Serve as the technical representative for Mercari US and coordinate with Security Operations, Vulnerability Management, Enterprise Security, Platform Security, and related functions.
Translate US security priorities, governance/compliance needs into actionable implementation plans, controls, and remediation tasks.
Drive follow-through on security work impacting the US business, including detection/response workflows, vulnerability management, hardening activities, and security control validation.
Partner with engineering teams to review architectures, identify security gaps, and improve security of applications, cloud environments, networks, endpoints, identity systems, and supporting infrastructure.
Define and improve security standards and technical controls across IAM, endpoint security, logging/monitoring, DLP, network security, cloud security, and AI-enabled workflows.
Build and maintain automation, integrations, dashboards, and reporting mechanisms to reduce manual effort and improve operational visibility and speed.
Support threat modeling, risk assessments, and security reviews for systems/projects relevant to Mercari’s US business.
Support audit/compliance activities by translating requirements into technical controls, evidence, remediation plans, and operational improvements.
Communicate risks, trade-offs, and status clearly to stakeholders in Japan and the US, driving progress through technical credibility and cross-functional collaboration.
技術スタック
必須スキル
Bachelor’s degree or equivalent practical experience in cybersecurity, computer science, information systems, or a related field
Strong understanding of core security concepts: least privilege, defense in depth, authentication/authorization, network segmentation, incident response, secure design