About the Role 

We are seeking a Senior Guidance, Navigation & Control (GNC) Engineer to lead the development of GNC solutions across our missile portfolio. You will drive the design, analysis, and validation of navigation, guidance, and control algorithms that enable precise, stable, and robust flight performance.

At Frankenburg, you will work alongside leading experts in technology and national defence, developing next-generation air defence missile systems for the free world. You will collaborate across disciplines, influence critical technical decisions, and mentor the next generation of engineers while helping bring advanced defence technologies from concept to flight.

Key Responsibilities 

• Navigation & Estimation Development
  Lead the design of navigation algorithms, sensor fusion architectures, and state estimation solutions.

• Guidance & Control Design
  Develop guidance algorithms, trajectory optimization strategies, and flight control laws that meet mission requirements.

• Modeling & Simulation
  Create and maintain flight dynamics models and simulation environments in MATLAB/Simulink and Python.

• Analysis & Verification
  Conduct robustness, sensitivity, and Monte Carlo analyses to validate system performance under realistic conditions.

• Cross-Functional Collaboration
  Work closely with flight physics, airframe, actuation, sensor, and systems engineering teams to resolve technical challenges and optimize system performance.

• Technical Leadership
  Lead design reviews, technical documentation, risk assessments, and mentor junior engineers.

• Flight Testing
  Support flight test planning, execution, and post-flight analysis to continuously improve models and algorithms.

We Would Love You to Have

• Educational Background
  Master's degree or PhD in Aerospace Engineering, Electrical Engineering, Applied Mathematics, or a related discipline.

• Experience
  7+ years of experience in GNC, flight dynamics, or related aerospace engineering fields, ideally within missile, launch vehicle, aircraft, or UAV programs.

• Technical Expertise
  Strong knowledge of guidance, navigation, control systems, state estimation, sensor fusion, and flight dynamics.

• Software Skills
  Proficiency in MATLAB/Simulink and Python for modeling, simulation, and algorithm development.

• Leadership & Communication
  Strong communication skills, technical leadership capability, and a proactive, solution-oriented mindset.

• Mission Alignment
  Strong alignment with our mission to build affordable and mass-manufacturable defence technologies — ensuring every euro spent moves us closer to our goal.

• Security Clearance
  Willingness to undergo a background check as a condition of employment.

• Open to Relocate
  Willingness to relocate to Tallinn.

Our Values

Our mission is ambitious, and it takes a team that works with the same intensity.

• Own the Mission: Mission first. Always.
  We choose impact — we focus on what moves the mission forward fastest instead of “nice-to-haves". We fix it now — when delays or problems appear, we step up, rally the right people, and solve them immediately. We keep momentum — when time matters, we stay focused and move forward without waiting for perfect conditions.

• Strive for More: Dare more. Do more. Achieve the impossible.
  We challenge the status quo — we question, test, and improve instead of accepting “the usual way.” We embrace discomfort — we step outside comfort zones and turn challenges into growth. We anticipate the future — we build solutions that scale and set higher standards each time.

• Build with Trust: Be open. Keep promises.
  We walk the talk — what we say, we do. No excuses, no exceptions. We share openly — we communicate clearly and early, even when the news is hard. We own outcomes — we admit errors quickly, fix them, and prevent them from repeating.

Ready to Make a Real Impact?

Apply now! The deadline is September 27, 2026, but we review applications and reach out to qualified candidates continuously.