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Cybersecurity Principal Investigator - Arlington, VA 

Category Engineering  

STR is a privately-owned, rapidly growing business focused on research and development (R&D) for the defense and intelligence communities. STR has approximately 340 employees at sites in Woburn, MA, Dayton, OH and Arlington, VA. We are a nationally recognized leader in research areas including cyber, data analytics, sensors and signal processing, electronic warfare, video and image understanding, command and control, and precision navigation. Several of our research projects have produced advanced technology that we have transitioned to military and intelligence users. While our primary focus is on serving US Government customers, we are pursuing commercial applications as well.

Job Description:

STR is conducting advanced research in cyber and related disciplines, ranging from reverse engineering to formal methods and autonomous agent-based defenses, and from embedded systems hardware to enterprise cloud environments. We are seeking exceptional candidates to:

  • Lead teams of engineers researching, developing and implementing cyber capabilities that advance the state of the art.
  • Lead the demonstration of these capabilities on a range of platforms, from embedded to enterprise systems
  • Interact effectively with national security customers and users to identify and develop project requirements and define innovative solutions
  • Position may involve travel to customer meetings and test sites
Position Requirements


  • A strong background in cyber, with a track record of substantial accomplishments; an advanced degree in computer science, mathematics or a related field is a positive but not essential; an ability to apply scientific and/or engineering techniques to abstract away from the specifics of cyber systems, in order to create robust, reproducible results.
  • Superior communication skills, able to present results, research directions, and new concepts to customers, and to provide clear guidance to engineering teams tackling difficult, underspecified research challenges
  • Strong software engineering abilities, demonstrated ability to manage all technical aspects of a multi-person engineering team
  • US citizenship is required; must be able to obtain a security clearance

STR seeks to provide an outstanding work environment for its employees with excellent benefits and competitive compensation. Full-time employees enjoy 401(k), profit sharing, health and welfare benefits, subsidies for training and conference attendance to foster continued learning and development, and a casual yet technically challenging work environment.

STR is dedicated to fostering a diverse and inclusive workforce where all employees, regardless of race, ethnicity, gender, neurodiversity, or other personal characteristics, feel valued, included, and empowered to achieve their best. We recognize that each employee’s backgrounds, experiences, and perspectives are essential for providing our customers with innovative solutions to challenging national security problems. STR’s commitment to attracting, retaining, and engaging talented and diverse professionals is demonstrated by our participation, sponsorship, and support in local and national minority organizations.

Applicants must be US Citizens.

About the Organization Systems & Technology Research (STR) is a rapidly growing technology company with locations north of Boston, MA, Arlington, VA and near Dayton, OH. We specialize in advanced research and development for defense, intelligence, and national security, trying to understand how to protect our society: from stopping malicious botnet attacks, to understanding cyber vulnerabilities, providing next generation sensors, radar, sonar, communications, and electronic warfare to developing artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, but you go home at night knowing that you pushed the forefront of technology and made the world a little safer. We recognize that the world is changing, that it is becoming more connected than ever before, making things change faster than before, and reshaping society in the process. We all want to understand this changing world and leave it better for our work.

We're not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe!

EOE Statement STR is fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at and provide your name, phone number and email address.

US Citizenship is required for all positions.

This position is currently not accepting applications.

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