Senior Security Engineer

About PJ IT

PJ IT provides managed IT for offices of 10 to 200 users: help desk, patching, backups, Microsoft 365 and firewall management. Clients rely on us for laptop setup, Intune enrolment, backup monitoring and after-hours help when something breaks.

We have an immediate opening for a Senior Security Engineer in Tokyo. This hire will run our application security program: threat modelling, code scanning, pen test follow-up and developer guidance. On site, Tokyo.

Your responsibilities

Maintain EDR coverage with CrowdStrike Falcon or Microsoft Defender for Endpoint. Design and maintain SSO, MFA and conditional access with Okta or Entra ID. Triage bug bounty reports from HackerOne or Bugcrowd. Respond to security incidents and lead the technical investigation. Coordinate external penetration tests and track remediation. Harden AWS, Azure or GCP accounts and fix misconfigurations found by Wiz, Prisma Cloud or Security Hub.

About you

6+ years in security engineering, application security or a related engineering role. Strong knowledge of the OWASP Top 10 and common web vulnerabilities. Programming or scripting ability in Python, Go or similar. Hands-on cloud security experience in AWS, Azure or GCP. Understanding of networking, TLS, PKI and authentication protocols (SAML, OIDC, OAuth 2.0).

Why work with us

Salary range: ¥10,500,000-¥13,500,000 annually

Paid leave. Flexible hours. Bonus twice a year. Social insurance. Commuting allowance paid in full.

Please submit your CV in English.

Start: Within 30 days.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at PJ IT Co., Ltd..