System Administrator

Lumen Resources; Ormond Beach (FL); On-site; USD 65,000 - 90,000; Full time

Job summary

Lumen Resources is seeking a Systems Administrator to manage and support our critical technology infrastructure. You will maintain secure, reliable server, network, and communications environments while partnering with internal users and third-party vendors to ensure day-to-day business operations run efficiently.

Join us to oversee enterprise server and network environments, implement updates, troubleshoot complex issues, and support cybersecurity initiatives and disaster recovery planning.

Qualifications

• 3+ years administering enterprise server and network environments.
• Experience with Windows Server, Active Directory, and Microsoft 365 in enterprise setups.
• Strong networking knowledge: TCP/IP, VPNs, firewalls, SD-WAN.

Responsibilities

• Manage and maintain enterprise server infrastructure, ensuring systems remain secure, available, and optimized for business operations.
• Monitor network performance across LAN, WAN, VPN, wireless, and other connectivity environments.
• Install, configure, test, and deploy infrastructure updates, security patches, hardware replacements, and system enhancements.
• Troubleshoot complex server, network, and infrastructure issues and provide timely technical support.
• Administer user accounts, permissions, identity management, and security controls; support cybersecurity initiatives.
• Maintain backup, disaster recovery, and business continuity processes.
• Collaborate with vendors and external support teams to resolve escalated issues.
• Create and maintain technical documentation, system configurations, inventories, diagrams, and procedures.
• Evaluate infrastructure and recommend improvements for reliability, performance, scalability, and security.
• Support enterprise communication technologies, including business phone systems and related network infrastructure.

Skills

Windows Server

Active Directory

Microsoft 365

Networking fundamentals

VPNs

SD-WAN

Firewall concepts

Virtualization

Remote Desktop/Citrix

Tools

Hyper-V

VMware

Citrix

Remote Desktop Services

Job description

We're looking for a Systems Administrator to manage and support the organization's core technology infrastructure. This individual will be responsible for maintaining secure, reliable, and high-performing server, network, and communications environments while partnering with internal users and third-party vendors to ensure day-to-day business operations run efficiently.

What You'll Do

• Manage and maintain enterprise server infrastructure, ensuring systems remain secure, available, and optimized for business operations.
• Monitor network performance across LAN, WAN, VPN, wireless, and other connectivity environments while proactively identifying and resolving performance issues.
• Install, configure, test, and deploy infrastructure updates, security patches, hardware replacements, and system enhancements.
• Troubleshoot complex server, network, connectivity, and infrastructure-related issues while providing timely technical support to internal users.
• Administer user accounts, permissions, identity management, and security controls while supporting company cybersecurity initiatives and best practices.
• Maintain backup, disaster recovery, and business continuity processes to ensure critical systems and data remain protected.
• Partner with technology vendors, telecommunications providers, and external support teams to maintain infrastructure services and resolve escalated technical issues.
• Create and maintain technical documentation, system configurations, hardware inventories, network diagrams, and operational procedures.
• Evaluate existing infrastructure and recommend technology improvements that increase reliability, performance, scalability, and security.
• Support enterprise communication technologies, including business phone systems and related network infrastructure.

What We're Looking For

• 3+ years of experience administering enterprise server and network environments.
• Experience supporting Microsoft Windows Server, Active Directory, Microsoft 365, or comparable enterprise infrastructure platforms.
• Strong understanding of networking fundamentals, including TCP/IP, routing, switching, VLANs, VPNs, firewalls, SD-WAN, and network security principles.
• Experience configuring, monitoring, and troubleshooting network infrastructure and connectivity across multiple locations.
• Hands-on experience supporting virtualization, remote access solutions, or remote desktop environments such as Microsoft Remote Desktop Services or Citrix.

Join us at Lumen Resources, where your expertise will contribute to our growth, and you'll have the opportunity to have fun and thrive alongside a dynamic group of professionals.

Lumen Resources is an Equal Opportunity Employer. Don't hesitate to get in touch with our team for more information.