F

Furientis

Manufactures cost-effective ship-based interceptor munitions

Control Actuation System Engineer

Full-Time
No salary listed
Senior
Bachelor's, Master's
Los Angeles, CA, USA
In PersonMonthly weekend travel is required for test events and supplier engagements.
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A B.S. in Mechanical, Electrical, Aerospace, or Mechatronics Engineering is required; an M.S. is preferred.
  • At least 7 years of experience owning electromechanical actuators from sizing through bench validation and integration, including at least one actuator taken through hardware-in-the-loop or flight.
  • Hands-on mechanical design experience with compact actuators, including motor selection, gear trains, output shafts, bearings, and packaging under aerodynamic and shock loads.
  • Fluency with brushless motor characteristics, including permanent-magnet synchronous motors, brushless DC motors, commutation, current control, and sensored or sensorless schemes.
  • Fluency with servo-loop concepts including frequency response, bandwidth, phase margin, anti-windup, friction compensation, and backlash compensation, with the ability to tune a real actuator.
  • Working fluency with motor-drive electronics and embedded servo firmware sufficient to specify requirements to Avionics and partner on bench tuning.
  • Working knowledge of MATLAB/Simulink or Python for plant modeling and controller design.
  • Hands-on experience with dyno setup, frequency-response characterization, fault injection, and environmental testing.
  • Must be a U.S. Person and eligible to access export-controlled information.
Responsibilities
  • Own the fin actuation system across the F-series airframe, including the motor, gear train, output shaft, position sensor, and servo control law.
  • Size the motor and gear train against aerodynamic hinge moments, slew rate, and stall torque across the Mach envelope, and defend bandwidth and authority against autopilot requirements.
  • Specify actuator drive electronics with Avionics, including the power stage, current sensing, position interface, and motor-bus partitioning.
  • Specify embedded servo firmware with Avionics software, including the current loop, position loop, command interface, and fault handling; review the implementation and tune it from the bench.
  • Stand up the actuator dyno, including the load fixture, instrumentation, automated test sequences, and frequency-response and step-response characterization.
  • Run hardware-in-the-loop testing with the flight computer and GNC autopilot, closing the loop against the plant model and integrated airframe.
  • Own environmental qualification of the actuator stack, including shock, vibration, temperature, humidity, and electromagnetic interference testing.
  • Take the subsystem from prototype through production and flight, including post-flight teardown and data review.
  • Make the cost decision on each gear set, magnet, sensor, and connector, selecting the simplest part that meets the requirement.
Desired Qualifications
  • 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, including tuning the loop across the interface with Avionics.
  • Experience qualifying actuators for high-shock and high-vibration environments, including launch loads, gun-launched munitions, or hard-impact events.
  • Experience with hinge-moment characterization or actuator-load modeling alongside an aerodynamicist.
  • Experience transitioning an actuator from prototype to volume manufacturing, including factory acceptance test flow.
  • Vendor-management experience 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.

About the company

Furientis develops affordable, ship-based defensive missiles to counter drone threats and address interceptor shortages. Its products are interceptor systems that use multimodal seekers and scalable solid rocket motors, designed for final assembly in about 30 minutes and high-volume production. The company emphasizes manufacturability and rapid, end-user-driven spiral development to improve capabilities, supported by a CRADA with the Naval Postgraduate School. Its goal is to reduce the cost of modern naval warfare by providing thousands of defense munitions per year to supplement existing systems.

Company Size

11-50

Company Stage

Series A

Total Funding

$30M

Headquarters

El Segundo, California

Founded

2025

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Simplify's Take

What believers are saying

  • Silent Ventures led Furientis's $5 million round on May 14, 2026.
  • NPS CRADA and Tactical Missile Innovation Challenge finalist status validate military pull.
  • A 2026 follow-on funding signal suggests investors still price in rapid scale potential.

What critics are saying

  • Navy procurement stays captive to RTX and Lockheed Martin through 2027.
  • Missile qualification failures on seeker, SRM, or ship-launch integration kill production timelines.
  • Without a program of record, Furientis becomes a test article company, not a business.

What makes Furientis unique

  • Furientis ships ship-based interceptors built for manufacturability, not laboratory demo hardware.
  • Franzen and Simsarian bring Virgin Galactic, Virgin Orbit, and Castelion propulsion experience.
  • By May 2026, Furientis had six flight tests and ten static-fire tests.

