Red Team Security Engineer III

millgroupinc· Active Full Time Regular
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📍 Colorado Springs, CO, USOTHER💰 USD 175K–185K

About this role

Overview

Millennium is proud to be part of the Markon enterprise, a network of specialized organizations united in support of critical national security missions. This partnership strengthens our ability to deliver results by expanding our technical depth, operational reach, and access to a broader bench of proven experts, ensuring our customers continue to receive best-in-class cybersecurity support.Since 2004, Millennium has operated at the forefront of cybersecurity. Our elite team of over 300 professionals brings an unmatched record of performance across Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering. As home to the largest contingent of contracted Red Team operators supporting the Department of Defense, Millennium delivers unparalleled threat intelligence and battle-tested expertise to both DoD and federal civilian customers.

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 Red Team Security Engineer III to work in Colorado Springs, CO. ALL candidates MUST have an active TS/SCI security clearance to qualify for consideration.

 

  • The qualified candidate will support a Red Team Aggressor Mission conducting Cyber Threat emulation.
  • Activities include supporting exercises, operational assessments, Test and Evaluation events,and other training events.
  • Provide an intelligence based cyber threat emulation team acting as a cyber oppositional force to evaluate a system, system of systems, or enterprise environment's ability to continue to operate in cyber contested environments.
  • Work with client to create standard operating procedures for Cyber Red Team operations. Actively assist in training of new Red Team operators assigned to client.

Three must haves- 

  • Previous Government Red Team experience
  • Ability to create procedural documentation and standard operating procedures.
  • Passion for Red Team work, and self start ability to solve complex cyber security problems.

Qualifications

  • ALL candidates MUST have an active TS/SCI security clearance to qualify for consideration.
  • BS and 6-8 years of experience or 2 additional years if only AA or 4 additional years if no degree.
  • IAT Level II: Sec +, OSCP, Sec X, RTJC, or other cyber security certificate is desired

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

15-30%

COMPENSATION:

$175K-$185K

 

The salary range provided for this position is intended as a general guideline and does not guarantee a specific salary or compensation amount. Final compensation will be determined based on a variety of factors, including, relevant education, experience, knowledge, skills, and abilities.

Frequently Asked Questions

What is the salary for the Red Team Security Engineer III role at millgroupinc?
The listed salary for this Red Team Security Engineer III position at millgroupinc is USD 175K–185K. This is an OTHER role.
Where is the Red Team Security Engineer III position at millgroupinc located?
This Red Team Security Engineer III role at millgroupinc is based in Colorado Springs, CO, US. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Red Team Security Engineer III role at millgroupinc full-time or part-time?
This is listed as a OTHER position. It is posted as a Red Team Security Engineer III role in the Active Full Time Regular department at millgroupinc.
Which team or department does the Red Team Security Engineer III at millgroupinc belong to?
This Red Team Security Engineer III position is part of the Active Full Time Regular department at millgroupinc. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Red Team Security Engineer III position at millgroupinc?
Click the "Apply Now" button on this page. You will be redirected to millgroupinc's official application portal hosted on icims where you can submit your application directly.
When was the Red Team Security Engineer III job at millgroupinc posted?
This Red Team Security Engineer III position at millgroupinc was posted on Aug 7, 2026. Apply as soon as possible — early applications are often reviewed first.
Red Team Security Engineer III
millgroupinc · 💰 USD 175K–185K
Apply for this role ↗

You'll be redirected to millgroupinc's official application page on icims.