Systems Administrator — Cloud & On-Prem (DoD/IC)

TENAX Technologies; Washington (District of Columbia); On-site; USD 90,000 - 120,000; Full time

Job summary

TENAX Technologies is seeking a Systems Administrator to support mission-critical Navy programs in the Washington, DC area. The selected candidate will administer, maintain, and secure enterprise infrastructure across on-premises, hybrid, and AWS cloud environments.

This role supports critical DoD and IC missions, ensuring availability, security, and compliance while documenting systems and enabling modernization efforts through migrations and cloud initiatives.

Qualifications

• Experience administering Windows, Linux, and UNIX-based servers and networks.
• Experience managing AWS cloud infrastructure, services, networking, and security.
• Experience with system monitoring, patch management, and performance tuning.
• Experience implementing DISA STIGs and cybersecurity compliance requirements.
• Active Top Secret clearance with TS/SCI eligibility.
• Current DoD 8570/8140 IAT Level II or III certification or equivalent.
• Minimum 3 years of enterprise systems administration experience.

Responsibilities

• Administer and maintain Windows, Linux, and UNIX-based servers and enterprise systems.
• Manage AWS cloud infrastructure, services, networking, and security.
• Monitor system performance, troubleshoot, and resolve server/storage/network/application issues.
• Implement security patches, system hardening, and DISA STIG compliance.
• Support system modernization, migrations, upgrades, and cloud initiatives.
• Ensure system availability, integrity, confidentiality, and compliance with cybersecurity requirements.
• Maintain technical documentation and support operational and maintenance activities.

Skills

Windows Server

Linux

UNIX

AWS Cloud

Security patching

DISA STIGs

Documentation

Troubleshooting

Job description

TENAX Technologies is seeking a Systems Administrator to support mission-critical Navy programs in the Washington, DC area. The selected candidate will administer, maintain, and secure enterprise infrastructure across on-premises, hybrid, and AWS cloud environments.

This role supports critical DoD and IC missions, ensuring availability, security, and compliance while documenting systems and enabling modernization efforts through migrations and cloud initiatives.