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Principal Investigator for Undersea Systems

STR

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What investigator roles keep asking for: SQL (20%), Python (18%), Excel (14%) — counted across their open postings here.

STR has 134 open roles listed here.

Counted across 14 company job boards, updated as roles open and close.

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Questions you are likely to be asked

  1. Why do you want to join STR?
  2. What is your experience with Agile? Tell me one thing you learned the hard way.
  3. Tell me about a time you disagreed with your manager. What happened?
  4. Where do you want to be in three years?
  5. What is a weakness you are working on, and how?

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About the Team:

The Sensors Division within STR focuses on the development and analysis of advanced sensor systems in the RF, acoustic, and electro-optical domains. This includes the design and development of novel sensors and advanced information processing techniques from ideation to prototype implementations. The Subsea and Seabed Systems (SSS) Group develops and delivers advanced undersea sensor and signal processing systems, including bespoke undersea vehicles to deploy those systems. We apply those products to to intelligence, surveillance, and reconnaissance (ISR) and counter-ISR applications to deliver missions success to our customers.

The Role:

We are seeking a Principal Investigator (PI) to lead cutting‑edge research and development in advanced undersea sensing and robotic systems. This role is ideal for a technical leader who can originate innovative concepts, shape them into compelling customer‑focused proposals, architect and plan complex programs, and drive execution from initial idea through successful at‑sea demonstration.

You will set the technical vision and lead multidisciplinary teams working on next‑generation Counter‑Uncrewed Underwater Vehicle (C‑UUV) technologies, acoustic underwater sensing and signal processing, noise control, undersea robotics, and other advanced undersea systems. You will engage directly with U.S. Government and industry partners, define new capabilities, and deliver operationally relevant solutions.

What you will do:

Technical Leadership & Vision

Innovation, Capture, and Customer Engagement

Program Execution & Team Leadership

Technical Execution (Domain Expertise)

Who you are:

Even Better:

This role is suited for a technical leader who thrives at the intersection of innovation, customer engagement, and hands‑on engineering, and who wants to shape the next generation of undersea sensing and robotic capabilities.

 Why Join Us?

This is an opportunity to contribute to the development of groundbreaking undersea robotic and sensing systems that will shape the future of maritime autonomy. You will work alongside a passionate and talented team, tackling some of the most challenging and rewarding problems in the field. If you are a visionary roboticist with a drive to innovate and lead, we want to hear from you.

Apply today and help us redefine what’s possible beneath the waves.

Pay Information
Full-Time Salary Range: $220,000 - $260,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, Carlsbad, CA, Atlanta, GA, and Denver, CO. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and 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, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is 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! Visit us at www.str.us for more info.


STR is an equal opportunity employer. We are 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 appassist@str.us and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

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Listed on greenhouse · posted 2026-09-16. ApplySarthi collects openings and links to application pages; the role is advertised by STR, not by us.