Senior IT Administrator — Secret Clearance & Secure Infra

XTec Incorporated; Miami, Northern (FL, KY); Hybrid; USD 110,000 - 170,000; Full time

Job summary

XTec Incorporated in Miami, FL is seeking a Senior IT Administrator responsible for the design, administration, security, maintenance, and optimization of the company's enterprise IT infrastructure, including servers, storage, networks, and cloud services, to ensure availability and performance. This role leads infrastructure projects, provides advanced troubleshooting, enforces strict access controls, and supports security audits.

A U.S.

Qualifications

• Bachelor's degree or equivalent professional experience.
• Active U.S. Government Secret clearance (US Person).
• 4+ years of experience administering enterprise servers (Windows/Linux).
• Experience with regulated environments and ITAR/EAR compliance.

Responsibilities

• Infrastructure Management: Build, configure, deploy, and maintain servers and storage.
• Identity & Access Control: Administer directory services and group policies with strict access controls.
• Environment Administration: Manage on-premises and cloud infrastructure and backups.
• Lifecycle & Performance: Maintain Windows and Linux servers and server-based apps.
• Vulnerability & Patch Management: Direct centralized patching and remediation.
• Security & Auditing: Oversee endpoint protection and security monitoring.
• Network Operations: Manage LAN/WAN/VPN and core network services.
• Project Leadership: Lead infrastructure design and requirement reviews.

Skills

Windows server administration

Linux administration

Cloud infrastructure

Identity & access management

Security compliance

Networking

Vulnerability management

Active Directory

Scripting

Education

Bachelor's degree in IT/CS

Tools

Hypervisors (VMware/Hyper-V)

Backup/Restore solutions

EDR/AV tools

DNS/DHCP/NTP

Job description

XTec Incorporated in Miami, FL is seeking a Senior IT Administrator responsible for the design, administration, security, maintenance, and optimization of the company's enterprise IT infrastructure, including servers, storage, networks, and cloud services, to ensure availability and performance. This role leads infrastructure projects, provides advanced troubleshooting, enforces strict access controls, and supports security audits.

A U.S.