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Guidance, Navigation, Control Engineer-Active Secret Clearance Required

Richardson, Texas

Job ID 8402
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L3Harris is dedicated to recruiting and developing diverse, high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 50,000 employees, with customers in more than 100 countries.

Job Title: Guidance, Navigation, ControlEngineer-Active Secret Clearance Required

Job Code: 8402

Job Location: Plano, TX

Job Description:

Using first-principles thinking, GNC engineers use a foundational understanding of physics combined with multi-disciplinary experience to develop and evaluate system capability to help steer a program’s path forward.  GNC Engineers are responsible for simulation and software development, implementation, testing, and analysis supporting a variety of vehicle types and configurations. 

The Agile Development Group specializes in developing disruptive, next-generation technologies for advanced Unmanned Air Systems (UAS / UAV), advanced radar systems, next-generation weapon systems, and other RF sensor technologies using small company agility and big company experience.

Essential Functions: 

  • Support simulation and software development
    • Develop dynamic vehicle aerodynamic, propulsion, and hardware/sensor models
    • Develop guidance algorithms to provide mission capability
    • Design and tune controllers for vehicle stability/control and performance
    • Integrate a suite of sensor feedback for Navigation and Track State Estimation development
  • Evaluate system performance, capabilities, and sensitivities using a variety of methods
  • Support root-cause failure identification and resolution studies
  • Create design/results documentation for internal and external customers
  • Support growth of GNC Functional Organization through creation of technical/process resources
  • Ability to obtain and maintain DoD security clearances as required
  • Ability to obtain and maintain any additional clearances as required
  • Physical Requirements (such as ability to lift up to 20 lbs.)
  • Up to 10% travel may be required for field testing and/or multi-site support
  • Other duties as required


  • Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
  • Active DoD Secret clearance
  • Demonstrated Technical Competancy in at least one GNC discipline (Guidance, Navigation, Control Theory, Track State Estimation, High-Fidelity Vehicle Modeling)
  • Experience with MATLAB/Simulink and C/C++

    Preferred Additional Skills:

    • Masters degree in Aerospace/Mechanical/Electrical Engineering, Robotics, or Mathematics and/or combined with equivalent experience
    • Excellent problem solving and trade/parametric study execution
    • Familiarity with a variety of mission sensor types (RADAR, EO/IR, etc), modes, and stabilization
    • Familiarity with a variety of vehicle sensor types (GPS, IMU, ADS, etc) and modes
    • Familiarity with a variety of tracker types and kalman filtering
    • Background in physics/rigid body dynamics
    • Excellent people skills, with experience leading and collaborating in a multi-disciplinary, diverse, and dynamic team environment.
    • Excellent communication skills (written, verbal, & presentation)
    • Positive Attitude, Mentoring, Emotional Intelligence, Teaming, Delegation
    • Excellent people skills to include collaborating in a multi-disciplinary, diverse, and dynamic team environment
    • Outstanding work ethic and commitment to organizational success
    • Proficiency with Microsoft Office products  

    Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

    By submitting your résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

    L3Harris Technologies is proud to be an Affirmative Action/Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

    L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

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