Find & Apply For Cyber / Information Security Engineer / Analyst Jobs in Murfreesboro, Tennessee

JOB SUMMARY

We are seeking a Systems & Security Administrator to support and maintain the company's IT infrastructure, cybersecurity tools, Microsoft 365 environment, and business systems. This role serves as a technical resource for advanced support issues, systems administration, security monitoring, infrastructure maintenance, and security operations while ensuring reliable and secure technology services across the organization. The Systems & Security Administrator will work closely with IT leadership to support existing systems, improve operational processes, document critical infrastructure, and assist in the long-term management and continuity of key technology platforms. This position requires strong technical troubleshooting skills, attention to detail, a security-focused mindset, and a commitment to maintaining accurate documentation and knowledge sharing. A primary responsibility of this role is documenting infrastructure, administrative processes, system configurations, and support procedures to ensure operational continuity, cross-training, and long-term supportability of all business-critical systems.

KEY RESPONSIBILITIES

Systems Administration Administer and maintain Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, and related services. Monitor and maintain physical and virtual server infrastructure, including Microsoft and Linux-based systems. Support Microsoft 365 services, including Exchange Online, SharePoint, Teams, Entra ID (Azure Active Directory), and related cloud services. Manage user accounts, permissions, security groups, and access controls. Perform system updates, patch management, and routine maintenance activities. Maintain and verify backup and disaster recovery processes. Monitor system performance to ensure high availability, reliability, and uptime.

Security Administration:

Monitor and investigate security alerts and events generated through security monitoring platforms. Assist with vulnerability management activities, including vulnerability scanning, remediation tracking, and security patch validation. Support endpoint security, access control management, multi-factor authentication, and security hardening initiatives. Assist in responding to security incidents and conducting root cause investigations. Recommend improvements to strengthen the organization's security posture and reduce operational risk.

Infrastructure & Network Support:

Troubleshoot and resolve complex server, network, and infrastructure-related issues. Coordinate firewall, VPN, and network-related requests with internal teams and external service providers. Support virtualization platforms and associated infrastructure. Assist with website hosting, system integrations, and business-critical applications. Maintain awareness of infrastructure dependencies and ensure systems are properly documented.

Advanced Technical Support:

Serve as an escalation point for Tier 3 technical issues that cannot be resolved by Help Desk personnel. Troubleshoot complex hardware, software, network, cloud, and application issues. Provide technical guidance and mentoring to junior IT staff when needed. Support after-hours maintenance, upgrades, and critical incident response as required.

Documentation & Knowledge Transfer:

Create and maintain comprehensive technical documentation for systems, servers, applications, security tools, network infrastructure, and operational processes. Develop and maintain system inventories, network diagrams, recovery procedures, support guides, and configuration documentation. Participate in knowledge transfer activities to ensure critical systems and processes can be effectively supported by multiple team members. Assist with infrastructure reviews, audits, and transition planning to eliminate single points of failure and strengthen business continuity.

Projects & Continuous Improvement:

Participate in IT infrastructure, cybersecurity, application, and business system projects. Support technology migrations, upgrades, implementations, and process improvement initiatives. Track assigned work through Jira and provide status updates on project and operational activities. Identify opportunities for automation, efficiency improvements, and infrastructure modernization.

REQUIRED QUALIFICATIONS

Minimum of three (3) years of experience in Systems Administration, Network Administration, Information Security, or a related IT role. Experience administering Windows Server environments. Experience with Active Directory, DNS, DHCP, Group Policy, and user administration. Experience supporting Microsoft 365 environments. Strong troubleshooting skills across servers, endpoints, networking, and cloud services. Understanding of cybersecurity principles, system hardening, and vulnerability management. Experience creating and maintaining technical documentation. Excellent communication, organizational, and problem-solving skills. Ability to work independently and manage multiple priorities.

PREFERRED QUALIFICATIONS

Experience with Microsoft Entra ID (Azure AD), Exchange Online, SharePoint, Teams, and Intune. Experience supporting Linux operating systems. Experience with virtualization platforms such as Hyper-V, VMware, or Proxmox. Experience with security monitoring and management tools such as Wazuh, Tactical

RMM, SIEM

platforms, or similar technologies. Experience with firewall administration and VPN technologies. PowerShell or other scripting experience. Familiarity with cybersecurity frameworks and industry best practices. Experience supporting transportation, logistics, manufacturing, or operational business environments.

WORK LOCATION & SCHEDULE

This is a full-time, on-site position located in Murfreesboro, Tennessee . Regular in-person attendance is required to support company infrastructure, hardware deployments, security operations, end-user support activities, and collaboration with internal departments. Due to the nature of the role and responsibilities supporting business-critical systems, this position is not structured as a remote or hybrid role. Occasional after-hours or weekend work may be required for maintenance activities, upgrades, project implementations, or emergency response situations.

PHYSICAL REQUIREMENTS

Ability to lift and move computer equipment and related hardware weighing up to 50 pounds. Ability to work in office, server room, warehouse, and operational environments as needed. Ability to perform system installations, equipment setup, and cabling activities when required.

Job Type:

Full-time Pay:

$21.00 - $29.00 per hour

Benefits:

401(k) Dental insurance Health insurance Life insurance Paid time off Vision insurance

Work Location:

In person