System Hardware Engineer (Autonomous Flight Termination)

STEM Boomerang•Rio Rancho, NM

About The Position

We are seeking a Senior Autonomous Flight Termination System (AFTS) Hardware Engineer to design and deliver high-reliability flight safety electronics for Castelion's long-range hypersonic strike vehicles. This role is critical to ensuring safe, deterministic vehicle termination through robust, fault-tolerant hardware. You will work hands-on with multidisciplinary engineering teams to design, build, test, and validate pulsed power electronics and firing systems, with a focus on electronic safe and arm devices (ESADs) and related architectures in a fast-paced, hardware-driven environment.

Requirements

Bachelor's, Master's, or PhD in Electrical Engineering or related field
5+ years of experience designing and validating pulsed power, high-voltage, or firing system electronics for aerospace, defense, or similar high-reliability applications
Strong background in energy storage, high-speed/high-current switching, and pulsed power circuit design
Experience with electronic safe and arm devices (ESADs), initiation systems, or similar safety-critical hardware
Proficiency in circuit design, simulation, and analysis tools (e.g., SPICE, MATLAB/Simulink, or equivalent)
Experience with hardware bring-up, environmental testing, and troubleshooting in a lab or flight hardware environment
Familiarity with system safety, redundancy, and fault-tolerant design principles for mission-critical systems
Experience designing for EMI/EMC, thermal performance, and operation in extreme environments
Strong problem-solving mindset, thriving in a fast-paced, hardware-rich, high flight cadence environment

Responsibilities

Design and deliver high-reliability flight safety electronics for Castelion's long-range hypersonic strike vehicles.
Ensure safe, deterministic vehicle termination through robust, fault-tolerant hardware.
Work hands-on with multidisciplinary engineering teams to design, build, test, and validate pulsed power electronics and firing systems.
Focus on electronic safe and arm devices (ESADs) and related architectures.
Design for EMI/EMC, thermal performance, and operation in extreme environments.

Benefits

Meaningful equity for all full-time employees
Four (4) weeks of paid time off
Ten (10) company paid holidays
Medical plans at 100% employee covered and 80% of dependent coverage
Dental & Vision: 90% employees and 80% for dependents
FSA/HSA options
401k plan
Paid Parental Leave: Birthing parents eligible for up to 10 weeks, non-birthing parents up to 4 weeks. Additional paid pregnancy leave for CA employees.
Frequently catered lunches and team meals
Company-covered meals when extra time or effort is required
Fully stocked kitchen with unlimited snacks and drinks
$100 monthly fitness stipend
Onsite electric vehicle charging