GNC Software Engineer – Unmanned Systems

L3Harris Technologies; Richardson (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

L3Harris Technologies in Richardson, TX is seeking a Specialist, GNC Software Engineer to design, develop, and evaluate guidance, navigation, and control algorithms for advanced unmanned systems. You will build high‑fidelity simulations, prototype software, and support integration and test across multiple vehicle platforms.

Ideal candidates bring deep MATLAB/Simulink and C/C++ expertise, strong problem‑solving, collaboration, and communication skills, with a U.S.

Qualifications

• Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Robotics, Mathematics, or a related technical discipline and a minimum of 4 years of related engineering experience with a Bachelor’s degree. 2 years of related engineering experience with a Master’s degree. In lieu of a degree, a minimum of 8 years of prior related engineering experience.
• Active US secret security clearance.

Responsibilities

• Proficiency with MATLAB/Simulink and C/C++.
• Demonstrated problem‑solving skills, including experience performing trade studies and parametric analyses.
• Strong interpersonal and collaboration skills and ability to work effectively in a multidisciplinary, diverse, and dynamic team environment.
• Strong written and verbal communication skills.
• Proficiency with Microsoft Office applications.
• Simulation and Software Development: Develop and support simulation environments and software tools for advanced GNC applications.
• Create dynamic models of vehicle aerodynamics, propulsion, hardware, actuators, and sensor systems.
• Design and develop guidance algorithms to deliver mission capability across a range of operating conditions.
• Design, implement, and tune controllers to meet vehicle stability, control, and performance requirements.
• Integrate multi‑sensor feedback to support navigation, tracking, and state estimation solutions.
• System Evaluation and Technical Communication: Assess system performance, capability, robustness, and sensitivity through analysis, simulation, and test.
• Perform root‑cause analysis of anomalies and support corrective action development.
• Prepare and communicate design, analysis, and test results to internal and external stakeholders.
• Demonstrated technical competency in at least one GNC discipline such as: Guidance, Navigation, Control theory, Tracking and state estimation, High‑fidelity vehicle modeling.

Skills

MATLAB/Simulink

C/C++

Trade studies

Team collaboration

Communication skills

Education

Bachelor’s degree in Aerospace/Mechanical/Electrical Engineering or related

Active US secret security clearance

Tools

Microsoft Office

Simulation environments

Job description

L3Harris Technologies in Richardson, TX is seeking a Specialist, GNC Software Engineer to design, develop, and evaluate guidance, navigation, and control algorithms for advanced unmanned systems. You will build high‑fidelity simulations, prototype software, and support integration and test across multiple vehicle platforms.

Ideal candidates bring deep MATLAB/Simulink and C/C++ expertise, strong problem‑solving, collaboration, and communication skills, with a U.S.