Red Team Security Engineer II
Millennium Corporation · Huntsville, AL, US · United States · On-site
Pay: USD 135,000 – 141,000 a year
Posted Oct 2, 2026
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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.For more than two decades, 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 is hiring Red Team Security Engineer II in Huntsville, AL. Candidate must have an active Secret Clearance with eligibility to obtain a Top Secret/SCI Clearance.
The Red Team Security Engineer will conduct multiple penetration tests of global customer networks, rapid development of domain or problem-specific tools that leverage identified vulnerabilities, research on the latest exploitation techniques and threat vectors, and design and configuration of representative test environments.
Candidate must support various training events, conferences, exercises, and demonstrations to ensure continued compliance with team member certification requirements to enhance technical capabilities, and to support authorized missions and test events.
Qualifications
Must have an active Secret Clearance with eligibility to obtain a Top Secret/SCI Clearance
Bachelor’s degree from an accredited college or university in computer science, information systems, engineering, scientific or a mathematics-intensive discipline or a Relevant Technical Discipline. At least 3-5 years of practical experience required. Two years of relevant experience with an Associate’s degree will be considered the equivalent of a Bachelor’s degree. Four years of relevant experience will be considered equivalent to a Bachelor’s degree .
Must have a CEH & CISSP Certification upon hire
SPECIALIZED experience in Red Teaming, Computer Network Attack (CNA), Computer Network Exploitation (CNE), Computer Network Defense (CND), and/or penetration testing
Ability to independently and rapidly develop tools and scripts from concept to production in a high-stress, short deadline, under-resourced environment using multiple programming languages
Additional Requirements:
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