Systems Administrator – Active Directory & Microsoft 365

Phaxis; New York (NY); On-site; USD 90,000 - 130,000; Full time

Job summary

Phaxis in New York seeks a skilled IT Administrator to manage and secure Windows infrastructure, focusing on Active Directory, Exchange, and Microsoft 365 with responsibilities spanning user management, mailbox administration, licensing, and access controls.

You will develop PowerShell scripts to automate routine tasks, oversee Intune-based patching, monitor system health, and troubleshoot authentication and connectivity issues.

Qualifications

• Experience administering AD, Exchange, and O365 environments.
• Proficient in scripting with PowerShell and automating routine tasks.

Responsibilities

• Administer Active Directory and related objects (users, groups, permissions).
• Manage Microsoft Exchange mail flow, mailboxes, and groups.
• Oversee Microsoft 365 licensing, accounts, and access security.
• Develop PowerShell scripts to automate admin tasks.
• Manage Windows endpoint patching via Intune and monitor systems.
• Troubleshoot connectivity, authentication, and service issues across services.
• Enforce security and compliance policies across AD, Intune, and M365.
• Support upgrades, migrations, deployments, and daily admin work.

Skills

Active Directory

PowerShell

Exchange Admin

Microsoft 365 / O365

Intune

Group Policy

Security & Compliance

Troubleshooting

Tools

Group Policy

Job description

• Administer and maintain Active Directory, including user accounts, groups, computers, permissions, and Group Policy.
• Manage Microsoft Exchange, including mailboxes, distribution groups, permissions, and email-related issues.
• Administer Microsoft 365 (O365), including user accounts, licensing, security, and access management.
• Develop and maintain PowerShell scripts to automate administrative tasks and system processes.
• Manage Windows endpoint patching and updates through Microsoft Intune.
• Monitor and troubleshoot Windows systems, Microsoft 365 services, authentication, and connectivity issues.
• Implement and maintain security and compliance policies across Active Directory, Intune, and Microsoft 365.
• Support infrastructure upgrades, migrations, deployments, and day-to-day system administration activities.