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# Principal GNC Engineer - Autonomy Algorithm Developer

- **Company:** Northrop Grumman
- **Location:** El Segundo, CA, United States
- **Salary:** $114,000.0 - $171,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), C++ (Programming Language), Dynamical Systems, Hardware-In-The-Loop Simulation, Python (Programming Language), MATLAB, SAP (Applications), Simulink, Stateflow, SC Clearance
- **Published:** July 1, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9007303/principal-gnc-engineer-autonomy-algorithm-developer

## About the Role

* Bachelor's degree in a relevant Science, Technology, Engineering or Mathematics (STEM) discipline with 5 years of related experience; OR Master's degree in a relevant STEM discipline with 3 years of related experience; OR a PhD in a relevant STEM discipline with 1 year of related experience.
 * Working knowledge of fixed-wing aircraft flight dynamics.
 * Experience using linear control principles and tools to design feedback control systems.
 * Experience analyzing non-linear simulations of aircraft closed-loop dynamics.
 * Working knowledge of autopilot functions.
 * Working knowledge of outer loop control law performance requirements.
 * Experience using MATLAB to create, process, analyze, and visually represent data.
 * Experience using Simulink to model dynamic systems.
 * Must have the ability to obtain and maintain a US Government Secret clearance and Special Access Program (SAP) within a reasonable amount of time as determined by business needs, * Current active in-scope US Government Secret security clearance or higher, with the ability to obtain Special Program Access (SAP).
 * Knowledgeable in flight sciences, outer loop control algorithms, optimal trajectory generation techniques (e.g. RRT, A-star) and air vehicle missions (e.g. shipboard operations, search)
 * Familiarity with C/C++ programming.
 * Familiarity with Python programming.
 * Familiarity with Java programming.
 * Experience with autonomy algorithms (Autonomous Taxi/ Take Off and Landing, etc.) for driving control laws.
 * Familiarity with Simulink Stateflow Modeling

## Description

* Support research and development of flight control algorithms for manned and unmanned air vehicles.
 * Design, develop, implement, verify, and test algorithms, software, and simulation tools to perform guidance, navigation and control (GNC) of autonomous unmanned aircraft.
 * Develop control laws both on ground and in flight.
 * Design outer and inner loop control laws, and associated logic and autonomy functions, with a focus on outer loop.
 * Develop air vehicle system linear and non-linear dynamic simulation models and integrate models into software and hardware-in-the-loop simulation environments.
 * Support non-linear simulation and hardware-in-the-loop lab testing.
 * Support flight test activities and analyze air vehicle flight test data.
 * Develop analysis to support design reviews at different stages in a development program, such as PDR, CDR, etc.


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