GNC Engineer

Castelion Corporation•Torrance, CA

About The Position

As a GNC Engineer at Castelion, you will build the algorithms, models, and software that make our vehicles fly. You will work across guidance, navigation, flight controls, and high-fidelity simulation to solve difficult problems in high-speed flight. Depending on your strengths and interests, you may focus deeply in one area or work across several. You will take ideas from analysis and simulation through software, hardware testing, and flight. This role is ideal for engineers who want broad ownership, hard technical problems, and a direct connection between their work and vehicle performance.

Requirements

Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Computer Engineering, or a related technical field
Familiarity with aerodynamics, flight dynamics, and rigid-body dynamics
Strong fundamentals in dynamics, controls, estimation, numerical methods, or simulation
Strong programming skills in Rust, C/C++, Python, Julia, or a similar language
Demonstrated ability to solve technical problems through coursework, research, internships, projects, or professional experience
Ability to communicate technical results clearly and work effectively with multidisciplinary engineering teams
U.S. citizenship is required
Ability to obtain and maintain a U.S. government–issued security clearance

Responsibilities

Develop and tune flight control algorithms for stability and performance across a challenging flight envelope
Develop guidance algorithms for trajectory shaping and mission execution
Develop navigation and state estimation algorithms
Model and analyze actuation systems, including aerodynamic control surfaces and electromechanical actuators
Build and improve high-fidelity 6-DOF simulations of vehicle flight
Model vehicle dynamics, aerodynamics, propulsion, sensors, actuators, and environmental effects
Implement and test GNC algorithms in flight software
Support Monte Carlo, Software-in-the-Loop (SITL), and Hardware-in-the-Loop (HITL) test environments
Support vehicle sizing, performance analysis, and hardware requirements
Support flight test planning, prediction, execution, and post-flight analysis
Use simulation, hardware, and flight data to improve models and vehicle performance

Benefits

Meaningful long-term equity
Four (4) weeks of paid time off
Ten (10) company-paid holidays
Comprehensive health benefits - including 100% employee-covered medical and strong dependent coverage
Dental and vision plans
Paid parental leave
$100 monthly fitness stipend
Onsite EV charging
Catered meals
Company-covered food during high-demand periods
Fully stocked kitchen