Systems Administrator

Description

We are seeking a Senior Systems Administrator to play a key role in maintaining, securing, and optimizing our client's enterprise infrastructure. The ideal candidate is a hands-on technical professional who enjoys solving complex infrastructure challenges, improving automation, and helping drive modernization across cloud and on-premises systems.

Responsibilities

• Administer and support Microsoft 365 services including Exchange Online, Entra ID (Azure AD), Teams, SharePoint Online, and OneDrive.

• Manage endpoint deployment, configuration, compliance, and lifecycle management using Microsoft Intune and MDM solutions.

• Maintain and troubleshoot Windows Server infrastructure, Active Directory, Group Policy, DNS, DHCP, and file services.

• Support and administer Linux servers for application hosting, monitoring, and system maintenance.

• Implement and maintain security controls across the environment, including MFA, Conditional Access, endpoint protection, vulnerability remediation, and identity governance.

• Monitor infrastructure performance, availability, and security utilizing enterprise monitoring and logging tools.

• Participate in security audits, risk assessments, incident response, and remediation efforts.

• Manage user provisioning, access control, and role-based security policies.

• Assist with backup, disaster recovery, and business continuity planning.

• Develop and maintain system documentation, procedures, and technical standards.

• Support infrastructure projects including migrations, upgrades, cloud adoption initiatives, and automation efforts.

• Collaborate with vendors, business stakeholders, and internal IT teams to resolve issues and implement new technologies.

Requirements

• Experience in systems administration within a Microsoft-centric environment.

• Strong experience administering Microsoft 365.

• Hands-on experience with Microsoft Intune and Mobile Device Management (MDM).

• Experience supporting hybrid cloud environments and identity management.

• Strong knowledge of Active Directory, Group Policy, DNS, DHCP, and Windows Server administration.

• Experience securing enterprise environments through MFA, Conditional Access, endpoint protection, and vulnerability management.

• Working knowledge of Linux administration (Ubuntu, Red Hat, Rocky Linux, or similar).

• Experience with PowerShell scripting and automation.

• Strong troubleshooting and root-cause analysis skills.

• Excellent communication and documentation abilities.

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