Systems Administrator

goodwillmiddletn; Nashville (TN); On-site; USD 80,000 - 110,000; Full time

Job summary

Lifsey-IT is seeking a Systems Administrator to manage cloud, on-premises, and hybrid IT infrastructure with emphasis on Microsoft Azure, Entra ID, Windows Server, and Active Directory. This role also covers virtualization, storage, backups, and Microsoft 365 support, reporting to senior IT staff.

The position involves infrastructure migrations, security operations coordination, and maintaining comprehensive documentation.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, or related field preferred.
• Two or more years of experience in systems administration, cloud administration, network administration, or a similar technical role.

Responsibilities

• Administer and troubleshoot Microsoft Azure, Entra ID, Windows Server, Active Directory, Group Policy, DNS, and DHCP.
• Maintain and support on-premises and hybrid infrastructure including virtualization and storage.
• Support day-to-day network and security ops with the Network and Security Analyst.
• Monitor system health, backups, logs, and critical infrastructure services.
• Create technical documentation, runbooks, and knowledge articles.

Skills

Windows Server

Active Directory

Group Policy

DNS

DHCP

Azure

Entra ID

Hybrid infrastructure

Troubleshooting

Documentation

Education

Bachelor's degree in IT/CS

Tools

HaloITSM

Microsoft 365

Job description

Job Location

Lifsey-IT

Job Summary

The Systems Administrator maintains and supports the organization's cloud, on-premises, and hybrid IT infrastructure, with primary responsibility for Microsoft Azure, Microsoft Entra ID, Windows Server, Active Directory, virtualization, storage, backups, and related systems. The role also provides infrastructure-level support for Microsoft 365 and supports day-to-day network and security operations in coordination with other IT team members.

The Systems Administrator serves as an escalation point for complex infrastructure issues, supports technology projects, implementations, and migrations, and maintains accurate technical documentation and knowledge resources.

The Systems Administrator will promote a positive work environment that celebrates our vision, mission, and core values of Teamwork, Respect, Uprightness, and Empowerment.

Job Description

Essential Functions

• Administer and troubleshoot Microsoft Azure, Microsoft Entra ID, Windows Server, Active Directory, Group Policy, DNS, DHCP, and hybrid identity services.
• Maintain and support servers, virtualization platforms, storage, and related on-premises infrastructure.
• Support day-to-day network and security operations in coordination with the Network and Security Analyst, including network health monitoring and troubleshooting of switches, firewalls, wireless networks, VLANs, VPNs, and connectivity; assist with more complex network and security implementations as needed.
• Monitor system health, performance, capacity, backups, logs, and critical infrastructure services.
• Perform patching, upgrades, vulnerability remediation, system hardening, and lifecycle maintenance.
• Manage backup operations and support documented recovery and disaster recovery testing.
• Provide infrastructure-level support for Microsoft 365 in coordination with the Microsoft 365 Architect.
• Serve as an escalation point for complex server, identity, cloud, network, and infrastructure issues.
• Use HaloITSM to document and resolve incidents and service requests and to maintain useful knowledge articles.
• Participate in infrastructure implementations, migrations, upgrades, and technology refresh projects.
• Maintain system configurations, procedures, diagrams, runbooks, and change documentation.
• Work with internal IT teams, vendors, and service providers to resolve issues and improve reliability, security, and operational efficiency.
• Provide technology and network support at organizational locations as needed and perform other related duties assigned by management.

Minimum Qualifications

Required Skills

Education

Bachelor's degree in Information Technology, Computer Science, or related field preferred. Relevant technical training, certifications, and professional experience may be considered in place of a four-year degree.

Experience

• Two or more years of experience in systems administration, cloud administration, network administration, or a similar technical role.
• Hands-on experience supporting Microsoft Azure, Microsoft Entra ID, Windows Server, Active Directory, virtualization, networking, backups, and hybrid infrastructure.

Knowledge / Skills

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

Working knowledge of Microsoft Azure, Microsoft Entra ID, and hybrid identity.

Experience supporting network infrastructure, including switches, firewalls, wireless networks, VLANs, VPNs, and TCP/IP.

Knowledge of backup and recovery, monitoring, patching, and infrastructure security practices.

Strong troubleshooting and analytical skills for resolving complex technical issues.

Ability to create clear technical documentation, runbooks, and knowledge articles.

Ability to work independently, collaborate with IT teams and vendors, and manage changing priorities.

Effective verbal, written, and interpersonal communication skills.

Ability to travel to other organizational locations as needed.