Senior Systems Administrator

Eagle Rock Properties • Plainview, NY

6d • $120,000 - $130,000

About The Position

The successful candidate will play a key role in the implementation, migration, security, and support of both our on-premises and cloud-based services. The candidate will collaborate with senior IT and executive staff on all security and cloud-based initiatives.

Requirements

• 5+ years of experience in IT systems and Microsoft 365 administration.
• 5+ years of experience with Active Directory, Entra ID, Intune, PowerShell, and automation.
• Strong grasp of cybersecurity fundamentals and best practices especially NIST-CSF.
• Demonstrated ability to lead or contribute to migration projects (AD → Entra ID, SMB → SharePoint).
• Familiar with migration to phish resistant MFA technologies, passkeys/FIDO2.
• Experience with SAML / OAuth2 / FIDO2 / Passkey authentication and Conditional Access policies.
• Familiarity with NIST CSF controls.
• Proven problem-solving skills, attention to detail, and proactive mindset.
• Excellent communication and collaboration abilities.

Nice To Haves

• CompTIA (Sec+, CySA, Cloud+)
• Microsoft (MS-102, MD-102, SC-300, AZ-104)

Responsibilities

• Implement and maintain Microsoft 365 security and compliance configurations across Intune, Entra ID, and related services.
• Serve as Tier 2 / escalation support for complex and high-impact technical issues.
• Administer and optimize SharePoint, OneDrive, Teams, and Exchange Online environments.
• Develop and enforce device, application, and configuration policies through Intune and Entra ID.
• Manage data governance, classification, discovery, and protection using Microsoft Purview tools.
• Implement and manage modern authentication standards including FIDO2, passkeys, and Conditional Access policies.
• Ensure alignment with organizational IT standards, policies, and security baselines.
• Maintain and publish clear, detailed documentation for configurations, policies, and operational procedures.
• Contribute to continuous security hardening and improvement of Microsoft Secure Score.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed