Millennium Corporation

System Administrator

Job Locations US-SC-Charleston
Posted Date 11 hours ago(11/19/2025 8:34 PM)
Job ID
2025-3007
Worker Category
Active Full Time Regular
Clearance Required
Top Secret

Overview

For two decades, Millennium Corporation has been operating on the leading edge of cybersecurity. Our elite team of more than 300 experts has an unparalleled record of performance supporting Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering. With the largest contingent of contracted Red Team operators in the DoD, we provide an unmatched level of threat intelligence and battle-tested experience for customers in both the DoD and federal civilian markets.

What We Believe

Millennium is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law.

Responsibilities

Millennium Corporation is hiring a Systems Administrator to work in Charleston, SC. The candidate must have an active Top Secret clearance. 

 

 

Duties-

  • Installation of hardware, software, systems upgrades, network accounts, network security, and web page design, interface and updates, and local system design documentation

  • Experience maintaining, troubleshooting, and implementing network security tools including firewalls, anti-virus, and intrusion detection services

  • Capable of training staff on software applicable to their position, assisting customers with information technology, monitoring system configuration (hardware and software), and providing instruction on computers and applications

  • Windows OS Basics - Install, configure, and troubleshoot Windows and/or Server
  • Active Directory Basics - Logging in users, resetting passwords, understanding user accounts

  • Basic Networking - IP addresses, DNS, and how network issues affect virtual desktops

  • Troubleshooting skills  - use log files, event history, and version control to trace issues

  • Patch Management - applying updates to fix security vulnerabilities, bugs, and performance issues

  • End User Device Management

Minimal travel – three or four week-long trips per year CONUS

Qualifications

  • Candidate must have an active Top Secret clearance.
  • Bachelor’s degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems or higher (BS, BA, or Associate of Science (AS) shall be from an Accreditation Board for Engineering and Technology (ABET) accredited program.)
  • Minimum seven (7) years experience with Master’s or 11 years with Bachelor’s degree of professional experience in systems administration to include supporting daily operational requirements of computer network systems including workstation, file servers, and web servers

  • Cybersecurity workforce certification/training in accordance with DoD 8570.1M and subsequent DoD 8140 manual, as applicable. (i.e. CompTIA A+ CE, Network+ CE, Security+ CE, CISSP, and GSEC)

Business Development

Assist with Business Development activities as required to support Millennium's strategic business objectives, which may include but not limited to participation in technical interviews, creation of technical documentation, general proposal writing support and proposal color reviews.

Physical Requirements

  • Must be comfortable with prolonged periods of sitting at a desk and working on a computer.
  • Must be able to lift up to 10-15 pounds at a time.

Travel Requirements

Minimal travel – three or four week-long trips per year CONUS 

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