TSSCI Senior Offensive Security Engineer
Mitre Corporation
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 isseekingcreative and passionate people who will advance the practice of adversary emulation, threat emulation, and red teamingdevelopment 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 thecutting-edgecapabilities 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 showblue 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 experiencepresenting 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. MITRE intends to maintain a website that is fully accessible to all individuals. If you are unable to search or apply for jobs and would like to request a reasonable accommodation for any part of MITRE’s employment process, please email View email address on click.appcast.io for general support and View email address on click.appcast.io for intern positions. This service is for individuals requiring reasonable accommodation requests. Please note that vendor solicitations will not receive a reply. Benefits information may be found here ( . Copyright © 1997-2026, The MITRE Corporation. All rights reserved. MITRE is a registered trademark of The MITRE Corporation. Material on this site may be copied and distributed with permission only. #J-18808-Ljbffr Mitre Corporation
- ...where your skills strengthen national security, cybersecurity, health, transportation,... ...and citizen services. We're a nonprofit engineering, applied research, and advanced technology... ..., and help our government sponsors use offensive security to improve cyber defense. Our...SeniorWork experience placementInternshipLocal areaImmediate start
- ...where your skills strengthen national security, cybersecurity, health, transportation,... ...and citizen services. We're a nonprofit engineering, applied research, and advanced technology... ..., and help our government sponsors use offensive security to improve cyber defense. Our...SeniorWork experience placementInternshipLocal areaImmediate start
$185k - $205k
Senior Offensive Cyber Analyst Location: Arlington & Alexandria, VA Compensation Range: $185 -$205K *Clearance: *Active TS/SCI needed to... ...end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally...SeniorWork at office$183k - $243k
...sensor fusion, and networking technology to the military in months, not years. ABOUT THE TEAM We're seeking a Senior Offensive Security Engineer to grow Anduril's offensive security practice. The ideal candidate has documented background in offensive security. They...SeniorFull timeWork experience placementImmediate start- ...where your skills strengthen national security, cybersecurity, health, transportation,... ...and citizen services. We're a nonprofit engineering, applied research, and advanced technology... ...Practical experience with AI-enabled offensive security, adversarial AI...SeniorWork experience placementInternshipLocal areaImmediate start3 days per week
- ...here. UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security... ...and in India. UltraViolet Cyber is looking for a Security Engineer to support one of our Federal customers. The role calls for an...SeniorContract workWork at office
- ...Job Description Job Description Senior Security Engineer Position Overview The Senior Security Engineer directs the architecture, integration, deployment, operation, and sustainment of security tools, sensors, platforms, data sources, and supporting infrastructure...Senior
$55.93 - $63.93 per hour
...Job Description Job Description Genesis10 is currently seeking a Senior PKI Security Engineer for a Remote position with a Major Financial Institution located in McLean, VA. This is a 5+ month contract opportunity. Our client is looking for a Senior PKI Security...SeniorRemote jobHourly payPermanent employmentContract work- ...nation’s most mission-critical facilities, secure environments, complex infrastructure,... ...power and technology solutions through engineering expertise and smart systems integration.... ...cybersecurity industries. We are seeking a Senior Physical Security Engineer to join our...SeniorWork at officeLocal areaFlexible hoursNight shift
$70 - $75 per hour
...Job Description Job Title: Senior PKI Security Engineer Location: 100% Remote Duration: 07+ Months Contract with Extension Job id – 180929 Job Description : \n Client is looking for a Senior PKI Security Engineer within the Cyber organization who will...SeniorFull timeContract workRemote work- Integration Innovation, Inc. seeks a senior researcher to join a security research team focused on rapid triage, reverse engineering, vulnerability discovery, and PoC exploit development. You’ll independently investigate unfamiliar systems, turn findings into reproducible...Senior
- Summary We are looking for a highly talented, technical hands‑on Senior Security Engineer to develop and implement strategies to protect computer systems, networks, and other digital assets from malicious attacks. To work with a team of IT professionals to design and implement...SeniorFull time
$45 - $65 per hour
