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Principal Investigator (VA) 

Category Engineering  

STR performs advanced research and development using machine learning, program analysis, optimization, artificial intelligence, and formal methods for the cybersecurity and resiliency of cyber-physical systems. Addressing the most urgent national security challenges, STR is developing fundamentally new capabilities in cyber-physical systems modeling, vulnerability analysis, and attack detection and remediation.

STR conducts 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 seek software developers and researchers who are passionate about technology and security, from the bare metal to the cloud, and everywhere in between. We are growing rapidly and hiring at all levels and across disciplines for new and exciting projects. STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. We strive for excellence in technical work that addresses the most important problems in national security.

We believe that each employee has a unique set of skills, experiences, and perspectives that are essential to providing our customers with innovative solutions. The skills listed below are intended to give you a sense for the position. If you see an overlap with your skills, go ahead and apply! All applicants must be US citizens who are willing and able to obtain a security clearance.

The Role:

  • Lead teams developing innovative technical proposals to customer solicitations
  • 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 Requirements

Who You Are:

  • A mid-level researcher with a BS or Masters in Computer Science, Computer Engineering, Electrical Engineering, Physics, Mathematics, Cybersecurity or related field and several years of experience as a technical team lead, or

  • A senior-level researcher with a Masters or PhD in one of the above fields, and some experience leading research projects

  • Substantial experience in cyber R&D

  • 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

  • Good 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

  • Motivated collaborator and effective communicator to both technical and non-technical audiences

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.

At STR, we are dedicated to fostering a diverse and inclusive community to create an environment that is innovative, collaborative and empowering. STR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race/ethnicity, religion, gender, sexual orientation, disability status, military veteran status, or any other characteristic protected by law.

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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