Manage IT risk and security operations, including risk assessment, incident management, and policy development.
About this role
This role leads the SOC in Rakuten’s Cyber Defense Operations Section, protecting critical telecommunications infrastructure. It combines security-team management with hands-on leadership of the shift from reactive monitoring to intelligence-led, AI-augmented defense.
Core work includes AI-driven detection and response, SOAR integration, L3 escalation, and oversight of telco networks, containerized environments, and Kubernetes clusters. The manager supports DFIR and root-cause analysis and establishes governance playbooks and SOPs. The named stack includes Docker, Kubernetes, Python, Go, Bash, AWS, Azure, GCP, and LLM-based security tools.
Applicants need technical-team leadership in a 24/7 environment, AI/ML security expertise, and telco knowledge of SS7, Diameter, GTP, 5G core security, and virtualization. They also need container/Kubernetes security, Python, Go or Bash scripting, SOAR, DFIR, and incident-response experience, plus 10+ cybersecurity years including six leading a SOC, a related bachelor’s or master’s degree, relevant certifications, and advanced overall English as listed.
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