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Red Team Security Engineer with Security Clearance
Millennium CorporationCharleston, SC🇺🇸United StatesPosted 21 Jul 2026
Why This Role Stands Out
Advance your career protecting national security as a Red Team Security Engineer at Millennium Corporation, where you'll conduct global penetration tests and develop cutting-edge tools, benefiting from hybrid flexibility and a competitive hourly rate. If you possess a Secret clearance and a passion for tackling complex cybersecurity challenges, this role offers immense growth potential within a highly respected organization. Apply now to join an elite team at the forefront of cyber defense.
Quick Overview
Salary
£10 - £15/hr
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior
Job Description
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 in Charleston, SC. Qualified candidates must have a minimum of an active Secret Clearance with eligibility to obtain a Top Secret/SCI Clearance. * Conducts multiple penetration testing engagements on global customer networks * Rapidly develops domain or problem-specific tools that leverage identified vulnerabilities * Research the latest exploitation techniques and threat vectors and designs and configures representative test environments. * Attends various training events, conferences, exercises, and demos to ensure continued compliance with team member certification requirements Qualifications * Must have the required security clearance: Secret with eligibility to obtain a TS/SCI * Bachelor’s degree in Cybersecurity, Computer Science, Engineering, or Mathematics * Have an active DoD 8570 IAT Level II certification (CCNA-Security, CySA+, CND, or Security+ CE). * Must have one of the following certifications: OSCP, OSWE, CRTO, CPTS, CBBH, PNPT, GRTP, GX-PT, GXPN, OR obtain within 1 year from starting. * At least 3 years of experience in computer design, software development or computer networks. * At least 1 year of experience in Penetration Testing * Experience with PowerShell, Bash, and Python * Experience performing web application security assessments * Experience with TCP/IP protocols as it relates to network security * Experience with offensive tool sets such as Kali Linux or Cobalt Strike * Experience in using network protocol analyzers and sniffers, as well as the ability to decipher packet captures * Excellent independent, self-motivational, organizational, and project management skills * Proven ability to work effectively with managers, staff, vendors, and external consultants * Must think outside the box to emulate adversarial approaches * Capable of conducting penetration tests on applications, systems and networks utilizing proven/formal processes and industry standards * Capable of managing red team and/or penetration test engagements from cradle to grave * In-depth understanding of emerging threats, vulnerabilities, and exploits * Understanding of what Red Team C2 infrastructure is and how it works regarding covert remote operations. * Have the ability to independently and rapidly develop tools and scripts from concept to production in a high-stress, short deadline, environment using multiple programming languages. 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 * Less than 25%
Skills
TCP/IP
Bash
LESS
Penetration Testing
PowerShell
Python
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