Job Summary A leading Financial Services provider is seeking a Senior PKI Security Engineer to join their team. This position is W-2 only. We do not work with third-party firms or C2C arrangements for this role. Core Responsibilities Manage internal processes for the issuance...SeniorHourly payLocal area- ...Description: Location: Arlington, VA Department: Cyber Security Services Reports To: Management FLSA Status:... ..., Apavo is the place for you. Job Purpose: The Senior Information Systems Security Engineer (ISSE) provides expert-level technical security...SeniorFull timeWork at officeLocal area
$150k - $250k
...everyone's work is visible and impactful. We're looking for a senior security engineer who breaks things so our members never have to worry.... ...a spreadsheet. You demonstrate them and help fix them. Offense-minded. You've spent real time doing red team operations,...SeniorFull time- M.C. Dean is actively seeking a Sr. Physical Security Engineer to join the Security and Electronic Systems (SES) group. You will design, implement, and maintain advanced electronic security services, including intrusion detection, access control, biometrics, and video surveillance...SeniorLocal area
$185k - $205k
Cornerstone Defense LLC is seeking a Senior Offensive Cyber Analyst in Arlington/Alexandria, VA. The role supports policy development, operations planning, and senior-level decision materials within the DoW cyber program. A TS/SCI clearance is required to apply. The position...Senior- M.C. Dean, Inc. seeks an Engineer 6 in the Security and Electronic Systems (SES) unit to design, engineer, integrate, operate, and maintain electronic security services for federal, local, and commercial customers. You will lead large-scale designs and work across disciplines...SeniorLocal area
- KellyMitchell Group is seeking a Senior PKI Security Engineer to join our financial services client. This W-2 role focuses on PKI lifecycle, certificate authority management, and domain validation processes. You will lead enterprise PKI changes, perform disaster recovery...Senior
- Carnegie Mellon University seeks an AI Red Team Engineer to lead adversary emulation and capability development on the AI Security team. You will work on red‑teaming AI-... ...contexts, across Windows and Linux, with strong offensive cyber background. The role involves planning...Senior
$150k - $224k
...Join an organization where your work contributes to a greater purpose. Position Overview: Freddie Mac is seeking Offensive Security Engineers who excel at navigating ambiguity uncovering weaknesses and engineering solutions that elevate our security posture!...Full timeLocal area$174k - $252k
...Senior Security Engineer, OCONUS, Google Pub Sector Share Senior Security Engineer, OCONUS, Google Pub Sector corporate_fare Google place Reston, VA, USA Must be a US Citizen to meet customer and compliance requirements, including potential access to classified...SeniorLocal area- Hiring Our Heroes is seeking a highly talented Senior Security Engineer to protect computer systems and networks. You will develop and implement security strategies while working with IT professionals to design and enhance current security measures. This role requires...Senior
- ...UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of... .... UltraViolet Cyber has an exciting position for a Senior Microsoft Cloud Security Engineer as we deploy, manage, and hardening our Microsoft cloud...SeniorWork at office
- CoStar Group in Arlington, VA is seeking a Senior Cloud Platform Security Engineer to enforce security posture across AWS, GCP, and Azure. This role requires over 6 years of security engineering experience with a strong focus on cloud security and automation. The ideal...Senior
- SES Satellites seeks a Senior Engineer, Cloud and System Security to translate advanced security requirements into comprehensive technical concepts. You will lead project and BizDevOps teams to deliver resilient security solutions across cloud, system and application domains...Senior
- ...Job Description Job Description Senior Network Security Engineer - Bethesda, MD (Remote) Duration: 12 months Seeking for a Senior Network Security Engineer to design and implement next-gen firewall management solutions for our global networks, ensuring compliance...SeniorRemote job
- ...Job Description Job Description Job Title: Senior Network Security Engineer Location: Washington, DC (Onsite) Employment Type: W2 Contract Duration: 11 months About the Opportunity: ZipStaff is hiring a Senior Network Security Engineer for our client...SeniorFull timeContract work
- ...Job Description Job Description Role: Senior Network Security Engineer II Client : DC Government location: Washington, DC (Onsite) Job Description: Duties & Responsibilities: Ability to monitor and analyze data traffic patterns within the OCFO network...SeniorFull timeRemote work
- ...Escalation Point of Contact: Serve as the primary Level 3 escalation point for resolving complex network infrastructure, routing, and security configuration issues across both on-premise Data Centers and AWS environments. Maintain Multi-Vendor Security & Perimeter...SeniorWork at office
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