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Growth & Insights and Company News

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AlphaMaven
Aug 7th, 2026
Furientis Secures $25 Million Funding Round, Attracts Benchmark Investment - GuruFocus

Furientis Secures $25 Million Funding Round, Attracts Benchmark Investment  GuruFocus

FinSMEs
May 18th, 2026
Furientis Raises $5M in Pre-Seed Funding

Furientis, a Los Angeles, CA-based defense technology startup developing cost-effective defensive munitions, raised $5M in Pre-Seed funding

The Outlook
May 14th, 2026
Furientis emerges from stealth to address U.S. Interceptor missile shortage.

Furientis emerges from stealth to address U.S. Interceptor missile shortage. GlobeNewswire | Furientis Today at 5:05am PDT LOS ANGELES, May 14, 2026 (GLOBE NEWSWIRE) - Furientis, a defense technology startup developing cost-effective defensive munitions, today emerged from stealth and announced a $5 million pre-seed fundraise. The round was led by Silent Ventures with participation from Bessemer Venture Partners, SV Angel and others, including repeat founders of companies including Anduril, Erebor, and Armada. The company is actively flight-testing ship-based interceptors designed for scalable production to supplement high-cost systems produced in limited volumes. Founded in 2025, Furientis is led by co-founders Brody Franzen and Aris Simsarian, who each bring a decade of experience in rocket design and testing at high-growth aerospace companies. Simsarian previously served as a Propulsion Engineer and Manager of Rocket Engine Test at Virgin Orbit, while Franzen held roles including Deputy Chief Engineer at Virgin Galactic and, most recently as a Senior Engineer at Castelion, a defense startup building hypersonic missiles. "During the 2024 Red Sea crisis, the U.S. Navy used more than 200 interceptor missiles to defend ships against Iranian-backed threats," said Franzen. "That matters not only because of the cost imbalance - using $4 million missiles to intercept $40,000 drones - but also because of the scale challenge, with only around 200 of these interceptors delivered annually versus their thousands per year. Our desire to build cost effective, scalable, and reliable interceptor systems en masse to address this deficiency is what inspired us to start Furientis." Furientis operates a 9,000-square-foot facility in Los Angeles and follows a rapid, end-user-driven spiral development model. Over the past six months, the company has conducted six flight tests and 10 static-fire tests of its demonstrator missile platform, reflecting a high cadence of development for early-stage defense systems. "To meet the demand stemming from recent stockpile shortfalls and to support long-term U.S. magazine coverage objectives, Furientis is rapidly building and testing its interceptors," said Jackson Moses, Managing Partner of Silent Ventures. "Brody and Aris have significant experience across design, propulsion, and testing, and they've structured the company around quick iteration in lockstep with end users. This combination gives them a legitimate path to scale production. Their low price point provides a credible pathway to procurement." Furientis has established multiple partnerships with the U.S. Navy and U.S. Army. Earlier this year, the company was selected as one of five finalists, alongside Anduril and Kratos, in the Tactical Missile Innovation Challenge led by the Naval Postgraduate School (NPS) in collaboration with the Office of Naval Research. The company also recently signed a Cooperative Research and Development Agreement (CRADA) with the NPS, focused on maturation of their system and refinement of government reference architectures. Furientis is continuing to develop its products in close coordination with end-user feedback. "Current conflicts continue to highlight the mismatch between the cost, availability, and scale of defensive systems and those of the threats they are designed to defeat," said Maj. Dillon Pierce, Ph.D., Chief Engineer, Marine Corps Rapid Capabilities Office, and Research Assistant Professor at the Naval Postgraduate School. "Forming CRADAs with industry partners like Furientis allows us to address that gap at the NPS through testing and rapid iteration of viable solutions. It also broadens the defense industrial base to deliver capabilities at greater speed and scale - a win-win." Boilerplate Furientis is a defense technology company building cost-effective ship-based interceptor systems designed for high-volume production and reliability. Founded by Brody Franzen and Aris Simsarian, former engineers from Virgin Orbit and Castelion, the company is focused on closing the cost and scale gap in U.S. defensive munitions. Its investors include Silent Ventures, Bessemer Venture Partners, Liquid 2, SV Angel, Humba Ventures, Multiball Capital, and others. Furientis operates a 9,000-square-foot facility in Los Angeles and maintains an active flight testing cadence. Media Contact Morgan Malone [email protected] This is a paid placement. For further inquiries, please contact GlobeNewswire directly.