Control Actuation System Engineer

Furientis

$110K — $130K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • B.S. in Mechanical, Electrical, Aerospace, or Mechatronics Engineering; M.S. preferred.
  • 7+ years of experience with electromechanical actuators, including hardware-in-the-loop or flight experience.
  • Proven hands-on mechanical design experience with compact actuators under aero and shock load.
  • Fluency in brushless motor characteristics including PMSM and BLDC and their control schemes.
  • Strong understanding of servo-loop dynamics including tuning and compensation techniques.
  • Experience with motor-drive electronics and embedded firmware specifications.
  • Proficient in MATLAB/Simulink or Python for system modeling and controller design.

Responsibilities

  • Own the fin actuation system for the F-series airframe, including key mechanical components.
  • Size motors and gear trains for aerodynamic performance and validate against autopilot requirements.
  • Specify actuator drive electronics in collaboration with Avionics.
  • Define embedded servo firmware requirements and tune systems through practical bench testing.
  • Establish a fully-functional actuator dyno for thorough characterization.
  • Conduct hardware-in-the-loop simulations with flight control systems.
  • Manage environmental qualification testing of the actuator stack, addressing various stress factors.
  • Oversee subsystem transition from prototype to flight and perform data analysis post-flight.

Benefits

  • On-site work in Los Angeles, CA with a collaborative environment.
  • Opportunities for hands-on experience from design to flight.
  • Engagement in cutting-edge aerospace technology and innovation.
  • Monthly travel to test events and supplier engagements for practical experience.
  • Work in a high-impact, mission-oriented environment.
Full Job Description


About the Team

Vehicle Engineering owns the missile as a physical object from design through flight: structures, mechanical integration of the full subsystem stack, and the build.

About the Role

You will own the fin control actuation system: motor sizing, gear train, mechanical design, servo control law, dyno characterization, hardware-in-the-loop integration, and environmental qualification. Drive electronics are designed by Avionics and embedded firmware by Avionics software, both to your spec; you close the loop with them on the bench. Hands-on from clean-sheet design through ground test and flight. For someone who has taken a tactical-class actuator from sizing through hardware-in-the-loop and flight, ideally on a missile, munition, or guided projectile.

What You'll Do

  • Own the fin actuation system across the F-series airframe: motor, gear train, output shaft, position sensor, and the servo control law that ties them together.
  • Size the motor and gear train against aero hinge moments, slew rate, and stall torque across the Mach envelope. Defend bandwidth and authority against autopilot requirements.
  • Spec the actuator drive electronics with Avionics: power stage, current sensing, position interface, and motor-bus partitioning.
  • Spec the embedded servo firmware with Avionics software: current loop, position loop, command interface, and fault handling. Review the implementation and tune from the bench.
  • Stand up the actuator dyno from zero: load fixture, instrumentation, automated test sequences, and frequency-response and step-response characterization.
  • Run hardware-in-the-loop with the flight computer and GNC autopilot. Close the loop against the plant model and the integrated airframe.
  • Own environmental qualification of the actuator stack: shock, vibration, temperature, humidity, and EMI.
  • Take the subsystem from prototype through and flight, including post-flight teardown and data review.
  • Make the cost call on every gear set, magnet, sensor, and connector. Pick the simplest part that meets the requirement.


Skills We're Hiring For

  • B.S. in Mechanical, Electrical, Aerospace, or Mechatronics Engineering. M.S. preferred.
  • 7+ years owning electromechanical actuators from sizing through bench validation and integration, with at least one actuator taken through hardware-in-the-loop or flight.
  • Hands-on mechanical design of compact actuators: motor selection, gear trains, output shafts, bearings, and packaging under aero and shock load.
  • Fluency with brushless motor characteristics end-to-end: PMSM and BLDC, commutation, current control, and sensored or sensorless schemes.
  • Servo-loop fluency: frequency response, bandwidth, phase margin, anti-windup, friction and backlash compensation. Can tune a real actuator, not only simulate one.
  • Working fluency with motor-drive electronics and embedded servo firmware sufficient to spec requirements to Avionics and partner on tuning at the bench.
  • MATLAB/Simulink or Python for plant modeling and controller design.
  • Hands-on bench discipline: dyno setup, frequency-response characterization, fault injection, and environmental testing.


Bonus Points For

  • Direct flight experience on a tactical missile, munition, interceptor, or guided projectile control actuation system.
  • Hands-on experience writing motor-control firmware or designing motor drive boards. Useful for tuning the loop across the interface with Avionics.
  • High-shock and high-vibration actuator qualification: launch loads, gun-launched munitions, or hard-impact events.
  • Hinge-moment characterization or actuator-load modeling alongside an aerodynamicist.
  • Production transition: moved an actuator from prototype to volume manufacturing, including factory acceptance test flow.
  • Vendor management across the motor, magnet, gearing, sensor, and connector supply chain.
  • Familiarity with insensitive munitions and tactical-missile qualification environments.
  • Hobbyist drone, robotics, motorsport, or model-rocketry build and flight experience that translates to packaging and field-handling intuition.


Eligibility & Logistics Location: On-site at our Los Angeles, CA HQ; remote work is not available. Monthly weekend travel for test events and supplier engagements. Clearance: A clearance is not required for this position. Must be a U.S. Person.

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