotes contingency exercises for the continuity of securities operations, including alternative procedures, system stoppage, and recovery drills.
Additional responsibilities include planning and promoting regular cyber-risk assessments, such as system design evaluations, vulnerability assessments, and penetration tests. The role coordinates with subsidiaries in the Americas, Europe, and Asia on incident response, security measures, governance, and the collection and distribution of information.
Required experience includes work in system-related functions such as infrastructure or application development, system operations, system planning, or system controls, with involvement in cybersecurity or information security. The level of experience required varies based on the assigned duties and position. Experience supporting cybersecurity measures, obtaining relevant qualifications, establishing internal rules, handling incidents, or improving security maturity through assessments is welcomed. More than five years of cybersecurity experience, experience communicating with overseas offices, and overseas assignment experience are also listed as welcome qualifications.
Less experienced candidates may receive guidance from specialized members and attend training. Job rotation and project participation can provide experience across a broad range of cybersecurity functions.
Daily reading and writing in English is required, while business-level spoken English is preferred. Japanese ability at N1 level is required. The workplace is the Harumi office in Chuo, Tokyo, with possible changes to company-designated locations including telework locations.
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