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L3Harris Technologies

Global defense contractor delivering aerospace tech

GNC Software Engineer

Flight Dynamics & GNCPosted on Aug 10
Full-timeRichardson, TX, USANo salary listed

About the Job

Requirements

  • Proficiency with MATLAB/Simulink and C/C++.
  • Experience performing trade studies and parametric analyses.
  • Strong written and verbal communication skills.
  • Proficiency with Microsoft Office applications.
  • Demonstrated technical competency in at least one guidance, navigation, and control discipline, such as guidance, navigation, control theory, tracking and state estimation, or high-fidelity vehicle modeling.
  • Ability to lift up to 20 pounds.
  • Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Robotics, Mathematics, or a related technical discipline, and at least four years of related engineering experience; alternatively, a master’s degree with at least two years of related engineering experience; in lieu of a degree, at least eight years of prior related engineering experience.
  • Active U.S. Secret security clearance.

Responsibilities

  • Develop and evaluate guidance, navigation, and control algorithms.
  • Build high-fidelity simulations and implement software prototypes.
  • Support integration and testing, and analyze performance across vehicle types and mission profiles.
  • 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 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.
  • Assess system performance, capability, robustness, and sensitivity through analysis, simulation, and testing.
  • Perform root-cause analysis of anomalies and support corrective-action development.
  • Prepare and communicate design, analysis, and test results to internal and external stakeholders.
  • Support continuous improvement of the GNC organization by developing technical standards, processes, tools, and reusable resources.
  • Support technical growth across the team through mentorship, collaboration, peer reviews, and knowledge sharing.
  • Travel up to 10% may be required for field testing or multi-site support.

Desired Qualifications

  • An advanced degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Robotics, Mathematics, or a related technical discipline.
  • Demonstrated technical competency in multiple GNC disciplines.
  • Familiarity with integrating and using mission-sensor types, including radar and electro-optical/infrared sensors, modes, and stabilization.
  • Familiarity with vehicle-sensor types, including GPS, IMU, and ADS, and their modes.
  • Familiarity with tracker types and Kalman filtering.
  • Background in physics and rigid-body dynamics.
  • Experience mentoring or providing technical guidance to other engineers.
  • Experience with team leadership and delegation.
  • Ability to adapt and exercise sound judgment and emotional intelligence in a fast-paced engineering environment.
  • Experience leading and collaborating in a multidisciplinary, diverse, and dynamic team environment.
  • Written, verbal, and presentation communication skills.

About the Company

L3Harris Technologies

Global defense contractor delivering aerospace tech

L3Harris Technologies provides advanced aerospace, defense, and space systems for governments and commercial customers. Its products include sensors, communications, and propulsion—such as tactical radios, night-vision gear, satellite payloads, missile defense, and space propulsion—delivered as integrated systems for operations across air, land, sea, space, and cyber domains. The company blends legacy technologies from two joining giants with newer capabilities, faster acquisition cycles, and a focus on missiles, space, and resilient communications to field solutions quickly. Its goal is to be a trusted, scale-ready provider of next‑generation defense and intelligence capabilities for national security and related customers.

Company size
10,001+
Company stage
IPO
Headquarters
Melbourne, FL
Founded
1895

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