L3Harris Technologies
Specialist, GNC Engineer
L3Harris Technologies is hiring a Specialist, GNC Engineer in Richardson, TX, US. Posted October 7, 2026.
Job at a glance
- Company
- L3Harris Technologies
- Location
- Richardson, TX, US
- Sector
- Engineering & Technology
- Posted
- October 7, 2026
About the job
Job Title: Specialist, GNC Software Engineer
Job Number: 42424
Job Location: Richardson, Texas
Job Schedule: 9/80: Employees work 9 out of 14 days totaling 80 hours worked and have every other Friday off
Job Description:
Using first-principles thinking, GNC software engineers use a foundational understanding of physics combined with multi-disciplinary experience to develop and evaluate system capability to help steer a program’s strategic roadmap. Responsibilities include developing and evaluating guidance, navigation, and control algorithms; building high-fidelity simulations; implementing software prototypes; supporting integration and test; and analyzing performance across a range of vehicle types and mission profiles.
The Agile Development Group (ADG) develops disruptive, next-generation capabilities for advanced unmanned air systems, radar, weapon, and RF sensor platforms. ADG combines the speed and innovation of a small team with the resources and scale of a larger organization.
Essential Functions:
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Proficiency with MATLAB/Simulink and C/C++.
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Demonstrated problem-solving skills, including experience performing trade studies and parametric analyses.
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Strong interpersonal and collaboration skills and ability to work effectively in a multidisciplinary, diverse, and dynamic team environment.
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Strong written and verbal communication skills.
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Proficiency with Microsoft Office applications.
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Simulation and Software Development
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Develop and support simulation environments and software tools for advanced GNC applications.
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Create dynamic models of vehicle aerodynamics, propulsion, hardware, actuators, and sensor systems.
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Design and develop guidance algorithms to deliver mission capability across a range of operating conditions.
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Design, implement, and tune controllers to meet vehicle stability, control, and performance requirements.
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Integrate multi-sensor feedback to support navigation, tracking, and state estimation solutions.
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System Evaluation and Technical Communication
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Assess system performance, capability, robustness, and sensitivity through analysis, simulation, and test.
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Perform root-cause analysis of anomalies and support corrective action development.
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Prepare and communicate design, analysis, and test results to internal and external stakeholders.
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Demonstrated technical competency in at least one guidance, navigation, and control (GNC) discipline, such as:
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Guidance
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Navigation
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Control theory
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Tracking and state estimation
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High-fidelity vehicle modeling
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Functional Growth
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Support continuous improvement of the GNC organization through development of technical standards, processes, tools, and reusable resources.
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Support technical growth across the team through mentorship, collaboration, peer reviews, and knowledge sharing.
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Physical Requirements (such as ability to lift up to 20 lbs.)
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Up to 10% travel may be required for field testing and/or multi-site support.
Qualifications:
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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.
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Active US secret security clearance.
Preferred Additional Skills:
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Advanced degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Robotics, Mathematics, or related technical discipline.
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Demonstrated technical competency in multiple GNC disciplines.
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Familiarity with integration and use of a variety of mission-sensor types (RADAR, EO/IR, etc), modes, and stabilization.
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Familiarity with a variety of vehicle-sensor types (GPS, IMU, ADS, etc) and modes.
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Familiarity with a variety of tracker types and Kalman filtering.
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Background in physics/rigid body dynamics.
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Experience mentoring or providing technical guidance to other engineers.
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Strong team leadership, collaboration, and delegation skills.
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Demonstrated adaptability, sound judgment, and emotional intelligence in a fast-paced engineering environment.
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Excellent people skills, with experience leading and collaborating in a multi-disciplinary, diverse, and dynamic team environment.
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Excellent communication skills (written, verbal, & presentation).
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