Your missionAs anRF Power Systems Engineer, you will contribute to the development of Kreios Space's electric propulsion systems for Very Low Earth Orbit (VLEO). Your mission will be to support the development, integration, and validation of the RF power system that enables plasma generation and sustainment in our air-breathing electric propulsion technology. You will work on the architecture and performance of RF generators, matching networks, RF power delivery chains and their interaction with plasma loads. You will also serve as the primary technical interface with external suppliers responsible for the development of the Power Processing Unit (PPU), ensuring alignment with system requirements and supporting integration, testing and verification activities. You will work closely with propulsion, plasma physics, avionics and systems engineering teams in a highly hands‑on environment, helping transform cutting‑edge plasma propulsion concepts into robust flight hardware.Your profileSpecific KnowledgeStrong understanding of RF engineering fundamentals, including power transmission, impedance matching and RF system characterizationExperience with RF power generation and delivery systemsKnowledge of matching networks and RF coupling techniques for complex or dynamic loadsExperience working with RF generators, amplifiers and high-power RF hardwareExperience with High Voltage systems and associated safety requirementsExperience with MOSFET-based switching circuitsAbility to review electrical schematics, technical documentation and supplier designsExperience defining and executing test campaigns and analyzing experimental dataBasic programming or scripting skills (Python,



MATLAB or similar)Nice to HaveUnderstanding of plasma-RF interactions or willingness to develop expertise in this areaElectric propulsion systemsPlasma sources or plasma processing equipmentRF plasma generation systemsSpace hardware developmentEMC/EMI engineeringECSS standardsSupplier management and technical coordinationReliability, FMEA and failure investigationsInterpersonal SkillsStrong systems‑thinking mindset and ability to understand interactions across complex subsystemsProactive and hands‑on approach to solving technical challengesMethodical and detail‑oriented, particularly when working with high‑voltage equipmentComfortable collaborating within multidisciplinary engineering teamsStrong communication skills, capable of challenging suppliers constructively and driving technical discussionsAdaptable and resilient in a fast‑moving startup environmentPositive attitude, constructive sense of humor and ability to contribute to a healthy and enjoyable work environmentWhy us?Work on real space hardware that will fly in orbit, not just simulations or papersBe part of a fast‑growing European space startup shaping the future of sustainable space operationsTake ownership of a critical subsystem at the heart of our propulsion technologyHelp build Kreios Space's internal expertise in high‑voltage power electronics and electric propulsionJoin a highly collaborative, respectful and supportive team where knowledge is shared openlyEnjoy a great work environment that values trust, autonomy, learning and good energy at workStrong technical growth path in a scaling company, where your work has visible impact and you actively help shape both the technology and the way we work

📌 Rf Power Systems Engineer (Lugo)
🏢 Kreios Space
📍 Lugo