CareerPlan

Security Engineer CIO Office - Company CIO Office (CIOO)

Tokyo, JapanFull-time2026-11-05 → 2026-11-10

Core

Lead enterprise-wide security strategy and governance for large-scale telecommunications infrastructure to protect against cyber threats and ensure service stability.

Role type

Senior IC security engineer (strategy & governance)

Builds

Enterprise security policies, risk mitigation frameworks, and secure cloud/DevSecOps environments

Domain

Telecommunications / Cybersecurity

Required skills

Security strategy formulation, Cloud security (AWS/GCP/Azure), DevSecOps integration, Incident response leadership, Security assessment & risk planning, IT infrastructure knowledge

Preferred skills

Security automation (Python/Go), Large-scale carrier operations experience, Governance frameworks (ISO 27001/NIST CSF)

Technologies

AWS, GCP, Azure, Python, Go, CI/CD pipelines

Responsibilities

Assess security maturity and create policies to mitigate risk, Provide technical support to elevate security levels, Lead incident response and root-cause analysis, Collaborate with global teams on security strategy

Seniority

Senior, hands-on IC