Principal Algorithm & Signal Processing Researcher

| Woburn, MA, USA
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About the Team:

The Electronic Warfare and Novel Capabilities Group (EWNC) within the STR Sensors Division is at the forefront of developing advanced signal processing algorithms and prototyping systems for next-generation radar and electronic warfare technologies. The EWNC group fosters a culture of innovation and collaboration. We collaborate with a dynamic group of research engineers across STR, academic researchers, and industry partners to develop practical and effective solutions to RF sensing and counter-sensing challenges. Together, we're dedicated to tackling some of the toughest problems faced by our national security-focused clients. If you're seeking an opportunity to apply your deep technical knowledge and creativity to make a lasting impact in national security, we invite you to join us.  

The Role:

As a Principal Algorithm & Signal Processing Researcher, you'll have the opportunity to develop state-of-the-art algorithms and techniques for signal detection, classification, autonomous sensor decision-making, sense making, radar electronic warfare, waveform design, electronic support measures and more.  In this role, you'll lead a team of researchers in creating innovative systems while collaborating closely with our engineering teams to translate your advancements into tangible systems. Additionally, you'll engage directly with our customers to understand and address their most critical challenges.  

What you will do:  

  • Design and apply cutting-edge signal processing and machine learning techniques to solve complex radar and RF sensing and counter-sensing challenges   
  • Lead and inspire small, multi-disciplinary teams, guiding them towards success with your technical expertise and leadership skills 
  • Collaborate with diverse teams, bringing together different perspectives to develop and deploy prototype systems that push the boundaries of what's possible 
  • Engage directly with customers to understand their unique requirements and national security needs, and shape our solutions to meet their objectives 
  • Drive business development initiatives and support proposal writing efforts, playing a key role in shaping the future direction of our projects and organization 

Who You Are:  

  • BS with 10+ years experience, MS with 8+ years experience, or PhD with 5+ years experience in Electrical Engineering, Applied Mathematics, Physics, or related technical discipline
  • 8+ years experience on EW or Radar programs, including the development of sensor system modes and advanced signal- and data-processing algorithms from mathematical/analytical derivation through testing and verification of system performance
  • 2+ years experience in two or more of the following areas:  
    • RF/radar signal processing, optimization, waveform design, electronic warfare, machine learning, adaptive signal processing, AI/ML algorithm development, algorithm development, model & simulation, systems engineering, test engineering, radar modelling, or RF systems prototyping 
  • Experience providing technical briefs to subcontractors, senior level executives, and customers 
  • Proficiency in in one or more scientific or mathematical programming languages, such as MATLAB, Python, and C/C++ 
  • Experienced researcher and team member who is excited to work with mission partners to leverage cutting-edge technology and research for immediate impact 
  • Excellent communicator and briefer, who is comfortable communicating with both technical and non-technical audiences 
  • Strong mathematical, troubleshooting, written, and verbal communication skills 

This position requires the ability to obtain a security clearance, for which U.S. citizenship is needed by U.S. Government

Even Better:  

  • Active Secret or TS/SCI Clearance 
  • Demonstrated leadership of complex research, development, and engineering efforts   
  • Experience with:
    • Radar and RF technologies in the defense sector, particularly for RF sensing and electronic warfare applications including electronic attack, electronic protection, cognitive EW, and advanced ESM techniques and algorithms 
    • Machine learning tasks such as natural language processing, image recognition, semantic segmentation, reinforcement learning, approaches such as Bayesian, deep convolutional and graph neural network methods, and tools such as PyTorch, Ray, TensorFlow/board, and MLflow
    • Interacting with decision-makers and customers to translate mission needs into an end-to-end solution  
  • Ability to apply novel, innovative and interdisciplinary approaches to challenging engineering problems  

Join us and be part of a team that's making an impact at the forefront of technology and innovation. While this position is ideally suited for a lead or principal engineer, individuals that feel they meet most of the requirements are encouraged to apply. We have opportunities for talented engineers at all experience levels in Woburn, MA or Dayton, OH.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. 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 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 [email protected] 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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Technology we use

  • Engineering
    • C++Languages
    • JavaLanguages
    • KotlinLanguages
    • PythonLanguages
    • RLanguages
    • RubyLanguages
    • ScalaLanguages
    • SqlLanguages
    • jQueryLibraries
    • jQuery UILibraries
    • ReactLibraries
    • Twitter BootstrapLibraries
    • DjangoFrameworks
    • FlaskFrameworks
    • Node.jsFrameworks
    • PlayFrameworks
    • SpringFrameworks
    • TensorFlowFrameworks
    • TorchFrameworks
    • MongoDBDatabases
    • Neo4jDatabases
    • PostgreSQLDatabases
    • RedshiftDatabases


600 W Cummings Park, Woburn, MA 01801

An Insider's view of STR

What are some social events your company does?

To create and foster connections among employees, STR hosts community events monthly. These include paint nights, trivia nights, cooking classes, and other exciting activities. Throughout the year, STR holds fun contests including a Movement Challenge and an Ugly Sweater Contest. To bring everyone together, STR also hosts a Holiday Party each year.


Human Resources Coordinator

How does the company support your career growth?

My STR internship gave me the opportunity to leverage and expand upon my skill set to solve real-world problems and contribute to my group’s research goals. Now as a full-time employee, I’m excited to continue working with a team of bright, talented, and friendly people on exciting challenges which push the boundaries of technology!


Research Engineer

What’s the vibe like in the office?

It's pretty fun to work at a place that does good things and treats its employees really well. There is free coffee, oatmeal, snacks, Brugger’s Bagels every Friday, lots of giveaways (peloton bikes!), a ton of employee academic/fun clubs (I am in the RF, surfing, running, and math clubs), and fun laptop stickers.


Computer Engineer

What are STR Perks + Benefits

Open door policy
OKR operational model
Team based strategic planning
Flexible work schedule
Remote work program
Documented equal pay policy
Dedicated diversity and inclusion staff
Mandated unconscious bias training
STR currently offers unconscious bias training to all employees.
Diversity employee resource groups
All STR employees have the opportunity to join or start their own Employee Resource Groups . Some existing ERGs include Womxn@STR, GenZ@STR, and more.
Hiring practices that promote diversity
Health Insurance + Wellness
Flexible Spending Account (FSA)
Disability insurance
Dental insurance
Vision insurance
Health insurance
Life insurance
Pet insurance
Wellness programs
Team workouts
Mental health benefits
Financial & Retirement
401(K) matching
Performance bonus
Child Care & Parental Leave
Family medical leave
Company sponsored family events
Vacation + Time Off
Generous PTO
Paid holidays
Office Perks
Company-sponsored outings
Free snacks and drinks
Some meals provided
Company-sponsored happy hours
Onsite office parking
Recreational clubs
Relocation assistance
Fitness stipend
Home-office stipend for remote employees
Professional Development
Job training & conferences
Tuition reimbursement
Lunch and learns
Promote from within
Mentorship program
Continuing education stipend

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