Senior Corporate Engineer

This senior corporate engineering role supports the internal IT environment through device, account, SaaS and security operations. The role builds an environment in which employees can work securely and efficiently, handles integrations between internal services, and addresses operational issues across the department and company.

Responsibilities include designing, building, operating and improving a zero-trust security foundation using Entra ID, Intune, Jamf and Microsoft Defender for Endpoint. The role manages identity, access controls and authentication methods including SAML and OIDC-based SSO, Platform SSO, WHfB and certificates. It also manages Mac, Windows, iOS and Android devices through MDM tools such as Intune, Jamf and Google MDM, including modern device-management practices and automation of provisioning.

The position operates and improves Microsoft 365, Google Workspace and Slack, including system integrations. It leads vendor coordination for IT infrastructure projects across requirements definition, design, construction and operations, and handles troubleshooting, maintenance and improvements. Help desk services are outsourced to a BPO provider. Additional work includes office-network design and operations, vendor coordination for L3 switches, firewalls and VPNs, troubleshooting based on the OSI reference model and TCP/IP, evaluation of new and existing services and tools, license management, cost reviews and replacement projects.

Applicants are expected to have experience designing, building, operating and improving zero-trust security infrastructure; managing identity and account lifecycles based on Entra ID; configuring SAML and OIDC SSO, Platform SSO, WHfB and certificates; managing Mac, Windows, iOS and Android devices with MDM; coordinating with internal departments to solve technical issues; leading vendors; and implementing or operating company-wide SaaS platforms such as Google Workspace and Microsoft 365. Practical network skills, Infrastructure as Code experience on AWS, GCP or Azure, and the ability to read English documentation or investigate overseas products are listed as preferred skills.

The role belongs to the Service Management Group in the IT Strategy Division, an organization of approximately five people. Projects are handled by teams of one or two. Career paths may include group management, company-wide IT strategy and business problem solving, or advanced IT and security specialization.

Employment is permanent with a super flextime system and no core hours. The posting states that remote work is available. Salary is listed at JPY 8,000,000–10,000,000 per year and includes a fixed overtime allowance for 45 hours per month, except where the hire is classified as a managerial supervisor. Salary is revised twice yearly, with an annual performance-linked payment and commuting costs covered up to JPY 50,000 per month. Benefits include social insurance, a taxi subsidy, a monthly allowance, child allowance, welcome lunches, club activities and casual clothing. Holidays include weekends, public holidays, paid leave, year-end and New Year leave, bereavement leave, nursing-care leave and child-care nursing leave.