Senior Offensive Security Engineer
mitreSan Diego (CA)
Senior Offensive Security Engineer
Posted today
mitreSan Diego (CA)
SENIORITY
Lead
About the role
Overview:
In this role you advance adversary emulation and red-teaming capabilities to strengthen government cyber defense. You will contribute to MITRE’s CTI initiatives, including ATT&CK Evaluations and Caldera, by applying offensive security research to real-world sponsors. You’ll collaborate with cross-functional teams to deliver practical, high-impact security capabilities and guide blue-team responses. This is a mission-driven opportunity to shape national cyber resilience through rigorous research and hands-on experimentation. Compensation / Benefits competitive benefits meaningful career development on-site work requirement (4 days/week) collaborative, mission-driven culture
Responsibilities:
Build and emulate cutting-edge threat capabilities reflecting real-world adversaries Leverage AI to advance cyber operations, purple teaming, and threat intelligence Apply cyber intelligence to develop products, conduct R&D, and help sponsors solve CTI problems Propose and lead research to push the state of the art in cyber operations Participate in or lead offensive security engagements to train blue teams on real adversaries Advance ATT&CK, Caldera, and MITRE projects using adversary behavior knowledge
Key requirements:
Minimum 5 years of related experience with a Bachelor’s degree, or 3 years with a Master’s, or PhD with relevant experience Experience creating and using offensive security tools, malware implants, and red team capabilities in one or more programming languages Demonstrated ability to independently deliver adversary emulation capabilities Excellent written and oral communication skills, including presenting technical analyses excellent written and oral communication (explicit) collaboration independent initiative offensive security tools malware implants programming languages
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.