The Systems Administrator, Infrastructure is responsible for the administration, maintenance, support, and optimization of core enterprise services and operational technologies. This role serves as a technical resource for Microsoft 365, Exchange, Configuration Management Database (CMDB), print management, eFax services, and related infrastructure platforms. The position provides Tier 2 operational support, resolves escalated technical issues, and ensures critical business systems remain secure, reliable, and highly available. The Systems Administrator works closely with Service Desk, Infrastructure, Security, and Engineering teams to maintain operational excellence while driving continuous service improvements across the enterprise.
- Administer and support Microsoft 365 services, including Exchange Online, Teams, SharePoint Online, OneDrive, and Entra ID.
- Manage Exchange Online and hybrid Exchange environments, including mail flow, distribution lists, shared mailboxes, and mailbox provisioning.
- Maintain enterprise print management solutions, including print servers, print queues, printer deployments, and print policies.
- Administer eFax platforms and related integrations to support secure document transmission and business workflows.
- Monitor system performance, availability, and capacity across supported platforms.
- Perform system maintenance, upgrades, patching, and configuration management activities.
- Administer and maintain the enterprise Configuration Management Database (CMDB).
- Serve as a Level 2 escalation point for technical issues unresolved by the Service Desk.
- Troubleshoot and resolve complex issues related to Microsoft 365, Exchange, print services, eFax solutions, and enterprise applications.
- Conduct root cause analysis and implement corrective actions to prevent recurring incidents.
- Provide technical guidance to Level 1 support personnel and contribute to knowledge base documentation.
- Participate in major incident response and service restoration activities.
- Support security and compliance initiatives including retention policies, email security, and identity governance.
- Administer and troubleshoot Teams collaboration services, SharePoint Online sites, and OneDrive storage issues.
- Maintain M365 operational standards and governance policies.
- Support Microsoft cloud initiatives and adoption programs.
- Assist with audits, vulnerability remediation, and policy enforcement activities.
- Maintain documentation for system configurations, procedures, and operational standards.
- Partner with Infrastructure, Network, Security, and End User Computing teams on operational initiatives.
- Identify opportunities to improve service reliability, efficiency, and user experience.
- Participate in projects involving Microsoft 365, messaging services, print management, eFax solutions, and asset management systems.
- Create and maintain technical documentation, procedures, and knowledge articles.
- Excellent written and oral communication skills
- Ability to meet deadlines and deliver high quality work in a fast-paced environment.
- Ability to work under pressure, with little or no supervision
- Strong team player with excellent problem-solving skills
- Excellent organizational and time management skills
- Strong troubleshooting and multi-tasking skills
- General knowledge of Android, Intune, and MDM tools
- Understanding of IT Service Management processes
Education and Experience:
- A degree or 2 - 4 years' systems administration experience.
- Minimum of 3 to 5 years' experience in a high profile and fast-paced Help Desk/Desktop Support environment
- An in-depth knowledge of relevant operating systems, applications, printers and other hardware required.
- Resolve service tickets or escalate to other support entities as needed and within SLA
- Ability to effectively and efficiently troubleshoot technical problems
- Advanced knowledge of current Microsoft desktop and server operating systems
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Lincare Holdings
Jul 03, 2026