Systems Administrator: Secure, Scalable IT Infrastructure

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

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.