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TSSCI Senior Offensive Security Engineer

MITRE Corporation · McLean, Virginia, United States of America

TS/SCI clearance required · polygraph namedU.S. citizenship required

Posted 2026-10-23 · Verified live 2026-10-25

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About this role

At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology organization working in the public interest. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies – collaborating with industry and academia to deliver integrated, high-impact solutions that advance our nation’s health, security, and prosperity. Our people tackle the toughest technical challenges, supported by competitive benefits, meaningful career development, and a culture of innovation, collaboration, and technical excellence. Choose MITRE for a career with purpose — and help shape the future.

Department Summary:

MITRE’s Cyber Threat Intelligence department is seeking is seeking creative and passionate people who will advance the practice of adversary emulation, threat emulation, and red teaming development and operations. You will advance the state of the art through research and development, advance the state of the practice through support to critical projects including ATT&CK Evaluations and Caldera, and help our government sponsors use offensive security to improve cyber defense. Our department is responsible for delivering and advancing MITRE’s adversary emulation expertise across all of MITRE’s national security, public sector, and private sector sponsors.

Roles & Responsibilities:

Use your skills as an offensive security engineer and knowledge of adversary behaviors to build and emulate the cutting-edge capabilities of real-world threats

Use AI to advance the state of the art in cyber operations, purple teaming, and cyber threat intelligence

Use your understanding of cyber intelligence to build products, perform R&D, and help sponsors solve their hardest CTI problems

Propose and lead research to improve the state of the art of cyber operations

Participate in, define, or lead offensive security engagements to show blue teams how to respond to real-world adversaries

Use your knowledge of adversary behavior to advance ATT&CK, Caldera, and other MITRE efforts

Basic Qualifications:

Typically requires a minimum of 5 years of related experience with a Bachelor’s degree; or 3 years and a Master’s degree; or a PhD with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience.

Experience creating and using offensive security tools, malware implants, and other red team capabilities in one or more programming languages.

Demonstrated ability to independently deliver adversary emulation capabilities.

Excellent written and oral communication skills, including experience presenting technical analysis in written products and presentations.

Must have an active Top Secret/SCI with polygraph U.S Government issued Security Clearance. Per the U.S. Government’s eligibility requirements, you must be a U.S Citizen to be considered for a security clearance.

This position requires a minimum of 4 days a week on-site.

Preferred Qualifications:

Knowledge of ATT&CK, Caldera, ATT&CK Evaluations, and MITRE’s work in offensive security.

Experience in cyber threat intelligence, including using threat intelligence to define red team capabilities.

This requisition requires the candidate to have a minimum of the following clearance(s):

Top Secret/SCI/Polygraph

This requisition requires the hired candidate to have or obtain, within one year from the date of hire, the following clearance(s):

Top Secret/SCI/Polygraph

Salary compensation range and midpoint:

$129,200 - $161,500 - $193,800 Annual

Work Location Type:

Onsite

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local or international law.

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Benefits information may be found here.

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