Demo

Specialist, GNC Engineer

L3Harris and Careers
Plano, TX Full Time
POSTED ON 12/26/2025
AVAILABLE BEFORE 2/25/2026

L3Harris is dedicated to recruiting and developing 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 the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Specialist, GNC Engineering

Job Code: 30534

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


Qualifications:

  • 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 security clearance
  • Experience in at least one GNC discipline (Guidance, Navigation, Control Theory, Track State Estimation, High-Fidelity Vehicle Modeling)
  • Experience with MATLAB/Simulink and/or C/C .


Preferred Additional Skills:

  • Bachelor's or Masters degree in in Aerospace/Mechanical/Electrical Engineering, Robotics, or Mathematics
  • Demonstrated 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
  • Commitment to organizational success and work ethic
  • Proficiency with Microsoft Office products


L3Harris Technologies is proud to be an 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.

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 resume for this position, you understand and agree that L3Harris Technologies may share your resume, 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 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.

Salary.com Estimation for Specialist, GNC Engineer in Plano, TX
$89,919 to $112,825
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