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Castelion · 2 weeks ago

Lead Mechanisms Engineer

Torrance, CA

Full-time

Onsite

Senior Level, Lead/Staff

5+ years exp

Castelion is focused on innovative defense development and production, aiming to create advanced long-range strike weapon systems. The Lead Mechanisms Engineer will guide the development and integration of actuation systems for missile programs, leading a cross-functional team in design, integration, and validation of critical actuation functions.

AerospaceGovernmentManufacturingMilitaryNational Security

No H1B

U.S. Citizen Only

Hiring Manager

Andy R.

Responsibilities

Lead and mentor a team of engineers responsible for missile control actuation systems

Architect, design, and implement closed-loop electromechanical control systems (servo loops, fin actuators, thrust vector control, etc.)

Select, integrate, and tune motors, sensors, drivers, and control electronics

Oversee dynamic modeling and analysis of control system stability, responsiveness, and robustness

Drive bench-level, HWIL, and full-system testing to verify performance under real-world loads

Partner closely with GNC, Propulsion, Avionics, and Test teams to ensure end-to-end integration and flight readiness

Own subsystem reliability and support flight test operations, including troubleshooting and post-flight analysis

Provide technical guidance in areas spanning firmware/software integration, motor controllers, and electronics

Qualification

Electromechanical systemsActuator designServo controlMATLAB/SimulinkC/C++Sensors knowledgeMotor driversEmbedded control loopsTeam leadershipCreative problem solvingClear communication

Required

B.S. or M.S. in Mechanical, Electrical, Aerospace Engineering or related discipline

5+ years of experience in electromechanical systems, actuator design, and servo control

Demonstrated experience leading or mentoring technical teams

Deep knowledge of sensors (encoders, resolvers), brushless motors, motor drivers, and embedded control loops

Proficiency in MATLAB/Simulink and C/C++ for control implementation and tuning

Hands-on experience integrating hardware, conducting lab testing, and supporting field deployments

Bias to Action and Creative Problem Solving

High Commitment, High Initiative

Clear Communicator

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State