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Job Details

Senior Principal Software Vulnerabilty Researcher

Company name
ManTech International Corporation.

Vienna, VA

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Vienna, VA 22027


Req ID


Business Title

Senior Principal Software Vulnerabilty Researcher





Clearance Level Needed




Job Duties and Responsibilities

ManTech Mission, Cyber and Intelligence Solutions (MCIS) Group has an exciting opportunity for a Software Vulnerability Researcher in the San Antonio, TX area! Are you passionate about understanding how the modern software ecosystem works? Do you value intellectual honesty? Do you enjoy the process of problem solving? Is there more to software security than adjacent memory corruption? Do you like flexible hours, hard problems, open questions, success and failure?

ManTech is dedicated to hiring the best of the best, and in order to do so we offer great pay and excellent benefits.

Major Job Functions:

•Reverse engineer software for security mechanism bypass

•Develop computer code in multiple languages as applicable

•Develop instrumentation in support of primary tasks

•Follow Agile Scrum methodology

•Take self initiative to remain knowledgeable of evolving trends in offensive and defensive cyber tools, tactics, and procedures

•Perform as a team member in the research of software vulnerabilities

•Perform as a team lead on projects when suitable


•Individuals must be a U.S. Citizen and either hold an active US Security Clearance or must be eligible to obtain a US Security Clearance.

•Applicants with the appropriate skills but without a security clearance are still encouraged to apply. If you’re the right fit for the job, we’ll make it happen.

•Applicants will be subject to a government security background investigation.


•Bachelor's degree or equivalent combination of education and experience

•Bachelor’s degree in one of the following disciplines: Computer Engineering, Computer Science, Math, Software Engineering or a related field preferred

•A passion for low-level software development and engineering

•Knowledge of operating system fundamentals, including interrupts, threading, virtual memory, device drivers, boot procedures, and memory management techniques

•Knowledge of operating system internals, development and integration of code within the operating system kernel, kernel debugging, assembly (x86 and 64-bit Intel / AMD, MIPS)

•Knowledge of file systems, networking, and protocol stacks

•In-depth knowledge of Microsoft Windows internals

•In-depth knowledge of compilers, operating systems, and/or program analysis

•Experience in reverse engineering

•Experience in vulnerability research

•Experience in C and C programming

Note: Candidates of all experience levels (junior through senior) are encouraged to apply!


Requires Bachelors degree in related field and twelve to fifteen years of related experience, training and/or certifications in various intelligence disciplines, intelligence surveillance and reconnaissance (ISR) systems and platforms, and multi-discipline intelligence processes including the following current intelligence disciplines: Cryptology, Intelligence & Electronic Warfare (IEW), Signals Intelligence (SIGINT), Imagery Intelligence (IMINT), Human Intelligence (HUMINT), Measurements and Signatures Intelligence (MASINT), All-Source Intelligence Analysis, Counter-Intelligence (CI), intelligence systems development and maintenance, and other related fields. Other intelligence areas may be added as technological or other advances occur. Or Master's degree and nine to eleven years of related experience. Ability to obtain security clearance.


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Years of Experience

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Position Type





ManTech International Corporation is comprised of approximately 7,300 talented employees who use advanced technology to help government and industry meet some of their greatest challenges around the world. We adhere to the simple, no-nonsense values on which ManTech was founded more than four decades ago, aligning squarely with the mission objectives of our customers. As our customer base continues to expand and diversify, we continue to diversify our workforce and solutions. Nearly half our employees have a military background, and approximately 70 percent hold a government security clearance. As a leading provider of innovative technology services and solutions for the nation's defense, security, health, space, and intelligence communities; we hold nearly 1,100 active contracts with more than 50 different government agencies.

Company info

ManTech International Corporation.
Website :

Company Profile
ManTech International Corporation provides technologies and solutions for mission-critical national security programs in the United States and internationally. It offers cyber warfare and cyber defense security solutions and services, such as identifying and neutralizing external cyber attacks; engineering tailored defensive security solutions and controls; managing security operations centers; developing robust insider threat detection programs; and creating enterprise vulnerability management programs. The company also provides information technology (IT) modernization and sustainment services that designs, develops, deploys, modernizes, operates, and maintains IT systems and infrastructure; intelligence/counterintelligence solutions and support; systems engineering; and healthcare analytics, and IT solutions that encompasses health information sharing and clinical analytic solutions. ManTech International Corporation serves the United States federal government intelligence, military, space, civilian agencies, state and local governments, and commercial customers. The company was founded in 1968 and is based in Fairfax, Virginia.

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