Senior GNC Engineer – Flight Control for Defense Systems

Castelion Corporation; Torrance (CA); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Castelion is seeking a GNC Engineer in Torrance, CA to develop control systems for advanced missile platforms. You will design and validate flight control algorithms, run SITL/HITL tests, and collaborate with cross-functional teams to deliver accurate flight predictions.

The role emphasizes hands-on testing, model validation, and hardware-in-the-loop workflows, with opportunities to influence design trades and performance in real-world flight scenarios.

Qualifications

• Bachelor’s or Master’s degree in Aerospace, Mechanical, Electrical Engineering or related field.
• 2+ years in GNC engineering or similar aerospace/missile role.
• Experience with 6 DOF simulation tools and flight model building.
• Familiarity with CFD, Missile Datcom, and aerodynamics tools.
• Proficient in SITL systems testing.

Responsibilities

• 6 DOF Simulations: build and maintain multi-DOF models, SITL to HITL workflow.
• Aerodynamic Analysis: estimate and calibrate aero coefficients, validate via flight tests and CFD.
• Electromechanical Actuators: develop actuator models, specify sensor requirements.

Skills

6 DOF simulations

SITL testing

Missile flight modeling

Python

MATLAB

C++

Education

Bachelor/Master in Aerospace/Mechanical/EE

Tools

CFD

Missile Datcom

HITL

Job description

Castelion is seeking a GNC Engineer in Torrance, CA to develop control systems for advanced missile platforms. You will design and validate flight control algorithms, run SITL/HITL tests, and collaborate with cross-functional teams to deliver accurate flight predictions.

The role emphasizes hands-on testing, model validation, and hardware-in-the-loop workflows, with opportunities to influence design trades and performance in real-world flight scenarios.