AI-Focused Red Team Operator

Millennium Corporation; Washington (District of Columbia); On-site; USD 130,000 - 133,000; Full time

Job summary

Millennium Corporation is seeking an AI-focused Red Team Operator to support a government customer in the Washington, DC area. Active Top Secret clearance is required, and the role involves offensive and defensive cyber operations with AI integration.

The ideal candidate will conduct penetration testing, adversary emulation, threat hunting, and detection engineering while applying AI to enhance cyber mission effectiveness. Strong collaboration with cybersecurity engineers is essential.

Qualifications

• Active Top Secret clearance required.
• Bachelor's degree and 5+ years of experience; 4+ years in lieu of degree considered.
• Experience Red Team operations, penetration testing, or adversary emulation.
• Design, develop, and evaluate AI agents for automating security tasks with guardrails.
• Experience supporting Blue Team operations including threat hunting and incident response.
• Strong networking, OS, identity management, cloud, and modern attack methodologies.
• Scripting/automation with Python, PowerShell, Bash or similar.
• Familiarity with AI/ML concepts, Large Language Models, and AI security risks.

Responsibilities

• Conduct authorized penetration testing, adversary emulation, and Red Team assessments.
• Perform Blue Team activities including threat hunting and detection engineering.
• Evaluate AI/ML systems for security weaknesses across the model lifecycle.
• Assess AI/LLM applications against emerging AI threats and frameworks.
• Identify vulnerabilities in prompt injection, RAG, model manipulation, and data poisoning.
• Develop offensive tradecraft and defensive guardrails for AI-enabled systems.
• Collaborate with engineers and stakeholders to improve resilience to AI-enabled threats.
• Produce technical docs, assessment reports, and executive briefings.

Skills

Red Team operations

Offensive security

Threat hunting

AI/ML concepts

Security testing

Education

Bachelor's degree

Tools

Python

PowerShell

Bash

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 is hiring a skilled AI-Focused Red Team Operator to support advanced cyber operations for a government customer in the Washington, DC area (Position contingent upon contract award/additional funding). The candidate must have an active Top Secret clearance.

The ideal candidate possesses extensive experience in offensive and defensive cybersecurity operations and is passionate about applying artificial intelligence to improve cyber mission effectiveness. Th candidate will get anopportunity to work at the forefront of AI-enabled cyber operations, combining traditional penetration testing, adversary emulation, threat hunting, and detection engineering with emerging AI technologies.

• Conduct authorized penetration testing, adversary emulation, and Red Team assessments against enterprise, cloud, and AI-enabled environments.
• Perform Blue Team activities including threat hunting, detection engineering, incident response support, and defensive security assessments.
• Evaluate AI and machine learning systems for security weaknesses throughout the model lifecycle.
• Assess Large Language Model (LLM) applications against emerging AI threats and industry frameworks such as the OWASP LLM Top 10.
• Identify vulnerabilities involving prompt injection, retrieval-augmented generation (RAG), model manipulation, indirect prompt injection, tool abuse, data poisoning, and model extraction techniques.
• Develop offensive tradecraft to evaluate AI-enabled systems while ensuring responsible and authorized testing practices.
• Design and implement defensive controls including guardrails, monitoring, content filtering, evaluation frameworks, and AI-specific security controls.
• Leverage AI technologies to improve offensive and defensive cyber operations through automation, large-scale reconnaissance, code analysis, detection engineering, report generation, and security analytics.
• Collaborate with cybersecurity engineers, analysts, and stakeholders to improve organizational resilience against emerging AI-enabled threats.
• Produce high-quality technical documentation, assessment reports, and executive briefings.

AI Engineering & Automation

Successful candidates should demonstrate experience building or integrating AI-assisted security workflows, including:

• Agentic workflows for security operations and incident response
• Automated alert triage and enrichment
• Detection tuning and threat hunting using AI
• AI-assisted report generation and documentation
• Secure integration of LLMs into cybersecurity workflows
• Evaluation and testing of security-focused language models

Qualifications

• Active Top Secret security clearance.
• Bachelor's and total 5+ years experience. Additonal 4+ YoE would be considered in lieu of degree.
• Experience conducting Red Team operations, penetration testing, or adversary emulation.
• Design, develop, and evaluate AI agents capable of automating routine penetration testing tasks within authorized environments, employing strict operational guardrails, human oversight, and defined rules of engagement to ensure safe, controlled, and repeatable security assessments.
• Experience supporting Blue Team operations including threat hunting, detection engineering, incident response, or security operations.
• Strong understanding of enterprise networking, operating systems, identity management, cloud technologies, and modern attack methodologies.
• Experience developing scripts or automation using Python, PowerShell, Bash, or similar languages.
• Familiarity with AI/ML concepts, Large Language Models, and AI security risks.
• Strong written and verbal communication skills.

Preferred Qualifications: Experience with one or more of the following:

• AI Red Teaming
• Prompt injection testing
• Retrieval-Augmented Generation (RAG) security
• Adversarial machine learning
• Model evasion and data poisoning
• AI governance and secure model deployment
• MITRE ATT&CK
• MITRE ATLAS
• OWASP LLM Top 10
• NIST AI Risk Management Framework (AI RMF)

One or more of the following certifications are desirable:

• CISSP or CEH orOSCP orGPEN or GCIH or PNPT or Security+ orAI Security coursework or certifications (e.g., AI Security Fundamentals, LLM Red Teaming, or equivalent training)

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.

COMPENSATION:

$130,000-$133,000

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.