Senior GNC Engineer (Guidance, Navigation, and Control Systems)

STR is looking for a GNC Algorithms expert to be part of a multidisciplinary team of researchers and engineers dedicated to developing cutting-edge technologies with significant and immediate impact on our 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 to difficult national security challenges. Our culture takes pride in developing impactful technologies through collaborative teamwork while maintaining the highest standards of craftsmanship and quality.

We are looking for a Senior GNC Engineer with versatile skills in aerospace guidance, navigation and control systems technology. Areas of particular interest includes advanced filtering and estimation techniques, flight control system design, and/or aerospace systems modeling. A successful candidate will join a team of algorithm and software developers in a fast-paced and results-driven prototyping environment.

We encourage applicants who are proficient at programming in at least one high-level programming language (e.g. C/C++, Python and/or MATLAB) for building models and algorithmic technologies in support of system analysis and development. In our view, the development of these models and technologies is benefited by sound understanding and hands-on experience with implementing guidance and control systems hardware.

What you will do:

• Developing advanced control system algorithms for aerospace applications


• Developing algorithms for sensor and system research and threat analysis


• Developing and analyzing aerospace GNC systems, including both hardware and software


• Implementing models and algorithms in in Python, C/C++, and/or MATLAB


• Working in small teams of highly skilled developers in the above areas


• Participating in laboratory and field tests to collect and analyze experimental data to support the verification, validation, and improvement of technical solutions


• Communicating technical ideas and implementations through reports and presentations

Who you are:

• This position requires an Active Top Secret security clearance, for which U.S. citizenship is needed by U.S. Government.


• M.S. in Aerospace, Mechanical or Electrical Engineering, Physics, Mathematics, Computer Science, or related field with 3+ years of relevant experience, or B.S. + 5 years equivalent experience


• Proficiency in C/C++, Python and/or MATLAB


• Experience in implementing aerospace control algorithms, filters and models


• Experience developing and giving technical presentations

Nice to Have:

• Familiarity with software build and scripting tools, CI/CD development practices


• Understanding of orbital and flight dynamics and modeling of such systems


• Experience with Kalman filtering and related techniques


• Experience using collaborative source code management tools (Git, Subversion)


• Experience building, operating and analyzing GNSS systems


• Experience in implementing guidance, navigation and control systems hardware and sensors

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.