Senior Security Engineer / Architect

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Senior Security Engineer / Architect in Others

SmartNews
Full time
Email

Others
09/10/2026
Report

Shibuya, Japan

Responsibilities

Define security blueprints, threat models, and reference architectures for engineering teams.
Develop technical solutions to prevent or mitigate security vulnerabilities and strengthen system security.
Automate security checks within developer and AI-agent workflows to reduce manual review.
Build API-based integrations among security tools such as CSPM, SAST/SCA, ASM, and EDR.
Provide real-time security observability and self-service security capabilities for engineering teams.
Own technical controls and guardrails that enable safe enterprise AI adoption.
Lead security practices spanning product development and corporate operations.

Requirements

Proficiency in both English and Japanese to support a multinational engineering community.
Hands-on experience securing rapid enterprise AI adoption, including third-party LLM integrations, MCP server onboarding, and agentic tools operating on internal systems.
A strong Security as Code mindset focused on automation and developer self-service.
Detailed knowledge of system vulnerabilities and remediation or mitigation techniques, including penetration testing.
Strong understanding of the intersection between DevOps and SecOps, with experience building high-velocity and secure engineering cultures.
Preferred experience with supply-chain protection and SBOM-based vulnerability management.
Preferred ability to design technical guardrails for agentic systems.
Interest in and active community involvement with AI protocol standards such as MCP and A2A.

Benefits

Required healthcare and social insurance under Japanese labor law, plus an annual health check.
Tokyo office location.
Visa sponsorship and overseas relocation support are available for eligible candidates.

SmartNews

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