IT Systems Administrator

EPSG, LLC • Full-time • Melville, New York, United States • $90k - $110k / year • 19h ago

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 ID (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
OneDrive
Intune

Create and manage user accounts, groups, and licenses.
Troubleshoot mail flow, Teams, and collaboration platform issues.

Cloud Administration

Support Microsoft Azure infrastructure and services.
Manage virtual machines, storage accounts, and networking components.
Monitor Azure resources and implement security best practices.

Endpoint Management

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.
Manage Multi-Factor Authentication (MFA).
Administer security platforms such as:

Microsoft Defender
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.
Document disaster recovery processes.

Support & Troubleshooting

Provide Level 2 and Level 3 technical support.
Troubleshoot:

Servers
Networking
Microsoft 365
Cloud services
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 ID.
Experience with Windows Server administration.
Familiarity with Azure cloud services.

Technical Skills

Microsoft 365 Administration
Microsoft Intune
Active Directory / Entra ID
Windows Server
Azure Administration
VMware or Hyper-V
PowerShell scripting
TCP/IP, DNS, DHCP
Backup and recovery solutions
Security tools and best practices

Preferred Certifications

Microsoft Certified: Azure Administrator Associate
Microsoft 365 Certified: Administrator Expert
CompTIA Network+
CompTIA Security+
ITIL Foundation

Key Competencies

Strong analytical and troubleshooting skills
Excellent communication and customer service skills
Ability to manage multiple priorities
Attention to detail
Team-oriented mindset
Strong documentation practices

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