Offensive Security Red Team Engineer | Pen Test & Tooling

Millennium; Charleston (SC); On-site; USD 120,000 - 180,000; Full time

Job summary

Millennium Corporation is seeking a Red Team Security Engineer to join our cybersecurity team in Charleston, SC. This role focuses on offensive security, including penetration testing, tooling development, and realistic adversary simulations to strengthen client defenses.

You will conduct engagements across enterprise environments, emulate sophisticated attack scenarios, and communicate findings and mitigations to internal teams.

Qualifications

• Bachelor's degree in a related technical field (Cybersecurity, CS, Engineering, Mathematics).
• 3+ years in software development, systems engineering, or networking, with 1+ year hands-on penetration testing.
• Proficiency with Python, PowerShell, and Bash scripting.
• Experience with web app security, TCP/IP, packet analysis, and offensive security tools like Kali Linux and Cobalt Strike.

Responsibilities

• Conduct penetration testing engagements against enterprise applications, systems, and customer networks.
• Perform Red Team operations emulating adversary TTPs.
• Develop and maintain custom tooling and payloads in Python, PowerShell, and Bash.
• Design, configure, and maintain test environments to support offensive assessments.
• Lead engagements from planning through final reporting and remediation recommendations.

Skills

Python

PowerShell

Bash scripting

Education

Bachelor's degree in Cybersecurity/CS/Engineering/Math

Tools

Kali Linux

Cobalt Strike

Job description

Millennium Corporation is seeking a Red Team Security Engineer to join our cybersecurity team in Charleston, SC. This role focuses on offensive security, including penetration testing, tooling development, and realistic adversary simulations to strengthen client defenses.

You will conduct engagements across enterprise environments, emulate sophisticated attack scenarios, and communicate findings and mitigations to internal teams.