IT Security Consultant

### Job Description This position involves working as a security consultant or in operations (monitoring) at a major company in the telecommunications industry. Depending on your experience and preferences, you will be assigned to one of the following roles: **■ Consultant Duties** You will be stationed at the information systems department of a major company (in the telecommunications industry) and will be responsible for consulting services such as security system and cybersecurity support, as well as CSIRT support. * **Security System and Cybersecurity Support:** Information security management, compiling vulnerability assessments for each business process, and report creation. * **CSIRT Support:** Incident response system construction and operation support, threat intelligence, and Crowdstrike operation support. * **Operational Support:** Providing one-stop support from identifying issues to proposing solutions, integrating vulnerability assessment results, and analyzing logs from EDR tools. **■ Monitoring Duties** You will be stationed at the information systems department of a major company and will be responsible for security checks on various services (payment apps, mobile communications, internal systems, etc.) and monitoring of financial systems. * **Security Check Response:** Updating/managing check sheets for external services, requesting checks from personnel, and conducting interviews. * **Inquiry and Coordination:** Responding to inquiries regarding check sheets and coordinating with stakeholders. * **Reporting and Improvement:** Summarizing check results, creating reports, and providing security-focused advice. ### Job Requirements * 2+ years of experience in security-related system or product operation or IT-related security work. * Practical experience in system checks and audits (e.g., audit trails and log analysis). * **Language:** JLPT N1 proficiency required. ### Preferred Skills * Experience communicating with clients and negotiating basic design documents. * Ability to read system overview and network configuration diagrams. * Certifications: Fundamental Information Technology Engineer, Applied Information Technology Engineer, or Information Security Specialist. * Experience in internal information systems department audits. ### Working Hours & Conditions * Standard working hours: 8 hours/day. * Break time: 60 minutes. * System: Full flextime system with no core time. * Work environment: Remote work is the general rule, though office visits may be required occasionally (e.g., equipment collection or specific project needs).