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Hardware Electronics Engineer – High Voltage & Power Electronics

Nigrán, Spain
Full-time
Permanent employee

Your mission

We are looking for a Power Electronics / High Voltage Hardware Engineer capable of designing and validating electronic systems that generate, regulate and distribute power for space propulsion applications.

The ideal candidate has practical experience developing DC/DC converters, high-voltage electronics, and power conversion architectures, and is comfortable taking designs from concept through laboratory validation.

You will work closely with RF, Plasma, Systems and Mechanical Engineers to develop the next generation of electric propulsion hardware.


Key Responsibilities

  • Design, develop and validate power electronics hardware for space propulsion systems.
  • Develop DC/DC converters, high-voltage power stages and power distribution architectures.
  • Support component selection, PCB design reviews, hardware debugging and thermal management solutions.
  • Define and execute laboratory testing, performance analysis and system validation activities.
  • Contribute to the development of future Power Processing Units (PPUs) and collaborate with multidisciplinary engineering teams.

Your profile

  • Bachelor's or Master's Degree in Electronic Engineering, Electrical Engineering, Telecommunications Engineering, Power Electronics or a related field.
  • 3+ years of experience in power electronics development.

Essential Technical Skills


Power Electronics
  • Experience designing DC/DC converters and switched-mode power supplies (SMPS).
  • Understanding of voltage conversion, control loops and converter stability.
High Voltage
  • Experience with high-voltage systems and circuits operating above 300V.
  • Knowledge of insulation, protection strategies and HV safety requirements.
Hardware Design
  • Schematic capture, PCB design and analog circuit development.
  • Experience selecting power components such as MOSFETs, IGBTs, GaN or SiC devices.
Laboratory & Validation
  • Hardware bring-up, debugging and root cause analysis.
  • Experience using laboratory instrumentation and validating power electronics performance.

Why us?

Be part of a pioneering NewSpace company developing a propulsion technology that could redefine how satellites operate in Very Low Earth Orbit. You will work on challenging, first-of-their-kind power electronics developments with direct impact on future space missions.

Join a highly multidisciplinary team of experts in plasma physics, RF, systems and aerospace engineering, where you will take ownership of critical hardware developments from concept to validation. As Kreios continues to grow, you will have the opportunity to shape our in-house electronics capabilities and contribute to groundbreaking space technology

About us

We are leading the development of the first air-breathing electric propulsion (ABEP) system designed specifically for Very Low Earth Orbit (VLEO). This revolutionary engine enables satellites to orbit between 150 and 300 km by capturing and using atmospheric particles as propellant.
By eliminating the need to carry fuel onboard, we drastically increase efficiency and overcome the main challenge of atmospheric drag in VLEO. This disruptive technology opens the door to an entirely new generation of space services, from high-resolution Earth observation to near real-time communications.
To achieve it, we rely on a team of professionals who are passionate, visionary, and committed to pushing the boundaries of what is possible. If you share this passion and want to leave your mark on the future of the space industry, we want to meet you.