SR SECURITY ANALYST

Japan, Tokyo, Japan • Posted May 26, 2026

Job Type: Full-time

Location: Japan, Tokyo

Posted: May 26, 2026

Category: Computer Occupations

Application Deadline: July 05, 2026

Role Description

The Role
Support Hour: Office Hour Work (may change to shift work)
The Main Responsibilities

Monitor, triage and response to alerts for client security events detected on the various monitoring system.
Investigation and resolution of outage or abnormal behavioral scenarios on MSS products.
Research and implement customer generated change requests for MSS products.
Generate incident cases and escalate to superordinate teams in accordance with time and severity-based SLA’s;
Perform tasks associated with the installation, turn up and maintenance of Lumen security infrastructure.
Manage technical workload and engage Incident Response Analysts and management
Inclusive of serving as the technical escalation by the L1 SOC Analyst
Perform complex changes within the managed security environment and manage and resolve customer fault and service outage / impairment events.
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