Demo

Principal GNC & Trajectory Engineer

APEX TK LLC
Huntsville, AL Full Time
POSTED ON 7/20/2026
AVAILABLE BEFORE 9/20/2026

General Overview

APEX TK 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

      Salary : $120,000 - $160,000

      If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
      Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

      What is the career path for a Principal GNC & Trajectory Engineer?

      Sign up to receive alerts about other jobs on the Principal GNC & Trajectory Engineer career path by checking the boxes next to the positions that interest you.
      Income Estimation: 
      $149,432 - $188,965
      Income Estimation: 
      $179,455 - $227,077
      Income Estimation: 
      $242,530 - $287,120
      Income Estimation: 
      $150,467 - $192,499
      Income Estimation: 
      $149,289 - $190,988
      Income Estimation: 
      $97,457 - $126,589
      Income Estimation: 
      $176,972 - $219,172
      Income Estimation: 
      $205,834 - $254,869
      Income Estimation: 
      $150,467 - $192,499
      Income Estimation: 
      $149,289 - $190,988
      Income Estimation: 
      $97,457 - $126,589
      Income Estimation: 
      $176,972 - $219,172
      Employees: Get a Salary Increase
      View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

      Job openings at APEX TK LLC

      • APEX TK LLC Huntsville, AL
      • General Overview APEX TK is looking for an amazing Senior ​ Signature/Data Analyst to join our team! In this role you will support MDA Targets and Counterm... more
      • 15 Days Ago

      • APEX TK LLC Huntsville, AL
      • General Overview APEX TK is seeking an exceptionally talented and mission-driven Senior Systems Engineer & Program Manager to join our team in direct suppo... more
      • 15 Days Ago

      • APEX TK LLC Huntsville, AL
      • General Overview APEX TK is seeking an exceptionally talented and mission-driven Senior Systems Engineer & Program Manager to join our team in direct suppo... more
      • 15 Days Ago

      • APEX TK LLC Huntsville, AL
      • General Overview APEX TK is looking for an amazingly talented Range Safety Engineer to join our team! In this role you will get to support the MDA Targets ... more
      • 1 Day Ago


      Not the job you're looking for? Here are some other Principal GNC & Trajectory Engineer jobs in the Huntsville, AL area that may be a better fit.

      • Canvas Huntsville, AL
      • Canvas is looking for a talented Principal GNC & Trajectory Engineer to join our team! In this role you will provide technical and advisory assistance to T... more
      • 2 Days Ago

      • ignitenow Huntsville, AL
      • Job Title PRINCIPAL GNC AND TRAJECTORY ENGINEER Location Huntsville, AL 35806 US (Primary) Category Engineering Job Type Full-Time Career Level Experienced... more
      • 10 Days Ago

      AI Assistant is available now!

      Feel free to start your new journey!