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Microsoft 365 Administrator

NEXUS CORPORATION · Tokyo

Apply by 24 Nov 2026

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Job Description

We are looking for an experienced Microsoft 365 Administrator with 10+ years of experience to provide complete administration and support of the Microsoft 365 environment and its capabilities. Job Responsibilities: - Provide complete administration of the Microsoft 365 environment and its capabilities. - Support messaging and productivity environments in the Microsoft 365 Cloud. - Perform testing, implementation, and deployment of Exchange Online. - Support the building, upgrade, maintenance, migrations, and deployments related to Microsoft Exchange. - Provide primary on-site support for Microsoft 365 issues. - Query the Exchange environment using the Office 365 Command Online tool. - Implement and support security policies, such as data retention. - Manage problem resolution to a satisfactory completion by keeping abreast of assigned tickets and following the proper escalation processes via the ticketing system. - Review, test, and make recommendations for standard email practices. - Support anti-spam filtering, logging, email tracking, and transport rules. - Support Single Sign-On using Active Directory Federation Services with Multi-Factor Authentication. - Perform scripting administration tasks and reporting using PowerShell. - Develop scripts for automating processes within the environment. - Help ensure team performance meets or exceeds defined Service Level Agreements. - Perform migrations and deployments related to the building, upgrade, and maintenance of MS Exchange. - Conduct monthly audits of the Active Directory environment to reconcile users. - Consult with Integrated Product Teams (IPT) and product owners to establish better process flow to mitigate incidents and tasks. - Manage users' mobile devices through Mobile Device Management (MDM) solutions using MS Intune. - Troubleshoot ActiveSync issues with mobile devices. - Troubleshoot issues with Microsoft 365 Teams. - Create security and distribution groups in Active Directory. - Update, contribute to, and maintain local SharePoint team sites as procedures and documentation change. - Create user guides and instructional documents for end users. - Manage user onboarding and off boarding. - Assign group and file-level permissions in Active Directory. - Train local support team members, Relationship Managers, and Data Analysts on incident origination processes and modifications implemented within the ticketing system.

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NEXUS CORPORATION logo

NEXUS CORPORATION

Tokyo

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