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Principal GNC & Trajectory Engineer

Parsons Corporation
Huntsville, AL Full Time
POSTED ON 4/11/2026
AVAILABLE BEFORE 5/8/2026
In a world of possibilities, pursue one with endless opportunities. Imagine Next!

At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.

Job Description

Parsons is looking for an amazingly talented Principal GNC & Trajectory Engineer to join our team! In this role you will provide technical and advisory assistance to Targets Program Office by aiding in the refinement and implementation of Target trajectories in support of the agencies flight test events to validate the weapon and system sensors.

What You'll Be Doing

  • Support the Missile Defense Agency (MDA) Directorate for Test (DT) Targets program office with development of missile defense target vehicles
  • Support the Targets System Engineering team in all aspects of target design, analysis, and test to include requirements development and assessment, modeling and simulation, test analysis and reporting
  • Utilize knowledge, skills and experience with missile characteristics (physical, kinematics, signatures) and engineering to support engineering activities and data product development
  • Technical focus areas include Guidance Navigation and Control (GNC), Modeling and Simulation (M&S), and vehicle performance assessments
  • Generate and analyze target vehicle 6-DoF and 3-DoF trajectory data using industry standard (e.g., TAOS) and in-house developed (e.g., MATLAB, Python, C ) tools
  • Support flight test analysis and reporting to include analyzing vehicle onboard instrumentation data and generating trajectory reconstruction
  • Collaborate with a dynamic team of experts in multiple technical areas to develop analysis and engineering tools


What Required Skills You'll Bring

  • Master's degree in STEM field (e.g., physics, engineering, math.).
  • 12 years working on missile defense-related or other DoD programs/projects
  • Note: Bachelor’s degree in STEM field with 7 years of relevant experience may be considered
  • Active DoD Secret security clearance, which requires US Citizenship
  • Strong understanding of principles of aerodynamics; equations of motion; coordinate systems; vehicle dynamics; guidance, navigation, and control; etc.
  • Experience with missile trajectory analysis to include working in different coordinate frames, endo- and exo-atmospheric behaviors, and identifying key trajectory parameters
  • Knowledge of satellite orbital mechanics, ephemeris, orbit propagation, perturbations, determination, and maneuver planning
  • Proficiency with MATLAB, Python, Java, C#, and other programming languages
  • Skilled in use of modeling and simulation tools (e.g., TAOS, STK)
  • Strong oral and written communication skills
  • Proficiency in Microsoft Office (Word, Excel and PowerPoint)


What Desired Skills You'll Bring

  • Familiarity with MDA and/or DoD programs and processes
  • Experience in any or all of the following disciplines: Design, CAD, Trajectory, Radar Cross Section (RCS) Signatures, Optical Signatures
  • Strong attention to detail and ability to efficiently perform multiple tasks
  • Ability to communicate detailed technical information to technical and non-technical personnel


Security Clearance Requirement

An active Secret security clearance is required for this position.

This position is part of our Federal Solutions team.

The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.

Salary Range: $134,100.00 - $241,400.00

We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!

Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.

We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!

Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.

Salary : $134,100 - $241,400

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