Active Directory Engineer
NEXUS CORPORATION · Tokyo
Apply by 24 Nov 2026
ApplyJob Description
Seeking a skilled Active Directory / Microsoft 365 Engineer with expertise in Azure AD, PowerShell, AD migration, ADFS, IAM, and hybrid environments. Hands-on experience with Quest/ADMT is mandatory. Key Responsibilities: - Support the Active Directory environment on-premises and in the Cloud (Microsoft 365). - Manage problem resolution to satisfactory completion by keeping abreast of assigned tickets and following the proper escalation processes via the ticketing system. - Familiar with application monitoring tools, reviewing log files, and be available on occasion for off-hours emergency support for critical applications. - Support Single Sign-On using Active Directory Federation Services with Multi-Factor Authentication. - Ensure that performance meets or exceeds defined Service Level Agreements. - Perform migrations and deployments related to the building, upgrade, and maintenance of MS Exchange. - Monthly audits on the Active Directory environment to reconcile users. - Consult with Integrated Product Teams (IPT) and product owners to establish better process flow to mitigate incidents/tasks. - Troubleshoot active sync issues with mobile devices. - Troubleshoot issues with Microsoft 365 Teams. - Create security and distribution groups in Active Directory. - Update, contribute, and maintain local SharePoint team sites as procedures/documentation change. - Follow user guides and instructional documents for end-users. - In charge of onboarding/offboarding users. - Assigned 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. - Designing, Configuring, and maintaining Active Directory services on Windows Server 2003, 2008, 2012, 2016, 2019 DC. - Remediation of domains, Domain controllers build, Functional level upgrades. - Strong experience in infrastructure assessment, solution design, architecture, planning, and execution for Active Directory domain migrations. - Assessment of all domains and Forest along with IIS, File, Print, Database servers, etc. - Implementation of Azure AD Connect, Conditional Access policies, MFA, FIDO Authentication, Windows Hello for Business setup. - Gather migration requirements interacting with multiple stakeholders and Application Owners. - Managing Identity and Access Management of Azure subscriptions, Azure AD, Azure AD Application Proxy, Azure AD PTA. - Design and develop specialized automation tools, scripts, and processes for administration and performance monitoring. - Experience in syncing objects, users, groups, workstation in Hybrid approach. - Troubleshooting AD Domain migration related issues and suggesting best practices. - End-to-end support for migration of all directory objects.
NEXUS CORPORATION
Tokyo
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