Senior Power Electronics Engineer

STEM Boomerang; Rio Rancho (NM); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Equity for employees

PTO 4 weeks

Medical coverage

Dental & Vision

401k plan

Parental leave

Meals provided

Snacks & drinks

Fitness stipend

EV charging

Job summary

Castelion is seeking a Senior Power Electronics Engineer in Rio Rancho, NM to develop and integrate advanced electrical power systems for long-range hypersonic strike vehicles. You will ensure reliable power generation, storage, and distribution across mission-critical avionics and subsystems.

Join a fast-paced, hardware-driven team focused on high-reliability aerospace systems, with equity and comprehensive health and retirement benefits included.

Qualifications

• Bachelor's, Master's, or PhD in Electrical Engineering or related field.
• 5+ years in power electronics design for aerospace or high-reliability systems.
• Strong background in battery systems and power distribution architectures.
• Experience with embedded/avionics power management.
• Proficiency in circuit design, SPICE, MATLAB/Simulink, or equivalent.
• Lab/test bring-up and troubleshooting in hardware environments.

Responsibilities

• Develop and integrate electrical power systems for long-range hypersonic vehicles.
• Design, analyze, test, and validate power electronics hardware.
• Collaborate with multidisciplinary teams in a fast-paced, hardware-driven environment.

Skills

Power electronics design

Battery systems

DC-DC power conversion

Embedded/avionics power management

Circuit design & simulation

Education

Bachelor/Master/PhD in Electrical Engineering

Tools

SPICE

MATLAB/Simulink

Job description

Rio Rancho, United States | Posted on 08/06/2026

Castelion was founded to restore America’s ability to field advanced weapons at speed and scale. Inspired by the engineering urgency of the WWII and Apollo eras, we combine rapid iteration, vertical integration, and scalable manufacturing to deliver affordable, high-performance strike systems. Our mission: rebuild industrial agility to strengthen national security and outpace evolving threats.

About the Role:

We are seeking a Senior Power Electronics Engineer to develop and integrate advanced electrical power systems for Castelion's long-range hypersonic strike vehicles. This role is critical to ensuring reliable power generation, storage, and distribution across mission-critical avionics and vehicle subsystems. You will work hands-on with multidisciplinary engineering teams to design, analyze, test, and validate power electronics hardware in a fast-paced, hardware-driven environment.

Requirements

• Bachelor's, Master's, or PhD in Electrical Engineering or related field
  
• 5+ years of experience in power electronics design, analysis, and validation for aerospace, defense, or other high-reliability systems
  
• Strong background in battery systems, power conversion (DC-DC), and power distribution architectures
  
• Experience designing power controllers and power management systems for embedded or avionics applications
  
• Proficiency in circuit design, simulation, and analysis tools (e.g., SPICE, MATLAB/Simulink, or equivalent)
  
• Experience with hardware bring-up, test, and troubleshooting in a lab or flight hardware environment
  
• Familiarity with thermal management, EMI/EMC considerations, and ruggedized electronics design
  
• Strong problem-solving mindset, thriving in a fast-paced, hardware-rich, high flight cadence environment
  
• Employee Equity: Meaningful equity forall full-time employees - share value has increased 150x in three years
  
• Personal Time Off: Four (4) weeks of paidtime off to unplug, reset, and come back sharp—velocity matters,burnout doesn't
  
• Medical: We offer plans at 100% employeecovered and 80% of dependent coverage
  
• Dental & Vision: We cover 90%employees and 80% for dependents to ensure you and your family haveaccess to quality preventive and ongoing care
  
• FSA/HSA: To support long-term health andfinancial resilience, we offer FSA and HSA options that allowemployees to set aside pre-tax dollars for eligible medical anddependent care expenses
  
• Retirement: 401k plan offered to supportlong term financial growth along side high-impact, high-velocity work
  
• Paid Parental Leave: We support growingfamilies with meaningful time to bond and recover. Birthing parentsare eligible for up to 10 weeks of paid leave, while non-birthingparents may take up to 4 weeks of paid leave. This time can be usedfor pre-natal care, pregnancy, childbirth, and related medicalneeds—ensuring every parent has the support they need during thisimportant life moment.8-weeks of paid parental leave for allparents. Additional paid pregnancy leave for CA employees
  
• Meals & Catering: Frequently cateredlunches and team meals, plus company-covered meals when extra timeor effort is required
  
• Snacks & Beverages: Fully stockedkitchen with unlimited snacks and drinks to keep you fueledthroughout the day
  
• Performance & Fitness: $100 monthlyfitness stipend to support peak performance and health, both insideand outside of work
  
• EV Charging: Onsite electric vehiclecharging available for employees