IT Systems Administrator
Listed on 2026-10-15
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IT/Tech
Systems Administrator, Windows Server, Disaster Recovery IT, IT Support
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IT Systems AdministratorFull Time Melville, NY, US
30+ days ago Requisition
Salary Range: $90,000.00 To $ Annually
Position Summary
The IT Systems Administrator is responsible for the administration, maintenance, security, and optimization of the organization's IT infrastructure. This role supports Microsoft 365, Azure, servers, networking, endpoint management, cybersecurity tools, and user access management while ensuring system availability and reliability.
The ideal candidate has 4–7 years of systems administration experience and possesses strong troubleshooting, communication, and technical skills.
Key Responsibilities
Infrastructure Administration
- Administer Windows Server environments and related services.
- Manage Active Directory and Microsoft Entra (Azure AD).
- Monitor system performance and server health.
- Perform system updates, patching, and maintenance.
- Manage and Coordinate activities with the MSP
Microsoft 365 Administration
- Manage Microsoft 365 services including:
- Exchange Online
- Microsoft Teams
- SharePoint Online
- One Drive
- Create and manage user accounts, groups, and licenses.
- Troubleshoot mail flow, Teams, and collaboration platform issues.
- Support Microsoft Azure infrastructure and services.
- Manage virtual machines, storage accounts, and networking components.
- Monitor Azure resources and implement security best practices.
- Manage Windows workstations and mobile devices.
- Utilize Microsoft Intune for device enrollment and policy management.
- Deploy software updates and security configurations.
Security & Compliance
- Implement and maintain cybersecurity controls.
- Administer security platforms such as:
- Zscaler
- Endpoint Detection & Response (EDR) solutions
- Assist with vulnerability remediation and compliance initiatives.
- Coordinate activities with the MSSP
Backup & Disaster Recovery
- Monitor backup solutions and storage systems.
- Monitor backup testing and recovery procedures.
Support & Troubleshooting
- Provide Level 2 and Level 3 technical support.
- Troubleshoot:
- Servers
- Networking
- Microsoft 365
- Security solutions
- Escalate complex issues when necessary.
Documentation
- Maintain technical documentation, diagrams, and procedures.
- Document system changes and operational processes.
- Develop knowledge base articles for internal support teams.
Required Qualifications
Education
- Bachelor's degree in Information Technology, Computer Science, or related field preferred.
- Equivalent experience may be considered.
Experience
- 4–7 years of Systems Administration experience.
- Experience supporting Microsoft 365 environments.
- Experience with Active Directory and Microsoft Entra .
- Experience with Windows Server administration.
- Familiarity with Azure cloud services.
Technical Skills
- Microsoft 365 Administration
- Active Directory / Entra
- Windows Server
- VMware or Hyper-V
- Power Shell scripting
- TCP/IP, DNS, DHCP
- Backup and recovery solutions
- Security tools and best practices
Preferred Certifications
- Microsoft 365 Certified:
Administrator Expert - CompTIA Network+
- CompTIA Security+
- ITIL Foundation
- Strong analytical and troubleshooting skills
- Excellent communication and customer service skills
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