Onsite IT Specialist: Microsoft 365 & Security Expert

Eastern; Alpharetta (GA); On-site; USD 95,000 - 125,000; Full time

Benefits offered by this job

Up to 85% company-paid medical, dental

401(k) with 100% company match up to 5

DPTO discretionary time off

Employee discounts via Plum Benefits

ESOP

Job summary

Eastern Companies is seeking an IT Specialist to own and administer our Microsoft 365 environment across offices and job sites. You will oversee identity, access, device security, network services, and server administration to ensure reliability and compliance with federal contracting requirements.

You will help maintain documentation and evidence for NIST SP 800-171 and CMMC Level 2, coordinating with vendors and supporting after-hours on-call rotations.

Qualifications

• Four or more years administering Microsoft 365 and Windows environments.
• Tenant-level Entra ID and Intune administration experience.
• Experience with Exchange Online and SharePoint Online.
• PowerShell scripting for automation and admin tasks.
• Networking basics including firewalls, VPNs, DNS.
• Experience with endpoint protection and vulnerability management tools.
• Strong written communication; able to brief executives.
• Able to pass a background check for access to CUI.
• U.S. person for authorized access to controlled information.

Responsibilities

• Administer Microsoft 365, Exchange Online, SharePoint Online, Teams, and OneDrive.
• Manage Microsoft Entra ID and licenses, MFA, conditional access, lifecycle.
• Implement phishing-resistant or hardware-key authentication for privileged accounts.
• Administer Intune for device enrollment, config, compliance, patches.
• Manage mobile device fleet and MDM platform, carrier accounts.
• Maintain core network services: firewalls, VPNs, DNS, certificates.
• Support Windows and Linux servers: patching, backups, restoration testing.
• Deploy endpoint detection and antivirus across devices.
• Conduct vulnerability scans and coordinate remediation.
• Onboard/offboard employees; manage IT asset inventory.
• Automate tasks with PowerShell and maintain logs for SIEM.
• Maintain NIST SP 800-171 and CMMC Level 2 compliance evidence.

Skills

Microsoft 365 Admin

Entra ID admin

Intune admin

Exchange Online

PowerShell scripting

Networking fundamentals

EDR & vulnerability tools

Written communication

Background check readiness

Education

Microsoft 365 Administrator Expert (MS-102)

Microsoft 365 Endpoint Administrator Associate (MD-102)

CompTIA Security+

Tools

Windows Server

Linux environments

SIEM (Wazuh)

Python scripting

Job description

Eastern Companies is seeking an IT Specialist to own and administer our Microsoft 365 environment across offices and job sites. You will oversee identity, access, device security, network services, and server administration to ensure reliability and compliance with federal contracting requirements.

You will help maintain documentation and evidence for NIST SP 800-171 and CMMC Level 2, coordinating with vendors and supporting after-hours on-call rotations.